NAME

id − print user and group IDs and names

SYNOPSIS

id [-g|-u] [-nr] [user]

DESCRIPTION

id writes a message on the standard output, giving the user and group ID s and the corresponding names of the invoking process.  If the effective and real ID s do not match, both are printed. 

If the user operand is specified and the process is a user with appropriate privileges, the user and group ID s of the selected user are written.  In this case, effective ID s are assumed to be identical to real ID s. 

If the process has supplementary group affiliations (see groups(1)), the supplementary group affiliations are also written.

Options

-g Output only the group ID in decimal format.  To modify, use the -n option.  The default group ID is the effective group ID.  To modify, use the -r option.  If the invoking process has supplementary group affiliations that are different from the effective group ID , output each such affiliation in decimal format on the same line. 

-n With -u or -g, output the name in character string format instead of the numeric ID. 

-r With -u or -g, output the real ID instead of the effective ID. 

-u Output only the user ID in decimal format.  To modify, use the -n option.  The default group ID is the effective group ID.  To modify, use the -r option. 

AUTHOR

id was developed by HP and AT&T. 

SEE ALSO

groups(1), logname(1), getuid(2). 

STANDARDS CONFORMANCE

id: SVID2, XPG2, XPG3, POSIX.2

Hewlett-Packard Company  —  HP-UX Release 9.0: August 1992