Bashscripts.org

I need a script that 1. tests if a file is executable 2. if it is, than exit with status 1, and if it is not, then chmod 777, and then run it with #! /bin/bash -x, and return it to the normal #! /bin/bash when done

you need to learn about test builtin.

You know how to check whether a file is executable.
You know how to exit from a script with a specific status.
You know how to use chmod(1) on a file.

Now, read the output of the set(0) builtin:


And learn how to execute a script with the -x switch, by yourself.