top-10-basic-linux-command-for-kaggle.ipynb

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      "/kaggle/input/airplane-tickets-from-moscow-2022/IATA_Airports.json\n",
      "/kaggle/input/airplane-tickets-from-moscow-2022/ticket_dataset_RusAirports.json\n",
      "/kaggle/input/airplane-tickets-from-moscow-2022/IATA_Airlines.json\n"
     ]
    }
   ],
   "source": [
    "# This Python 3 environment comes with many helpful analytics libraries installed\n",
    "# It is defined by the kaggle/python Docker image: https://github.com/kaggle/docker-python\n",
    "# For example, here's several helpful packages to load\n",
    "\n",
    "import numpy as np # linear algebra\n",
    "import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)\n",
    "\n",
    "# Input data files are available in the read-only \"../input/\" directory\n",
    "# For example, running this (by clicking run or pressing Shift+Enter) will list all files under the input directory\n",
    "\n",
    "import os\n",
    "for dirname, _, filenames in os.walk('/kaggle/input'):\n",
    "    for filename in filenames:\n",
    "        print(os.path.join(dirname, filename))\n",
    "\n",
    "# You can write up to 20GB to the current directory (/kaggle/working/) that gets preserved as output when you create a version using \"Save & Run All\" \n",
    "# You can also write temporary files to /kaggle/temp/, but they won't be saved outside of the current session"
   ]
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      "Architecture:                    x86_64\r\n",
      "CPU op-mode(s):                  32-bit, 64-bit\r\n",
      "Byte Order:                      Little Endian\r\n",
      "Address sizes:                   46 bits physical, 48 bits virtual\r\n",
      "CPU(s):                          2\r\n",
      "On-line CPU(s) list:             0,1\r\n",
      "Thread(s) per core:              2\r\n",
      "Core(s) per socket:              1\r\n",
      "Socket(s):                       1\r\n",
      "NUMA node(s):                    1\r\n",
      "Vendor ID:                       GenuineIntel\r\n",
      "CPU family:                      6\r\n",
      "Model:                           85\r\n",
      "Model name:                      Intel(R) Xeon(R) CPU @ 2.00GHz\r\n",
      "Stepping:                        3\r\n",
      "CPU MHz:                         2000.140\r\n",
      "BogoMIPS:                        4000.28\r\n",
      "Hypervisor vendor:               KVM\r\n",
      "Virtualization type:             full\r\n",
      "L1d cache:                       32 KiB\r\n",
      "L1i cache:                       32 KiB\r\n",
      "L2 cache:                        1 MiB\r\n",
      "L3 cache:                        38.5 MiB\r\n",
      "NUMA node0 CPU(s):               0,1\r\n",
      "Vulnerability Itlb multihit:     Not affected\r\n",
      "Vulnerability L1tf:              Mitigation; PTE Inversion\r\n",
      "Vulnerability Mds:               Mitigation; Clear CPU buffers; SMT Host state u\r\n",
      "                                 nknown\r\n",
      "Vulnerability Meltdown:          Mitigation; PTI\r\n",
      "Vulnerability Mmio stale data:   Vulnerable: Clear CPU buffers attempted, no mic\r\n",
      "                                 rocode; SMT Host state unknown\r\n",
      "Vulnerability Retbleed:          Mitigation; IBRS\r\n",
      "Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled v\r\n",
      "                                 ia prctl and seccomp\r\n",
      "Vulnerability Spectre v1:        Mitigation; usercopy/swapgs barriers and __user\r\n",
      "                                  pointer sanitization\r\n",
      "Vulnerability Spectre v2:        Mitigation; IBRS, IBPB conditional, RSB filling\r\n",
      "                                 , PBRSB-eIBRS Not affected\r\n",
      "Vulnerability Srbds:             Not affected\r\n",
      "Vulnerability Tsx async abort:   Mitigation; Clear CPU buffers; SMT Host state u\r\n",
      "                                 nknown\r\n",
      "Flags:                           fpu vme de pse tsc msr pae mce cx8 apic sep mtr\r\n",
      "                                 r pge mca cmov pat pse36 clflush mmx fxsr sse s\r\n",
      "                                 se2 ss ht syscall nx pdpe1gb rdtscp lm constant\r\n",
      "                                 _tsc rep_good nopl xtopology nonstop_tsc cpuid \r\n",
      "                                 tsc_known_freq pni pclmulqdq ssse3 fma cx16 pci\r\n",
      "                                 d sse4_1 sse4_2 x2apic movbe popcnt aes xsave a\r\n",
      "                                 vx f16c rdrand hypervisor lahf_lm abm 3dnowpref\r\n",
      "                                 etch invpcid_single pti ssbd ibrs ibpb stibp fs\r\n",
      "                                 gsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms \r\n",
      "                                 invpcid rtm mpx avx512f avx512dq rdseed adx sma\r\n",
      "                                 p clflushopt clwb avx512cd avx512bw avx512vl xs\r\n",
      "                                 aveopt xsavec xgetbv1 xsaves arat md_clear arch\r\n",
      "                                 _capabilities\r\n",
      "Wed Feb 15 10:26:40 2023       \r\n",
      "+-----------------------------------------------------------------------------+\r\n",
