TLDR
Enter a command. For example: reboot, ddrescue, cpufreq set.

groupmod

 
Modify existing user groups in the system. See also: groups, groupadd, groupdel. More information: https://manned.org/groupmod.
 
  • Change the group name:
     
    sudo groupmod --new-name {{new_group}} {{group_name}}
     
  • Change the group id:
     
    sudo groupmod --gid {{new_id}} {{group_name}}

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