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Linux / Unix Command: id
Command Library


id - print real and effective UIDs and GIDs  




Print information for USERNAME, or the current user.

ignore, for compatibility with other versions
-g, --group
print only the effective group ID
-G, --groups
print all group IDs
-n, --name
print a name instead of a number, for -ugG
-r, --real
print the real ID instead of the effective ID, with -ugG
-u, --user
print only the effective user ID
display this help and exit
output version information and exit

Without any OPTION, print some useful set of identified information.  


The full documentation for id is maintained as a Texinfo manual. If the info and id programs are properly installed at your site, the command
info id

should give you access to the complete manual.

Important: Use the man command (% man) to see how a command is used on your particular computer.

>> Linux/Unix Command Library

>> Shell Command Library

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