      "| NVIDIA-SMI 470.82.01    Driver Version: 470.82.01    CUDA Version: 11.4     |\r\n",
      "|-------------------------------+----------------------+----------------------+\r\n",
      "| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |\r\n",
      "| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |\r\n",
      "|                               |                      |               MIG M. |\r\n",
      "|===============================+======================+======================|\r\n",
      "|   0  Tesla P100-PCIE...  Off  | 00000000:00:04.0 Off |                    0 |\r\n",
      "| N/A   33C    P0    28W / 250W |      0MiB / 16280MiB |      0%      Default |\r\n",
      "|                               |                      |                  N/A |\r\n",
      "+-------------------------------+----------------------+----------------------+\r\n",
      "                                                                               \r\n",
      "+-----------------------------------------------------------------------------+\r\n",
      "| Processes:                                                                  |\r\n",
      "|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |\r\n",
      "|        ID   ID                                                   Usage      |\r\n",
      "|=============================================================================|\r\n",
      "|  No running processes found                                                 |\r\n",
      "+-----------------------------------------------------------------------------+\r\n"
     ]
    }
   ],
   "source": [
    "#Let us check the Google COlab resources - 1GPU and 2 CPU with 1TB HDD and 12GB RAM \n",
    "!lscpu\n",
    "!nvidia-smi"
   ]
  },
  {
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     "text": [
      "--2023-02-15 10:26:41--  https://ftp.gromacs.org/gromacs/gromacs-2023.tar.gz\r\n",
      "Resolving ftp.gromacs.org (ftp.gromacs.org)... 130.237.11.165, 2001:6b0:1:1191:216:3eff:fec7:6e30\r\n",
      "Connecting to ftp.gromacs.org (ftp.gromacs.org)|130.237.11.165|:443... connected.\r\n",
      "HTTP request sent, awaiting response... 200 OK\r\n",
      "Length: 41863526 (40M) [application/x-gzip]\r\n",
      "Saving to: ‘gromacs-2023.tar.gz’\r\n",
      "\r\n",
      "gromacs-2023.tar.gz 100%[===================>]  39.92M  10.3MB/s    in 5.8s    \r\n",
      "\r\n",
      "2023-02-15 10:26:48 (6.93 MB/s) - ‘gromacs-2023.tar.gz’ saved [41863526/41863526]\r\n",
      "\r\n"
     ]
    }
   ],
   "source": [
    "!wget https://ftp.gromacs.org/gromacs/gromacs-2023.tar.gz"
   ]
  },
  {
   "cell_type": "code",
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     "text": [
      "--2023-02-15 10:26:49--  https://github.com/Kitware/CMake/releases/download/v3.20.0-rc1/cmake-3.20.0-rc1.tar.gz\r\n",
      "Resolving github.com (github.com)... 140.82.113.3\r\n",
      "Connecting to github.com (github.com)|140.82.113.3|:443... connected.\r\n",
      "HTTP request sent, awaiting response... 302 Found\r\n",
      "Location: https://objects.githubusercontent.com/github-production-release-asset-2e65be/537699/06e77180-705e-11eb-8500-bec51c1075dc?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20230215%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20230215T102650Z&X-Amz-Expires=300&X-Amz-Signature=76a8f8290f4832be32cc4521dd0f910f184aabc74b190cca82a15bc97741f071&X-Amz-SignedHeaders=host&actor_id=0&key_id=0&repo_id=537699&response-content-disposition=attachment%3B%20filename%3Dcmake-3.20.0-rc1.tar.gz&response-content-type=application%2Foctet-stream [following]\r\n",
      "--2023-02-15 10:26:50--  https://objects.githubusercontent.com/github-production-release-asset-2e65be/537699/06e77180-705e-11eb-8500-bec51c1075dc?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20230215%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20230215T102650Z&X-Amz-Expires=300&X-Amz-Signature=76a8f8290f4832be32cc4521dd0f910f184aabc74b190cca82a15bc97741f071&X-Amz-SignedHeaders=host&actor_id=0&key_id=0&repo_id=537699&response-content-disposition=attachment%3B%20filename%3Dcmake-3.20.0-rc1.tar.gz&response-content-type=application%2Foctet-stream\r\n",
      "Resolving objects.githubusercontent.com (objects.githubusercontent.com)... 185.199.110.133, 185.199.108.133, 185.199.109.133, ...\r\n",
      "Connecting to objects.githubusercontent.com (objects.githubusercontent.com)|185.199.110.133|:443... connected.\r\n",
      "HTTP request sent, awaiting response... 200 OK\r\n",
      "Length: 9425531 (9.0M) [application/octet-stream]\r\n",
      "Saving to: ‘cmake-3.20.0-rc1.tar.gz’\r\n",
      "\r\n",
      "cmake-3.20.0-rc1.ta 100%[===================>]   8.99M  3.14MB/s    in 2.9s    \r\n",
      "\r\n",
      "2023-02-15 10:26:53 (3.14 MB/s) - ‘cmake-3.20.0-rc1.tar.gz’ saved [9425531/9425531]\r\n",
      "\r\n"
     ]
    }
   ],
   "source": [
    "!wget https://github.com/Kitware/CMake/releases/download/v3.20.0-rc1/cmake-3.20.0-rc1.tar.gz\n",
    "!tar xfz cmake-3.20.0-rc1.tar.gz"
   ]
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     "text": [
      "--2023-02-15 10:26:56--  https://ftp.gromacs.org/gromacs/gromacs-2023.tar.gz\r\n",
      "Resolving ftp.gromacs.org (ftp.gromacs.org)... 130.237.11.165, 2001:6b0:1:1191:216:3eff:fec7:6e30\r\n",
      "Connecting to ftp.gromacs.org (ftp.gromacs.org)|130.237.11.165|:443... connected.\r\n",
