Changing access permissions using the chmod command (2024)

1. To give yourself permission to execute a file thatyou own:

 chmod u+x file1

This gives you execute permission for the file "file1".

2. To give members of your group permission toread a file:

 chmod g+r file2

This gives the group permission to read the file "file2".

3. To give read permission to everyone for aparticular type of file:

 chmod a+r *.pub

This gives everyone permission to read all fileswith the extension .pub.

4. To give the group write and execute permission:

 chmod g+wx $HOME/SCCS

This gives all members of the group permission to placefiles in the directory SCCS in your home directory. Theycan also list (ls) the contents of this directory.