Adding file permissions

To add certain permissions to a file, use this command:

    % chmod who+value file...

• u to change the owner's (``user's'') permissions;
• g to change group permissions;
• o to change world (``other'') permissions; or
• a to change all permissions: owner, group and world.

• r for read permission;
• w for write permission; and
• x for execute permission.

For example:

• To add world read permission for file foo:

          % chmod o+r foo

• To add read and execute permissions for the owner and the group for file bar:

          % chmod ug+rx bar

Last updated: UT
URL: http://www.nmt.edu/tcc/help/unix/chmodplus.html