      "HTTP request sent, awaiting response... 200 OK\r\n",
      "Length: 41863526 (40M) [application/x-gzip]\r\n",
      "Saving to: ‘gromacs-2023.tar.gz.1’\r\n",
      "\r\n",
      "gromacs-2023.tar.gz 100%[===================>]  39.92M  10.3MB/s    in 5.7s    \r\n",
      "\r\n",
      "2023-02-15 10:27:03 (6.96 MB/s) - ‘gromacs-2023.tar.gz.1’ saved [41863526/41863526]\r\n",
      "\r\n",
      "/bin/bash: line 0: cd: /content/gromacs-2023: No such file or directory\r\n",
      "mkdir: cannot create directory ‘/content/gromacs-2023/build’: No such file or directory\r\n",
      "/bin/bash: line 0: cd: /content/gromacs-2023/build: No such file or directory\r\n",
      "\u001b[0mCMake Error: The source directory \"/kaggle\" does not appear to contain CMakeLists.txt.\r\n",
      "Specify --help for usage, or press the help button on the CMake GUI.\u001b[0m\r\n",
      "make: *** No rule to make target '2'.  Stop.\r\n",
      "make: *** No rule to make target 'install'.  Stop.\r\n",
      "/bin/bash: /usr/local/gromacs/bin/GMXRC: No such file or directory\r\n"
     ]
    }
   ],
   "source": [
    "!wget https://ftp.gromacs.org/gromacs/gromacs-2023.tar.gz\n",
    "!tar xfz gromacs-2023.tar.gz\n",
    "!cd /content/gromacs-2023\n",
    "!mkdir /content/gromacs-2023/build\n",
    "!cd /content/gromacs-2023/build\n",
    "!cmake .. -DGMX_BUILD_OWN_FFTW=ON -DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=CUDA\n",
    "!make - 2\n",
    "!make install\n",
    "!source /usr/local/gromacs/bin/GMXRC"
   ]
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  {
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  },
  {
   "cell_type": "markdown",
   "id": "4b23d386",
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   "source": [
    "# 1. Intro\n"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "0895cfab",
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   "source": [
    "Kaggle based on [UNIX-like operation system](https://en.wikipedia.org/wiki/Unix-like). The most advantage of those systems is fast, understandable and power terminal commands.\n",
    "\n",
    "Each command performs a specific task but does it very well.\n",
    "\n",
    "In this notebook I will show you 10 basic command that make your life easier. For example I will use my own dataset 'Airplane Tickets from Moscow, 2022'.\n"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bc5385da",
   "metadata": {
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    "tags": []
   },
   "source": [
    "## 2. TOP-10 basic commands"
   ]
  },
  {
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   "source": [
    "### LS\n",
    "\n",
    "*ls* function lists files and directories, and their associated metadata, such as file size, ownership, and modification time. With no options, ls lists the files contained in the current directory, sorting them alphabetically."
   ]
  },
  {
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   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "IATA_Airlines.json  IATA_Airports.json  ticket_dataset_RusAirports.json\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/input/airplane-tickets-from-moscow-2022/"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2702ab96",
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   "source": [
    "*-l* option use a long listing format\n",
    "\n",
    "*-c* option show ctime and sort files by name"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "db6eaa22",
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     "iopub.status.busy": "2023-02-15T10:27:15.843370Z",
     "iopub.status.idle": "2023-02-15T10:27:16.960444Z",
     "shell.execute_reply": "2023-02-15T10:27:16.959603Z",
     "shell.execute_reply.started": "2023-02-15T10:06:22.333136Z"
    },
    "papermill": {
     "duration": 1.38443,
     "end_time": "2023-02-15T10:27:16.960590",
     "exception": false,
     "start_time": "2023-02-15T10:27:15.576160",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "total 22996\r\n",
      "-rw-r--r-- 1 nobody nogroup    90457 Feb 15 10:26 IATA_Airlines.json\r\n",
      "-rw-r--r-- 1 nobody nogroup  1077656 Feb 15 10:26 IATA_Airports.json\r\n",
      "-rw-r--r-- 1 nobody nogroup 22369136 Feb 15 10:26 ticket_dataset_RusAirports.json\r\n"
     ]
    }
   ],
   "source": [
    "ls -cl /kaggle/input/airplane-tickets-from-moscow-2022/"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "54d6c4f8",
   "metadata": {
    "papermill": {
     "duration": 0.066397,
     "end_time": "2023-02-15T10:27:17.092975",
     "exception": false,
     "start_time": "2023-02-15T10:27:17.026578",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## CD\n",
    "\n",
    "*cd* is among the commands you use most often on the command line. It changes your working directory. Use it to move around in the hierarchy of your file system."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "8330e7b2",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:17.231266Z",
     "iopub.status.busy": "2023-02-15T10:27:17.230402Z",
     "iopub.status.idle": "2023-02-15T10:27:17.234030Z",
     "shell.execute_reply": "2023-02-15T10:27:17.234541Z",
     "shell.execute_reply.started": "2023-02-15T10:06:23.474008Z"
    },
    "papermill": {
     "duration": 0.076374,
     "end_time": "2023-02-15T10:27:17.234713",
     "exception": false,
     "start_time": "2023-02-15T10:27:17.158339",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "/kaggle\n"
