#!/bin/perl
#
# Convert GECOS information in password files to alias syntax.
#
# Contributed by Kari E. Hurtta <Kari.Hurtta@ozone.fmi.fi>
#
print "# Generated from passwd by $0\n";
$wordpat = '([a-zA-Z]+?[a-zA-Z0-9-]*)?[a-zA-Z0-9]'; # 'DB2'
while (@a = getpwent) {
($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$dir,$shell) = @a;
($fullname = $gcos) =~ s/,.*$//;
if (!-d $dir || !-x $shell || $shell =~ m!/bin/(false|true)$!) {
print "$name: root\n"; # handle pseudo user
}
$fullname =~ s/\.*[ _]+\.*/./g;
$fullname =~ tr [���������] [aaeouAAOU]; # <hakan@af.lu.se> 1997-06-15
next if (!$fullname || lc($fullname) eq $name); # avoid nonsense
if ($fullname =~ /^$wordpat(\.$wordpat)*$/o) { # Ulrich Windl
print "$fullname: $name\n";
} else {
print "# $fullname: $name\n"; # avoid strange names
}
};
endpwent;