1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#!/usr/bin/env perl
# call getpwnam() or getgrnam() to check if user or group (given as arg) exists
# on the system (getpwnam() and getgrnam() use nsswitch.conf, so it works
# even if NYS (or similar) is used)
sub usage {
return "usage:\n has_usrgrp.pl [-user user|-group group] [-printuid|-printgid]\n";
}
if ( @ARGV < 2 || @ARGV > 3) {
die usage();
}
if ( $ARGV[0] eq "-user" ) {
($name, $passwd, $uid, $gid) = getpwnam($ARGV[1]);
}
elsif ( $ARGV[0] eq "-group" ) {
($name, $passwd, $gid) = getgrnam($ARGV[1]);
}
else {
die usage();
}
if ( ! $name) {
exit 1;
}
if ( @ARGV == 3 ) {
if ( $ARGV[2] eq "-printgid" ) {
print $gid, "\n";
}
elsif ( $ARGV[2] eq "-printuid" ) {
if ( defined $uid ) {
print $uid, "\n";
} else {
die usage();
}
}
}
exit 0;
|