     ]
    }
   ],
   "source": [
    "cd /kaggle/"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "d43f5ebb",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:17.374424Z",
     "iopub.status.busy": "2023-02-15T10:27:17.369048Z",
     "iopub.status.idle": "2023-02-15T10:27:18.306427Z",
     "shell.execute_reply": "2023-02-15T10:27:18.305836Z",
     "shell.execute_reply.started": "2023-02-15T10:06:23.488468Z"
    },
    "papermill": {
     "duration": 1.006394,
     "end_time": "2023-02-15T10:27:18.306569",
     "exception": false,
     "start_time": "2023-02-15T10:27:17.300175",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\u001b[0m\u001b[01;34minput\u001b[0m/  \u001b[01;34mlib\u001b[0m/  \u001b[01;34msrc\u001b[0m/  \u001b[01;34mworking\u001b[0m/\r\n"
     ]
    }
   ],
   "source": [
    "ls ./"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2ca4d923",
   "metadata": {
    "papermill": {
     "duration": 0.065839,
     "end_time": "2023-02-15T10:27:18.438673",
     "exception": false,
     "start_time": "2023-02-15T10:27:18.372834",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "We can use *cd ..* to come back to previous directory "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "c7b0a321",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:18.577994Z",
     "iopub.status.busy": "2023-02-15T10:27:18.577143Z",
     "iopub.status.idle": "2023-02-15T10:27:18.580930Z",
     "shell.execute_reply": "2023-02-15T10:27:18.581453Z",
     "shell.execute_reply.started": "2023-02-15T10:06:24.667460Z"
    },
    "papermill": {
     "duration": 0.076882,
     "end_time": "2023-02-15T10:27:18.581666",
     "exception": false,
     "start_time": "2023-02-15T10:27:18.504784",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "/\n"
     ]
    }
   ],
   "source": [
    "cd .."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "3d9ecd33",
   "metadata": {
    "papermill": {
     "duration": 0.065524,
     "end_time": "2023-02-15T10:27:18.714137",
     "exception": false,
     "start_time": "2023-02-15T10:27:18.648613",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "### MKDIR\n",
    "\n",
    "*mkdir* command creates new directories"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "9dc1c493",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:18.853315Z",
     "iopub.status.busy": "2023-02-15T10:27:18.852373Z",
     "iopub.status.idle": "2023-02-15T10:27:19.797835Z",
     "shell.execute_reply": "2023-02-15T10:27:19.798276Z",
     "shell.execute_reply.started": "2023-02-15T10:06:24.679334Z"
    },
    "papermill": {
     "duration": 1.016471,
     "end_time": "2023-02-15T10:27:19.798446",
     "exception": false,
     "start_time": "2023-02-15T10:27:18.781975",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "mkdir /kaggle/models"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "id": "f0af6b10",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:19.943204Z",
     "iopub.status.busy": "2023-02-15T10:27:19.938708Z",
     "iopub.status.idle": "2023-02-15T10:27:20.900355Z",
     "shell.execute_reply": "2023-02-15T10:27:20.900847Z",
     "shell.execute_reply.started": "2023-02-15T10:06:25.791908Z"
    },
    "papermill": {
     "duration": 1.035267,
     "end_time": "2023-02-15T10:27:20.901080",
     "exception": false,
     "start_time": "2023-02-15T10:27:19.865813",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\u001b[0m\u001b[01;34minput\u001b[0m/  \u001b[01;34mlib\u001b[0m/  \u001b[01;34mmodels\u001b[0m/  \u001b[01;34msrc\u001b[0m/  \u001b[01;34mworking\u001b[0m/\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "045ab79a",
   "metadata": {
    "papermill": {
     "duration": 0.090282,
     "end_time": "2023-02-15T10:27:21.061090",
     "exception": false,
     "start_time": "2023-02-15T10:27:20.970808",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "use *-p* options to auttomatically creates all directories from path/kaggle/Documents/pdf if it doesn't already exist."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "4a0d7a75",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:21.210485Z",
     "iopub.status.busy": "2023-02-15T10:27:21.209484Z",
     "iopub.status.idle": "2023-02-15T10:27:22.150489Z",
     "shell.execute_reply": "2023-02-15T10:27:22.150009Z",
     "shell.execute_reply.started": "2023-02-15T10:06:26.899460Z"
    },
    "papermill": {
     "duration": 1.019365,
     "end_time": "2023-02-15T10:27:22.150630",
     "exception": false,
     "start_time": "2023-02-15T10:27:21.131265",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "mkdir -p /kaggle/Documents/pdf"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "e90d8277",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:22.291674Z",
     "iopub.status.busy": "2023-02-15T10:27:22.290702Z",
     "iopub.status.idle": "2023-02-15T10:27:23.230513Z",
     "shell.execute_reply": "2023-02-15T10:27:23.229739Z",
     "shell.execute_reply.started": "2023-02-15T10:06:28.001542Z"
    },
    "papermill": {
     "duration": 1.011816,
     "end_time": "2023-02-15T10:27:23.230649",
     "exception": false,
     "start_time": "2023-02-15T10:27:22.218833",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\u001b[0m\u001b[01;34mDocuments\u001b[0m/  \u001b[01;34minput\u001b[0m/  \u001b[01;34mlib\u001b[0m/  \u001b[01;34mmodels\u001b[0m/  \u001b[01;34msrc\u001b[0m/  \u001b[01;34mworking\u001b[0m/\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "48bae687",
