qmail-pw2u - build address assignments from a passwd file
qmail-pw2u [ -/ohHuUC ] [ -cchar ]
qmail-pw2u reads a V7-format passwd file from standard input
and prints a qmail-users-format assignment file.
A V7-format passwd file is a series of lines. Each line has
where user is an account name, uid and gid are the user id
and group id of that account, and home is the account's home
directory. password, gecos, and shell are ignored by
If you put the output of qmail-pw2u into
QMAILHOME/users/assign, and then run qmail-newu, qmail-
lspawn will obey the assignments printed by qmail-pw2u.
WARNING: After changing any users, uids, gids, or home
directories in your passwd file, you must run qmail-pw2u and
qmail-newu again if you want qmail-lspawn to see the
By default, qmail-pw2u follows the same rules as qmail-
getpw. It skips user if (1) uid is zero, (2) home does not
exist, (3) user does not own home, or (4) user contains
uppercase letters. It then gives each remaining user
control over the basic user address and all addresses of the
form userBREAKanything. A catch-all user, alias, controls
all other addresses.
You may change these rules by setting up files in
Allowed users, one per line. If include exists, and
user is not listed in include, user is ignored.
Ignored users, one per line. If exclude exists, and
user is listed in exclude, user is ignored.
Replacement names for users. Each line has the form
The addresses mailname1 and mailname1BREAKext and
mailname2 and so on will be delivered to user.
WARNING: The addresses user and userBREAKext will not
be delivered to user unless user is listed as one of
A line in mailnames is silently ignored if the user
does not exist.
Extra addresses. Each line has the form
sub will be handled by home/.qmail-pre, where home is
user's home directory; subBREAKext will be handled by
Extra assignments, printed at the end of qmail-pw2u's
-o (Default.) Skip user if home does not exist (or is not
visible to qmail-pw2u). Skip user if home is not owned
-h Stop if home does not exist. This is appropriate if
every user is supposed to have a home directory. Skip
user if home is not owned by user.
-H Do not check the existence or ownership of home.
-U (Default.) Skip user if there are any uppercase
letters in user.
-u Allow uppercase letters in user.
Use char as the user-extension delimiter in place of
-C Disable the user-extension mechanism.
-/ Use home/.qmail-/... instead of home/.qmail-...
qmail-users(5), qmail-lspawn(8), qmail-newu(8),
Man(1) output converted with