8c9a0507db1975bdd86f401bbfe0535189c67b8f
[perl.git] / eg / who
1 #!/usr/bin/perl
2 # This assumes your /etc/utmp file looks like ours
3 open(UTMP,'/etc/utmp');
4 @mo = (Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec);
5 while (read(UTMP,$utmp,36)) {
6     ($line,$name,$host,$time) = unpack('A8A8A16l',$utmp);
7     if ($name) {
8         $host = "($host)" if $host;
9         ($sec,$min,$hour,$mday,$mon) = localtime($time);
10         printf "%-9s%-8s%s %2d %02d:%02d   %s\n",
11           $name,$line,$mo[$mon],$mday,$hour,$min,$host;
12     }
13 }