From e384998bc7ed2b5cf14d3389129c9c7f7274eeb4 Mon Sep 17 00:00:00 2001
From: Babak Farrokhi <babak@farrokhi.net>
Date: Thu, 27 Aug 2015 15:10:42 +0430
Subject: [PATCH] - make awk code more readable - improve error handling

---
 netirq_ | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/netirq_ b/netirq_
index 03f24e5..2ea9f63 100755
--- a/netirq_
+++ b/netirq_
@@ -47,11 +47,17 @@ ${VMSTAT} -i | sort -V > ${STATFILE} 2>/dev/null
 
 if [ $# -lt 1 ]; then
 
-	if [ x${STAT_TYPE} == x ]; then
+	if [ -z ${STAT_TYPE} ]; then
+		echo "Should run from symlink"
 		exit 1
 	fi
 
-	cat ${STATFILE} | ${AWK} '{ FS = "[ ]{2,}" }  /'${STAT_TYPE}'/{split($1,name,":"); print name[1]".value "$2}'
+	${AWK} '
+{ FS = "[ ]{2,}" }  
+/'${STAT_TYPE}'/ {
+	split($1,name,":"); 
+	print name[1]".value "$2
+}' ${STATFILE}
 
 
 elif [ "$1" == "suggest" ]; then   
@@ -65,7 +71,8 @@ elif [ "$1" == "autoconf" ]; then
 
 elif [ "$1" == "config" ]; then
 
-	if [ x${STAT_TYPE} == x ]; then
+	if [ -z ${STAT_TYPE} ]; then
+		echo "Should run from symlink";
 		exit 1
 	fi