   "metadata": {
    "papermill": {
     "duration": 0.066691,
     "end_time": "2023-02-15T10:27:23.366041",
     "exception": false,
     "start_time": "2023-02-15T10:27:23.299350",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "### CP\n",
    "\n",
    "*cp* command copies file from one to another directories. If the destination file name already exists, its data is destroyed without asking. \n",
    "\n",
    "If you want to be prompted for confirmation before files are overwritten, use the -i (interactive) option."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "1d5d382a",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:23.511106Z",
     "iopub.status.busy": "2023-02-15T10:27:23.504573Z",
     "iopub.status.idle": "2023-02-15T10:27:24.453785Z",
     "shell.execute_reply": "2023-02-15T10:27:24.452545Z",
     "shell.execute_reply.started": "2023-02-15T10:06:29.096547Z"
    },
    "papermill": {
     "duration": 1.02143,
     "end_time": "2023-02-15T10:27:24.453932",
     "exception": false,
     "start_time": "2023-02-15T10:27:23.432502",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "cp /kaggle/input/airplane-tickets-from-moscow-2022/IATA_Airlines.json /kaggle/models"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "5b594bb5",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:24.598425Z",
     "iopub.status.busy": "2023-02-15T10:27:24.596957Z",
     "iopub.status.idle": "2023-02-15T10:27:25.524337Z",
     "shell.execute_reply": "2023-02-15T10:27:25.523809Z",
     "shell.execute_reply.started": "2023-02-15T10:06:30.205186Z"
    },
    "papermill": {
     "duration": 1.002542,
     "end_time": "2023-02-15T10:27:25.524476",
     "exception": false,
     "start_time": "2023-02-15T10:27:24.521934",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "IATA_Airlines.json\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/models"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "264b4771",
   "metadata": {
    "papermill": {
     "duration": 0.067004,
     "end_time": "2023-02-15T10:27:25.659812",
     "exception": false,
     "start_time": "2023-02-15T10:27:25.592808",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## MV\n",
    "\n",
    "*mv* command moves and renames files and directories."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "40332183",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:25.804965Z",
     "iopub.status.busy": "2023-02-15T10:27:25.800535Z",
     "iopub.status.idle": "2023-02-15T10:27:26.842925Z",
     "shell.execute_reply": "2023-02-15T10:27:26.841622Z",
     "shell.execute_reply.started": "2023-02-15T10:06:31.301849Z"
    },
    "papermill": {
     "duration": 1.11534,
     "end_time": "2023-02-15T10:27:26.843074",
     "exception": false,
     "start_time": "2023-02-15T10:27:25.727734",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "mv /kaggle/models/IATA_Airlines.json /kaggle/Documents/"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "13cd46fa",
   "metadata": {
    "papermill": {
     "duration": 0.067321,
     "end_time": "2023-02-15T10:27:26.978706",
     "exception": false,
     "start_time": "2023-02-15T10:27:26.911385",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "Move *IATA_Airlines.json* from models to Documents"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "875b80ce",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:27.119222Z",
     "iopub.status.busy": "2023-02-15T10:27:27.118247Z",
     "iopub.status.idle": "2023-02-15T10:27:28.047854Z",
     "shell.execute_reply": "2023-02-15T10:27:28.046636Z",
     "shell.execute_reply.started": "2023-02-15T10:06:32.412467Z"
    },
    "papermill": {
     "duration": 1.001513,
     "end_time": "2023-02-15T10:27:28.047998",
     "exception": false,
     "start_time": "2023-02-15T10:27:27.046485",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "ls /kaggle/models"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "id": "d10d0419",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:28.190207Z",
     "iopub.status.busy": "2023-02-15T10:27:28.189259Z",
     "iopub.status.idle": "2023-02-15T10:27:29.125004Z",
     "shell.execute_reply": "2023-02-15T10:27:29.124237Z",
     "shell.execute_reply.started": "2023-02-15T10:06:33.512810Z"
    },
    "papermill": {
     "duration": 1.009047,
     "end_time": "2023-02-15T10:27:29.125151",
     "exception": false,
     "start_time": "2023-02-15T10:27:28.116104",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "IATA_Airlines.json  \u001b[0m\u001b[01;34mpdf\u001b[0m/\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/Documents/"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "363212bd",
   "metadata": {
    "papermill": {
     "duration": 0.067696,
     "end_time": "2023-02-15T10:27:29.262318",
     "exception": false,
     "start_time": "2023-02-15T10:27:29.194622",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "And next move *Documents* directory to working"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "aadfb390",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:29.404114Z",
     "iopub.status.busy": "2023-02-15T10:27:29.403132Z",
     "iopub.status.idle": "2023-02-15T10:27:30.370737Z",
     "shell.execute_reply": "2023-02-15T10:27:30.370229Z",
     "shell.execute_reply.started": "2023-02-15T10:06:34.619200Z"
    },
    "papermill": {
