Is there a command to list all Unix group names

Question

I know there is the  etc group file that lists all users groups   I would like to know if there is a simple command to list all user group names in spite of parsing the world readable  etc group file  I am willing to create an administrator web page that lists Linux accounts  group names

User · Accepted Answer

To list all local groups which have users assigned to them  use this command    cut -d  -f1  etc group   sort   For more info-   Unix groups  Cut command  sort command

User · Answer

On Linux  macOS and Unix to display the groups to which you belong  use  id -Gn  which is equivalent to groups utility which has been obsoleted on Unix  as per Unix manual   On macOS and Unix  the command id -p is suggested for normal interactive  Explanation of the parameters   -G  --groups - print all group IDs -n  --name - print a name instead of a number  for -ugG -p - Make the output human-readable

User · Answer

If you want all groups known to the system  I would recommend using getent group instead of parsing  etc group   getent group   The reason is that on networked systems  groups may not only read from  etc group file  but also obtained through LDAP or Yellow Pages  the list of known groups comes from the local group file plus groups received via LDAP or YP in these cases    If you want just the group names you can use   getent group   cut -d  -f1

[linux] Is there a command to list all Unix group names?

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