From bb5c5f84fa0d521bf76482f8dee9dc2f0f5c997f Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@FreeBSD.org>
Date: Tue, 19 Oct 2010 15:18:40 +0000
Subject: [PATCH] Simplify and significantly speed up the timezone listing
 backend script.

Reviewed by:	imp
---
 .../pc-sysinstall/backend-query/list-tzones.sh  | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/usr.sbin/pc-sysinstall/backend-query/list-tzones.sh b/usr.sbin/pc-sysinstall/backend-query/list-tzones.sh
index 640272e8243..c7009b0c52f 100755
--- a/usr.sbin/pc-sysinstall/backend-query/list-tzones.sh
+++ b/usr.sbin/pc-sysinstall/backend-query/list-tzones.sh
@@ -25,19 +25,10 @@
 #
 # $FreeBSD$
 
-rm ${TMPDIR}/.tzonetmp >/dev/null 2>/dev/null
-
 # Backend script which lists all the available timezones for front-ends to display
-while read line
-do
-  echo "$line" | grep "^#" >/dev/null 2>/dev/null
-  if [ "$?" != "0" ]
-  then
-    echo "$line" |  tr -s "\t" ":" | cut -d ":" -f 3-4 >>${TMPDIR}/.tzonetmp
-  fi
-done < /usr/share/zoneinfo/zone.tab
-
-sort ${TMPDIR}/.tzonetmp
-rm -f ${TMPDIR}/.tzonetmp >/dev/null 2>/dev/null
+egrep -v '^#' /usr/share/zoneinfo/zone.tab |\
+  tr -s "\t" ":" |\
+  cut -d ":" -f 3-4 |\
+  sort
 
 exit 0