Occurence of number - NixOs

[WolfyzDBois]

archi
bash: 10#1:0001 + 1: syntax error in expression (error token is ":0001 + 1")
 push
bash: 10#1:0001 + 1: syntax error in expression (error token is ":0001 + 1")
bash: 10#1:0001 + 1: syntax error in expression (error token is ":0001 + 1")
bash: syntax error near unexpected token `('

In NixOs prepa
Note : Archi tag was mannually add (achi-0001), and push with command

[WolfyzDBois]

function push() {
 36     if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
 37         echo -e "\033[0;31mError: This command must be executed in     a Git repository.\033[0m"
 38         return 1
 39     fi
 40
 41     last_push_num=$(git log --oneline | grep -Eo 'push-[0-9]{4}' |     grep -Eo '[0-9]{4}' | sort -n | tail -1)
 42     if [ -z "$last_push_num" ]; then
 43         next_push_num=1
 44     else
 45         next_push_num=$((10#$last_push_num + 1))
 46     fi
 47
 48     new_message=$(printf "push-%04d" "$next_push_num")
 49
 50     if ! git add -A; then
 51         echo -e "\033[0;31mError: Failed to add files with git add    .\033[0m"
 52         return 1
 53     fi
 54
 55     if ! git commit -m "$new_message"; then
 56         echo -e "\033[0;31mError: Failed to create commit.\033[0m"
 57         return 1
 58     fi
 59
 60     if ! git push; then
 61         echo -e "\033[0;31mError: Push to remote repository failed    .\033[0m"
 62         return 1
 63     fi
 64
 65    echo -e "\033[0;32mSuccess: Commit '$new_message' created and p    ushed successfully.\033[0m"
 66 }
 67
 68 function archi() {
 69     if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
 70         echo -e "\033[0;31mError: This command must be executed in     a Git repository.\033[0m"
 71         return 1
```bash