UPDATE-PASSWD(8) System Manager's Manual UPDATE-PASSWD(8) NAME update-passwd - safely update /etc/passwd, /etc/shadow and /etc/group SYNOPSIS update-passwd [options] DESCRIPTION update-passwd handles updates of /etc/passwd, /etc/shadow and /etc/group on running Debian systems. It compares the current files to master copies, distributed in the base-passwd package, and updates all entries in the global system range (that is, 0-99). It leaves backup copies of the previous versions of modified files with the extension '.org' (for "original"). OPTIONS update-passwd follows the usual GNU command line syntax, with long options starting with two dashes ('-'). -p, --passwd-master=FILE Use FILE as the master copy of the passwd database. The default value is /usr/share/base-passwd/passwd.master. -g, --group-master=FILE Use FILE as the master copy of the group database. The default value is /usr/share/base-passwd/group.master. -P, --passwd=FILE Use FILE as the system passwd database. The default value is /etc/passwd. -S, --shadow=FILE Use FILE as the system shadow database. The default value is /etc/shadow. -G, --group=FILE Use FILE as the system group database. The default value is /etc/group. -s, --sanity-check Only perform sanity-checks but don't do anything. -v, --verbose Give detailed information about what we are doing. A second -v gives additional detail. -n, --dry-run Don't do anything but only show what we would do. -L, --no-locking Don't attempt to lock the account database. This should only be used for debugging purposes. I repeat: do not do this unless you are really sure you need this! -h, --help Show a summary of how to use update-passwd. -V, --version Show the version number ENVIRONMENT DEBIAN_HAS_FRONTEND If this environment variable is set and the --dry-run flag was not given, up- date-passwd uses debconf to prompt for whether to make changes. Each proposed change will produce a separate prompt. User or group removals, UID or GID changes, and home directory changes will be asked with high priority. User or group addi- tions and shell changes will be asked with medium priority. Questions about whether to move entries above the NIS compat inclusion entry or whether to change the GECOS of a user are asked at low priority. BUGS At this moment update-passwd does not verify the shadow-file. It should check if the en- tries in the passwd are also in shadow and vice versa, and that passwords are not present in both files. AUTHOR Wichert Akkerman <wakkerma AT debian.org> This program was written for the Debian project, and is copyright 1999-2002 Wichert Akker- man and copyright 2002, 2003 Colin Watson. It is distributed under version 2 of the GNU General Public License. DEBIAN Debian tools UPDATE-PASSWD(8)
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