Linux Command Directory
This directory of Linux commands is from Linux in a Nutshell, 5th Edition.
Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.
gpasswd [options] group
Change group password. May only be used by an administrator. Uses the encryption algorithm from the GROUP_CRYPT environment variable, falling back to the CRYPT variable set in /etc/default/passwd. If neither of those is set, DES is used.
Add a new group.
Delete a group.
Create members of the group.
Disable access to the group. Also prevent creation of a new group with the same name.
Remove the password entirely.