diff --git a/squid/clear.cgi b/squid/clear.cgi
index 1bc1dc585..f35b3ec5a 100755
--- a/squid/clear.cgi
+++ b/squid/clear.cgi
@@ -2,20 +2,24 @@
 # clear.cgi
 # Delete the cache, chown the directory to the correct user and re-run squid -z
 
+use strict;
+use warnings;
+our (%text, %in, %access, $squid_version, %config);
 require './squid-lib.pl';
 $access{'rebuild'} || &error($text{'clear_ecannot'});
 &ReadParse();
 $config{'cache_dir'} =~ /^\/\S+/ || &error("Cache directory not set");
-$conf = &get_config();
+my $conf = &get_config();
 
 if (!$in{'confirm'}) {
 	# Ask the user if he is sure
 	&ui_print_header(undef, $text{'clear_header'}, "");
-	print $text{'clear_msgclear'},"<br>\n";
-	print $text{'clear_msgclear2'},"<p>\n";
-	print "<form action=clear.cgi>\n";
-	print "<center><input type=submit name=confirm ",
-	      "value=\"$text{'clear_buttclear'}\"></center></form>\n";
+
+	print &ui_confirmation_form(
+		"clear.cgi",
+		$text{'clear_msgclear'}."<br>".$text{'clear_msgclear2'},
+		[],
+		[ [ undef, $text{'clear_buttclear'} ] ]);
 
 	if (&has_command($config{'squidclient'})) {
 		# Show form to clear just one URL
@@ -23,7 +27,7 @@ if (!$in{'confirm'}) {
 		print &ui_form_start("purge.cgi");
 		print "<b>$text{'clear_url'}</b>\n";
 		print &ui_textbox("url", undef, 50),"\n";
-		print &ui_submit($text{'clear_ok'}),"\n";
+		print &ui_submit($text{'clear_ok'}),"<br>\n";
 		print &ui_form_end();
 		}
 
@@ -34,19 +38,13 @@ if (!$in{'confirm'}) {
 &ui_print_unbuffered_header(undef, $text{'clear_header'}, "");
 
 # Stop squid (if running)
-if ($pidstruct = &find_config("pid_filename", $conf)) {
-	$pidfile = $pidstruct->{'values'}->[0];
-	}
-else { $pidfile = $config{'pid_file'}; }
-if (open(PID, $pidfile)) {
-	<PID> =~ /(\d+)/; $pid = $1;
-	close(PID);
-	}
+my $pid = &is_squid_running();
+my $stopped = 0;
 if ($pid && kill(0, $pid)) {
 	print "$text{'clear_stop'}<br>\n";
 	&system_logged("$config{'squid_path'} -f $config{'squid_conf'} ".
 	               "-k shutdown >/dev/null 2>&1");
-	for($i=0; $i<40; $i++) {
+	for(my $i=0; $i<40; $i++) {
 		if (!kill(0, $pid)) { last; }
 		sleep(1);
 		}
@@ -55,7 +53,8 @@ if ($pid && kill(0, $pid)) {
 	}
 
 # Get list of cache dirs
-if (@cachestruct = &find_config("cache_dir", $conf)) {
+my @caches;
+if (my @cachestruct = &find_config("cache_dir", $conf)) {
 	if ($squid_version >= 2.3) {
 		@caches = map { $_->{'values'}->[1] } @cachestruct;
 		}
@@ -63,14 +62,16 @@ if (@cachestruct = &find_config("cache_dir", $conf)) {
 		@caches = map { $_->{'values'}->[0] } @cachestruct;
 		}
 	}
-else { @caches = ( $config{'cache_dir'} ); }
+else {
+	@caches = ( $config{'cache_dir'} );
+	}
 
 # Delete old cache files and re-create with same permissions!
 print "$text{'clear_del'}<br>\n";
-foreach $c (@caches) {
-	@st = stat($c);
+foreach my $c (@caches) {
+	my @st = stat($c);
 	if (@st) {
-		&system_logged("rm -rf $c/* >/dev/null 2>&1");
+		&system_logged("rm -rf ".quotemeta($c)."/* >/dev/null 2>&1");
 		#mkdir($c, 0755);	# only remove contents
 		#chown($st[4], $st[5], $c);
 		#chmod($st[2], $c);
@@ -78,7 +79,7 @@ foreach $c (@caches) {
 	}
 print "$text{'clear_done'}<p>\n";
 
-$cmd = "$config{'squid_path'} -f $config{'squid_conf'} -z";
+my $cmd = "$config{'squid_path'} -f $config{'squid_conf'} -z";
 print &text('clear_init',$cmd)."<br>\n";
 print "<pre>\n";
 &additional_log('exec', undef, $cmd);
@@ -92,10 +93,10 @@ print "$text{'clear_done'}<p>\n";
 