     "duration": 1.040287,
     "end_time": "2023-02-15T10:27:30.370878",
     "exception": false,
     "start_time": "2023-02-15T10:27:29.330591",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "mv /kaggle/Documents/ /kaggle/working/"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "c8c042ba",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:30.513226Z",
     "iopub.status.busy": "2023-02-15T10:27:30.512255Z",
     "iopub.status.idle": "2023-02-15T10:27:31.439615Z",
     "shell.execute_reply": "2023-02-15T10:27:31.439057Z",
     "shell.execute_reply.started": "2023-02-15T10:06:35.739771Z"
    },
    "papermill": {
     "duration": 1.00065,
     "end_time": "2023-02-15T10:27:31.439776",
     "exception": false,
     "start_time": "2023-02-15T10:27:30.439126",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\u001b[0m\u001b[01;34mDocuments\u001b[0m/          cmake-3.20.0-rc1.tar.gz  gromacs-2023.tar.gz.1\r\n",
      "__notebook__.ipynb  \u001b[01;34mgromacs-2023\u001b[0m/\r\n",
      "\u001b[01;34mcmake-3.20.0-rc1\u001b[0m/   gromacs-2023.tar.gz\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/working/ "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d9ced29d",
   "metadata": {
    "papermill": {
     "duration": 0.068289,
     "end_time": "2023-02-15T10:27:31.576327",
     "exception": false,
     "start_time": "2023-02-15T10:27:31.508038",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "As we can see *mv* command move directory with files and directories inside it."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "b6dc7305",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:31.722538Z",
     "iopub.status.busy": "2023-02-15T10:27:31.719713Z",
     "iopub.status.idle": "2023-02-15T10:27:32.654200Z",
     "shell.execute_reply": "2023-02-15T10:27:32.653532Z",
     "shell.execute_reply.started": "2023-02-15T10:06:36.832731Z"
    },
    "papermill": {
     "duration": 1.009345,
     "end_time": "2023-02-15T10:27:32.654340",
     "exception": false,
     "start_time": "2023-02-15T10:27:31.644995",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "IATA_Airlines.json  \u001b[0m\u001b[01;34mpdf\u001b[0m/\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/working/Documents"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "82e51ac2",
   "metadata": {
    "papermill": {
     "duration": 0.068191,
     "end_time": "2023-02-15T10:27:32.791011",
     "exception": false,
     "start_time": "2023-02-15T10:27:32.722820",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## RM\n",
    "\n",
    "*rm* command removes each file specified on the command line. By default, it does not remove directories."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "21d6bdf3",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:32.933882Z",
     "iopub.status.busy": "2023-02-15T10:27:32.932988Z",
     "iopub.status.idle": "2023-02-15T10:27:32.937088Z",
     "shell.execute_reply": "2023-02-15T10:27:32.937783Z",
     "shell.execute_reply.started": "2023-02-15T10:06:37.929430Z"
    },
    "papermill": {
     "duration": 0.078778,
     "end_time": "2023-02-15T10:27:32.937962",
     "exception": false,
     "start_time": "2023-02-15T10:27:32.859184",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "/kaggle/working/Documents\n"
     ]
    }
   ],
   "source": [
    "cd /kaggle/working/Documents"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "9a245a22",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:33.089935Z",
     "iopub.status.busy": "2023-02-15T10:27:33.088642Z",
     "iopub.status.idle": "2023-02-15T10:27:34.038303Z",
     "shell.execute_reply": "2023-02-15T10:27:34.037377Z",
     "shell.execute_reply.started": "2023-02-15T10:06:37.938881Z"
    },
    "papermill": {
     "duration": 1.030824,
     "end_time": "2023-02-15T10:27:34.038448",
     "exception": false,
     "start_time": "2023-02-15T10:27:33.007624",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "rm IATA_Airlines.json "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "f5bdb4a3",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:34.181996Z",
     "iopub.status.busy": "2023-02-15T10:27:34.181005Z",
     "iopub.status.idle": "2023-02-15T10:27:35.119002Z",
     "shell.execute_reply": "2023-02-15T10:27:35.118480Z",
     "shell.execute_reply.started": "2023-02-15T10:06:39.049473Z"
    },
    "papermill": {
     "duration": 1.011057,
     "end_time": "2023-02-15T10:27:35.119144",
     "exception": false,
     "start_time": "2023-02-15T10:27:34.108087",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\u001b[0m\u001b[01;34mpdf\u001b[0m/\r\n"
     ]
    }
   ],
   "source": [
    "ls ./"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "84e1e3c1",
   "metadata": {
    "papermill": {
     "duration": 0.068641,
     "end_time": "2023-02-15T10:27:35.257408",
     "exception": false,
     "start_time": "2023-02-15T10:27:35.188767",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "When rm is executed with the -r or -R options, it recursively deletes any matching directories, their subdirectories, and all files they contain. See removing directories below for details."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "9f277698",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:35.402120Z",
     "iopub.status.busy": "2023-02-15T10:27:35.401129Z",
     "iopub.status.idle": "2023-02-15T10:27:35.405627Z",
