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Setting File Permissions - Exercise

Setting Shell Script Execute Permission

Objective: Use the chmod command to set execute permission on a script file.

Exercise Scoring

This exercise is worth 2 points.

Background

You should have an account on the DispersedNet Labs server or on a Unix/Linux system at your site. Log in so you can work at a command prompt. You will use the file named welcome that you created in the previous exercise.

Instructions

  1. Log in to your Unix account so you are working at a command prompt.
  2. View the current permissions on your script file:
% ls -l welcome
  1. Add execute permission for the file owner (you):
% chmod u+x welcome
  1. Verify that the execute bit was added:
% ls -l welcome

In the textbox below, paste the lines from your terminal that show the before-and-after permissions. Your submission should include at least:

  • One ls -l welcome output line before chmod
  • The chmod u+x welcome command
  • One ls -l welcome output line after chmod