Writing shell scripts

Shell scripts are very useful, in increasing productivity in various tasks. In particular they are great for tasks that involve working with multiple files and directories and using them in conjunction with CLIs (Command Line Interfaces). This posts provides some useful things to know when writing shell scripts.

• To call a function and store the value in a variable use the syntax: var=$(). This syntax will store stdout from the code in the parens in the variable, not the exit value of the function/process. The exit/return value will be stored in $?
• How to write a loop in Bash
• Bash get basename of filename or directory

Example bash script

    

#!/bin/bash

for file in imported_from_console/c752lfy3wvh73hfjlnplpqyapi/*.*;
    do 
        # echo "$file"
        VAR=$(basename "$file");
        echo $VAR;
        code -r --diff ./imported_from_console/c752lfy3wvh73hfjlnplpqyapi/$VAR ./imported_from_console/mkmffnhyp5d7blhj3mu7kz4zr4/$VAR;
done
    

References

• Scripting in zsh