 # Try to re-start squid
 if ($stopped) {
-	$temp = &transname();
+	my $temp = &transname();
 	&system_logged("$config{'squid_path'} -sY -f $config{'squid_conf'} >$temp 2>&1 </dev/null &");
 	sleep(3);
-	$errs = `cat $temp`;
+	my $errs = &read_file_contents($temp);
 	unlink($temp);
 	if ($errs) {
 		&system_logged("$config{'squid_path'} -k shutdown -f $config{'squid_conf'} >/dev/null 2>&1");
diff --git a/squid/edit_cachemgr.cgi b/squid/edit_cachemgr.cgi
index 25c67ef83..13f904b27 100755
--- a/squid/edit_cachemgr.cgi
+++ b/squid/edit_cachemgr.cgi
@@ -1,14 +1,17 @@
 #!/usr/local/bin/perl
 # Show a list of per-function cache manager passwords
 
+use strict;
+use warnings;
+our (%text, %in, %access, $squid_version, %config);
 require './squid-lib.pl';
 $access{'cachemgr'} || &error($text{'cachemgr_ecannot'});
 &ui_print_header(undef, $text{'cachemgr_title'}, "", "edit_cachemgr", 0, 0, 0,
 		 &restart_button());
 
 # Find password directives
-$conf = &get_config();
-@cachemgr = &find_config("cachemgr_passwd", $conf);
+my $conf = &get_config();
+my @cachemgr = &find_config("cachemgr_passwd", $conf);
 
 # Show them in a table
 print &ui_form_start("save_cachemgr.cgi", "post");
@@ -16,17 +19,17 @@ print &ui_radio("cachemgr_def", @cachemgr ? 0 : 1,
     [ [ 1, $text{'cachemgr_def1'} ], [ 0, $text{'cachemgr_def0'} ] ]),"<br>\n";
 print &ui_columns_start([ $text{'cachemgr_pass'},
 			  $text{'cachemsg_actions'} ], 100, 0);
-$i = 0;
-foreach $c (@cachemgr, { 'values' => [ 'none' ] }) {
-	@grid = ( );
-	($p, @acts) = @{$c->{'values'}};
-	%acts = map { $_, 1 } @acts;
+my $i = 0;
+foreach my $c (@cachemgr, { 'values' => [ 'none' ] }) {
+	my @grid = ( );
+	my ($p, @acts) = @{$c->{'values'}};
+	my %acts = map { $_, 1 } @acts;
 	foreach my $a (&list_cachemgr_actions()) {
 		push(@grid, &ui_checkbox("action_$i", $a, $a, $acts{$a}));
 		delete($acts{$a});
 		}
-	@others = grep { $_ ne 'all' } keys %acts;
-	$pmode = $p eq "none" ? "none" : $p eq "disable" ? "disable" : undef;
+	my @others = grep { $_ ne 'all' } keys %acts;
+	my $pmode = $p eq "none" ? "none" : $p eq "disable" ? "disable" : undef;
 	print &ui_columns_row([
 		&ui_radio("pass_def_$i", $pmode,
 			  [ [ "none", $text{'cachemgr_none'}."<br>" ],
diff --git a/squid/save_cachemgr.cgi b/squid/save_cachemgr.cgi
index 124e7b415..492b5ed24 100755
--- a/squid/save_cachemgr.cgi
+++ b/squid/save_cachemgr.cgi
@@ -1,6 +1,9 @@
 #!/usr/local/bin/perl
 # Save the list of per-function cache manager passwords
 
+use strict;
+use warnings;
+our (%text, %in, %access, $squid_version, %config);
 require './squid-lib.pl';
 &error_setup($text{'cachemgr_err'});
 $access{'cachemgr'} || &error($text{'cachemgr_ecannot'});
@@ -8,7 +11,7 @@ $access{'cachemgr'} || &error($text{'cachemgr_ecannot'});
 
 # Validate and store inputs
 &lock_file($config{'squid_conf'});
-$conf = &get_config();
+my $conf = &get_config();
 
 if ($in{'cachemgr_def'}) {
 	# Clear them all
@@ -16,8 +19,10 @@ if ($in{'cachemgr_def'}) {
 	}
 else {
 	# Build up list and save
-	for($i=0; defined($pmode = $in{"pass_def_$i"}); $i++) {
-		$pass = $pmode || $in{"pass_$i"};
+	my @rv;
+	for(my $i=0; defined(my $pmode = $in{"pass_def_$i"}); $i++) {
+		my $pass = $pmode || $in{"pass_$i"};
+		my @actions;
 		if ($in{"all_$i"}) {
 			@actions = ( "all" );
 			}