Which command is used to make a script file 'run_me.sh' executable?

This question is about making a script file called "run_me.sh" executable. This means allowing your computer to actually run the commands written inside the script.

The command used to do this is "chmod". "chmod" stands for "change mode." It's used to change the permissions of files, including scripts.

The correct answer is Option D: chmod +x run_me.sh

Here's why:
* chmod: This is the command to change permissions.
* +x: This part tells chmod to add execute permissions.
* run_me.sh: This is the name of the script file we want to make executable.

The other options are incorrect because they use incorrect flags:
* Option A: chmod +e run_me.sh - "+e" is not a valid flag for chmod.
* Option B: chmod +a run_me.sh - "+a" is not a valid flag for chmod.
* Option C: chmod +y run_me.sh - "+y" is not a valid flag for chmod.

So, to make your script "run_me.sh" executable, you would use the command: chmod +x run_me.sh