+#!/usr/bin/perl
+
+# Sleep randomly betwenn 0 and $ARGV[0] seconds.
+
+# Copyright (C) 2013 Simon Ruderich
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+use strict;
+use warnings;
+
+
+if (scalar @ARGV != 1) {
+ print STDERR "Usage: $0 <maximum sleep time in seconds>\n";
+ exit 1;
+}
+
+srand;
+sleep int rand $ARGV[0];