Q. How do I find out - Which groups do I belong to?
A. A user can be in any number of groups apart from his/her default group. Groups are created and managed by root user. You cannot edit or modify your ownership. However Linux allows you to view in which groups you are by using the groups command.
Task: Display or print the groups a user is in
Type the whoami command to display your user ID:
Type the groups command :
vivek dialout cdrom floppy audio video plugdev
My default group is vivek and I am a member of dialout, cdrom, floppy, audio, video plugdev group.
You can also use id command to print both numeric and name based group id:
uid=1000(vivek) gid=1000(vivek) groups=20(dialout), 24(cdrom), 25(floppy), 29(audio), 44(video), 46(plugdev), 1000(vivek)
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