HP-UX Reference (11i v2 03/08) - 1M System Administration Commands N-Z (vol 4)

u
usermod(1M) usermod(1M)
WARNINGS
As many users may try to write the
/etc/passwd file simultaneously, a passwd locking mechanism was
devised. If this locking fails after subsequent retrying, usermod terminates.
While modifying the user login, the username is not added to the primary group entry in the
/etc/group file. If a supplemental group is specified, the user is added to the supplemental group. If
the size of a group entry in /etc/group
file exceeds LINE_MAX limit, a new entry of the same group is
created and a warning message is issued.
FILES
/etc/shadow Shadow Password file
/etc/passwd System Password file
/etc/group System group file
/etc/ptmp Lock file used when updating password file
SEE ALSO
passwd(1), users(1), groupadd(1M), groupdel(1M), groupmod(1M), logins(1M), useradd(1M), userdel(1M),
pwconv(1M), group(4), shadow(4).
STANDARDS CONFORMANCE
usermod: SVID3
HP-UX 11i Version 2: August 2003 3 Hewlett-Packard Company Section 1M831