Ln, wc, which, stat command integration

[0xsambit]

Work on these commands and write test cases for all and check first if the project is running or not. If not, fix it first, then work on these

[0xsambit]

@me-hem you have to check for the other issues too and solve them when you run cargo build

[me-hem]

Sure

[0xsambit]

@me-hem Are you done with this ?