     "shell.execute_reply": "2023-02-15T10:27:35.405070Z",
     "shell.execute_reply.started": "2023-02-15T10:06:40.152574Z"
    },
    "papermill": {
     "duration": 0.07849,
     "end_time": "2023-02-15T10:27:35.405792",
     "exception": false,
     "start_time": "2023-02-15T10:27:35.327302",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "/kaggle/working\n"
     ]
    }
   ],
   "source": [
    "cd /kaggle/working/"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "218d2c34",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:35.554334Z",
     "iopub.status.busy": "2023-02-15T10:27:35.549127Z",
     "iopub.status.idle": "2023-02-15T10:27:36.484688Z",
     "shell.execute_reply": "2023-02-15T10:27:36.484192Z",
     "shell.execute_reply.started": "2023-02-15T10:06:40.163409Z"
    },
    "papermill": {
     "duration": 1.009493,
     "end_time": "2023-02-15T10:27:36.484831",
     "exception": false,
     "start_time": "2023-02-15T10:27:35.475338",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "rm -r Documents"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "15af6714",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:36.631596Z",
     "iopub.status.busy": "2023-02-15T10:27:36.630625Z",
     "iopub.status.idle": "2023-02-15T10:27:37.641785Z",
     "shell.execute_reply": "2023-02-15T10:27:37.641051Z",
     "shell.execute_reply.started": "2023-02-15T10:06:41.271473Z"
    },
    "papermill": {
     "duration": 1.085597,
     "end_time": "2023-02-15T10:27:37.641952",
     "exception": false,
     "start_time": "2023-02-15T10:27:36.556355",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "__notebook__.ipynb  cmake-3.20.0-rc1.tar.gz  gromacs-2023.tar.gz\r\n",
      "\u001b[0m\u001b[01;34mcmake-3.20.0-rc1\u001b[0m/   \u001b[01;34mgromacs-2023\u001b[0m/            gromacs-2023.tar.gz.1\r\n"
     ]
    }
   ],
   "source": [
    "ls"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "81f38c12",
   "metadata": {
    "papermill": {
     "duration": 0.08098,
     "end_time": "2023-02-15T10:27:37.829613",
     "exception": false,
     "start_time": "2023-02-15T10:27:37.748633",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## PWD\n",
    "\n",
    "*pwd* outputs the name of the working directory."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "5c3bd731",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:37.979049Z",
     "iopub.status.busy": "2023-02-15T10:27:37.978304Z",
     "iopub.status.idle": "2023-02-15T10:27:37.981518Z",
     "shell.execute_reply": "2023-02-15T10:27:37.981942Z",
     "shell.execute_reply.started": "2023-02-15T10:06:42.384224Z"
    },
    "papermill": {
     "duration": 0.081463,
     "end_time": "2023-02-15T10:27:37.982092",
     "exception": false,
     "start_time": "2023-02-15T10:27:37.900629",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'/kaggle/working'"
      ]
     },
     "execution_count": 29,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "pwd"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "9c43c2b9",
   "metadata": {
    "papermill": {
     "duration": 0.070022,
     "end_time": "2023-02-15T10:27:38.121296",
     "exception": false,
     "start_time": "2023-02-15T10:27:38.051274",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## GREP\n",
    "\n",
    "*grep* command processes text line by line, and prints any lines which match a specified pattern."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e7b1fecf",
   "metadata": {
    "papermill": {
     "duration": 0.069977,
     "end_time": "2023-02-15T10:27:38.262026",
     "exception": false,
     "start_time": "2023-02-15T10:27:38.192049",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "You can use *grep* command with *ls* to show only files starting on 'IATA'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "b573d58d",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:38.409363Z",
     "iopub.status.busy": "2023-02-15T10:27:38.408356Z",
     "iopub.status.idle": "2023-02-15T10:27:39.348519Z",
     "shell.execute_reply": "2023-02-15T10:27:39.347616Z",
     "shell.execute_reply.started": "2023-02-15T10:06:42.397155Z"
    },
    "papermill": {
     "duration": 1.015571,
     "end_time": "2023-02-15T10:27:39.348683",
     "exception": false,
     "start_time": "2023-02-15T10:27:38.333112",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "IATA_Airlines.json\r\n",
      "IATA_Airports.json\r\n"
     ]
    }
   ],
   "source": [
    "!ls /kaggle/input/airplane-tickets-from-moscow-2022/ | grep 'IATA*'"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "3ef3a164",
   "metadata": {
    "papermill": {
     "duration": 0.069603,
     "end_time": "2023-02-15T10:27:39.489446",
     "exception": false,
     "start_time": "2023-02-15T10:27:39.419843",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "Sign '|' means that command *grep* start after *ls* command. And if *ls* command end successfully"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ec760e92",
   "metadata": {
    "papermill": {
     "duration": 0.069548,
     "end_time": "2023-02-15T10:27:39.628779",
     "exception": false,
     "start_time": "2023-02-15T10:27:39.559231",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## CURL\n",
    "\n",
    "*curl* command transfers data to or from a network server, using one of the supported protocols (HTTP, HTTPS, FTP, FTPS, SCP, SFTP, TFTP, DICT, TELNET, LDAP or FILE). It is designed to work without user interaction, so it is ideal for use in a shell script."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "62196979",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:39.775355Z",
