Collection of useful bash functions.

Every script file includes the function and a test to show how it's meant to be used and check that the function really works. Just executing the script runs that test.

Check folder for extension

Checks a given folder for certain file extensions recursively. All found files with the extension(s) are returned in a global array; New files are appended to the array.

The check_folder_for_extension test folder contains of 13 files, 12 of them images, which should be found by the test.

function call:

check_folder_for_extension ./cffe_test "*.jpg *.JPG"

For multiple extensions (or other parts of the file name to match) space separate the list, like shown above.

Clean up

Cleaning up in a script and exit with a given exit code.

function call:

clean_up 0;

For testing the function call the script with:

clean_up.sh test