contrib/lastusers.sh

   1 #!/bin/sh
   2 #
   3 # Find users whose last login is greater or less than the specified arguments.
   4 # Needs the userinfo utility from http://userinfo.sourceforge.net/.
   5 #
   6 # Copyright (c) 2003-2004 Ben Kibbey <bjk@arbornet.org>
   7 # Distributed under the terms of the General Public License version 2 or later.
   8 #
   9 # $Log: lastusers.sh,v $
  10 # Revision 2.0  2004-12-05 19:44:23  bjk
  11 # Initial revision
  12 #
  13 # Revision 1.6  2004/11/21 18:48:07  bjk
  14 # Updated to work with userinfo 2.0 (included in the archive).
  15 #
  16 # Revision 1.5  2004/05/01 19:10:37  bjk
  17 # Changed option -b to -l.
  18 #
  19 # Displaying users who have never logged in is off by default. Specify with -n.
  20 #
  21 # Revision 1.4  2003/03/01 19:30:44  bjk
  22 # Changed option -a to -b to specify logins before the arguments.
  23 #
  24 # Added options -s, -m, -r to specify seconds, minutes and hours.
  25 #
  26 # Revision 1.3  2003/03/01 16:14:46  bjk
  27 # Added option -a to specify logins after the arguments.
  28 #
  29 # Revision 1.2  2003/02/26 17:43:22  bjk
  30 # Dont run userinfo on matches. Dump only the username.
  31 #
  32 # Added option -n to suppress users who have never logged in.
  33 #
  34 # Revision 1.1  2003/02/22 20:57:18  bjk
  35 # Initial commit.
  36 #
  37 #
  38 PN="`basename $0`";
  39 MINUTE=60;
  40 HOUR=3600;
  41 DAY=86400;
  42 WEEK=604800;
  43 YEAR=31449600;
  44 CMD="awk -F: '{print \$1}' < /etc/passwd | ui -O passwd.so -l -- -O login.so -lt --";
  45
  46 usage () {
  47     cat <<EOF 1>&2
  48 Find users whose last login is greater or less than the specified arguments.
  49 Usage: $PN [-hnl] [-s seconds] [-m minutes] [-r hours] [-d days]
  50            [-w weeks] [-y years]
  51     -s  Logins seconds old.
  52     -m  Logins minutes old.
  53     -r  Logins hours old.
  54     -d  Logins days old.
  55     -w  Logins weeks old.
  56     -y  Logins years old.
  57     -l  List users whose last login is at least as old as the arguments.
  58     -n  Also show users who have never logged in.
  59     -h  This help text.
  60 EOF
  61     exit 1;
  62 }
  63
  64 while getopts "d:w:hr:m:nls:y:" opt; do
  65     case $opt in
  66         l) BEFORE=1;;
  67         n) NOLOGIN=1;;
  68         s) tmp=`expr $OPTARG`;;
  69         d) tmp=`expr $OPTARG \* $DAY`;;
  70         w) tmp=`expr $OPTARG \* $WEEK`;;
  71         r) tmp=`expr $OPTARG \* $HOUR`;;
  72         m) tmp=`expr $OPTARG \* $MINUTE`;;
  73         y) tmp=`expr $OPTARG \* $YEAR`;;
  74         h) usage;;
  75         \?) usage;;
  76         --) break;;
  77     esac;
  78
  79     if [ $WHEN ]; then
  80         WHEN=`expr $WHEN + $tmp`;
  81     else
  82         WHEN=$tmp;
  83     fi;
  84 done;
  85
  86 if [ ! $WHEN ]; then
  87     usage;
  88 fi;
  89
  90 shift $(($OPTIND - 1));
  91
  92 NOW=`date +%s`;
  93 OLDIFS=$IFS;
  94
  95 eval $CMD | while read line; do
  96     IFS=:;
  97     set $line;
  98     user="$1";
  99     sec="$2";
 100
 101     if [ x"$sec" = x- -o x"$sec" = x\! ]; then
 102         if [ $NOLOGIN ]; then
 103             echo "$user";
 104         fi;
 105
 106         continue;
 107     fi;
 108
 109     if [ $BEFORE ]; then
 110         if [ `expr $NOW - $sec` -gt $WHEN ]; then
 111             echo "$user";
 112         fi;
 113     else
 114         if [ `expr $NOW - $sec` -lt $WHEN ]; then
 115             echo "$user";
 116         fi;
 117     fi;
 118 done;
 119
 120 IFS=$OLDIFS;
 121 exit 0;