     "iopub.status.busy": "2023-02-15T10:27:39.774308Z",
     "iopub.status.idle": "2023-02-15T10:27:41.690559Z",
     "shell.execute_reply": "2023-02-15T10:27:41.690061Z",
     "shell.execute_reply.started": "2023-02-15T10:06:43.525220Z"
    },
    "papermill": {
     "duration": 1.992607,
     "end_time": "2023-02-15T10:27:41.690716",
     "exception": false,
     "start_time": "2023-02-15T10:27:39.698109",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current\r\n",
      "                                 Dload  Upload   Total   Spent    Left  Speed\r\n",
      "100  5969  100  5969    0     0   6837      0 --:--:-- --:--:-- --:--:--  6829\r\n"
     ]
    }
   ],
   "source": [
    "!curl -O 'https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "35253642",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:41.836809Z",
     "iopub.status.busy": "2023-02-15T10:27:41.835876Z",
     "iopub.status.idle": "2023-02-15T10:27:42.776118Z",
     "shell.execute_reply": "2023-02-15T10:27:42.775444Z",
     "shell.execute_reply.started": "2023-02-15T10:06:44.904806Z"
    },
    "papermill": {
     "duration": 1.013899,
     "end_time": "2023-02-15T10:27:42.776266",
     "exception": false,
     "start_time": "2023-02-15T10:27:41.762367",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "__notebook__.ipynb       googlelogo_color_272x92dp.png  gromacs-2023.tar.gz.1\r\n",
      "\u001b[0m\u001b[01;34mcmake-3.20.0-rc1\u001b[0m/        \u001b[01;34mgromacs-2023\u001b[0m/\r\n",
      "cmake-3.20.0-rc1.tar.gz  gromacs-2023.tar.gz\r\n"
     ]
    }
   ],
   "source": [
    "ls /kaggle/working/"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2556d6f6",
   "metadata": {
    "papermill": {
     "duration": 0.072155,
     "end_time": "2023-02-15T10:27:42.919771",
     "exception": false,
     "start_time": "2023-02-15T10:27:42.847616",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## CAT\n",
    "*cat* command reads data from files, and outputs their contents. It is the simplest way to display the contents of a file at the command line."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "c05be7eb",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-02-15T10:27:43.067832Z",
     "iopub.status.busy": "2023-02-15T10:27:43.066865Z",
     "iopub.status.idle": "2023-02-15T10:27:44.823354Z",
     "shell.execute_reply": "2023-02-15T10:27:44.822522Z",
     "shell.execute_reply.started": "2023-02-15T10:06:46.042617Z"
    },
    "papermill": {
     "duration": 1.832873,
     "end_time": "2023-02-15T10:27:44.823490",
     "exception": false,
     "start_time": "2023-02-15T10:27:42.990617",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "cat: /kaggle/working/robots.txt: No such file or directory\r\n",
      "  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current\r\n",
      "                                 Dload  Upload   Total   Spent    Left  Speed\r\n",
      "100  7240  100  7240    0     0   9551      0 --:--:-- --:--:-- --:--:--  9538\r\n"
     ]
    }
   ],
   "source": [
    "!curl -O http://www.google.com/robots.txt | cat /kaggle/working/robots.txt"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "b3b781ed",
   "metadata": {
    "papermill": {
     "duration": 0.071991,
     "end_time": "2023-02-15T10:27:44.967900",
     "exception": false,
     "start_time": "2023-02-15T10:27:44.895909",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "### IMPORTTANT\n",
    "\n",
    "Some python packages might have the same name as Linux-command. For example, *curl*.\n",
    "\n",
    "You should write exclamation point(!) before command to say Kaggle use Linux-command.\n",
    "\n",
    "`!curl`"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e3733b8a",
   "metadata": {
    "papermill": {
     "duration": 0.071058,
     "end_time": "2023-02-15T10:27:45.112221",
     "exception": false,
     "start_time": "2023-02-15T10:27:45.041163",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "## 3. Сonclusion"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "89cf23dd",
   "metadata": {
    "papermill": {
     "duration": 0.071554,
     "end_time": "2023-02-15T10:27:45.255821",
     "exception": false,
     "start_time": "2023-02-15T10:27:45.184267",
     "status": "completed"
    },
    "tags": []
   },
   "source": [
    "If you interesting to read more about Linux-command I recommend to read book (The Linux Command Line by William Shotts)[https://linuxcommand.org/tlcl.php]\n",
    "\n",
    "I hope that you can find something new.\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2bddfda6",
   "metadata": {
    "papermill": {
     "duration": 0.071031,
     "end_time": "2023-02-15T10:27:45.398973",
     "exception": false,
     "start_time": "2023-02-15T10:27:45.327942",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.7.12"
  },
  "papermill": {
   "default_parameters": {},
   "duration": 75.496915,
   "end_time": "2023-02-15T10:27:45.981274",
   "environment_variables": {},
   "exception": null,
   "input_path": "__notebook__.ipynb",
   "output_path": "__notebook__.ipynb",
   "parameters": {},
   "start_time": "2023-02-15T10:26:30.484359",
   "version": "2.3.3"
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