From 46542ccda5df42a8b07e1d7fee629374e51e732a Mon Sep 17 00:00:00 2001
From: Kairui Song <kasong@redhat.com>
Date: Wed, 4 Aug 2021 02:59:43 +0800
Subject: [PATCH] dracut-module-setup.sh: rework kdump_get_ip_route_field

Avoid duplicated echo / cut / grep call, just use sed.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Philipp Rudo <prudo@redhat.com>
---
 dracut-module-setup.sh | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
index 53abdc7..d7f8cb5 100755
--- a/dracut-module-setup.sh
+++ b/dracut-module-setup.sh
@@ -523,9 +523,7 @@ kdump_get_ip_route()
 
 kdump_get_ip_route_field()
 {
-    if `echo $1 | grep -q $2`; then
-        echo ${1##*$2} | cut -d ' ' -f1
-    fi
+    echo "$1" | sed -n -e "s/^.*\<$2\>\s\+\(\S\+\).*$/\1/p"
 }
 
 kdump_get_remote_ip()