Usage: iwidmap [-v] [-h] (-u | -g) [-a][-c <user1> <user2>] [-x <file> | -i <file>] [-s hostname] backing-store -v print the version of this program -h print this message -u update userid mapping -g update groupid mapping -a update all entries in the id map -c <user> <user2> update user1 to user2 -x <file> extract to file -i <file> import from file -s name of host to lookup up id. Default is localhostbacking-store location of backing store