+ file_save
+ file_unlock);
+
+# chgrp()
+#
+# Change the group of files or directories
+#
+# Params: 1. Group name
+# 2. List of files
+#
+# Return: Number of files group successfully changed
+# (or false)
+
+sub chgrp($@)
+{
+ my ($group,@files) = @_;
+ my $gid = ($group !~ /^\d+$/) ? getgrnam($group): $group;
+
+ return unless($gid);
+ return chown(-1,$gid,@files);
+}