How to go to each directory and execute a command?

Question

How do I write a bash script that goes through each directory inside a parent_directory and executes a command in each directory

Answer 1

You can achieve this by piping and then using xargs. The catch is you need to use the -I flag which will replace the substring in your bash command with the substring passed by each of the xargs.

ls -d */ | xargs -I {} bash -c "cd '{}' && pwd"

You may want to replace pwd with whatever command you want to execute in each directory.