diff --git a/xCAT-test/autotest/testcase/makehosts/cases0 b/xCAT-test/autotest/testcase/makehosts/cases0
index 98b505981..c647af508 100644
--- a/xCAT-test/autotest/testcase/makehosts/cases0
+++ b/xCAT-test/autotest/testcase/makehosts/cases0
@@ -15,7 +15,7 @@ check:output=~Usage
 end
 
 start:makehosts_null
-description:makehosts 
+description:makehosts
 label:mn_only,dns
 cmd:cp -f /etc/hosts /etc/hosts.xcatbakautotest
 cmd:chtab node=nouse_compute hosts.ip="|node(\d+)|1.2.3.(\$1+0)|" hosts.hostnames="|(.*)|(\$1).cluster.net|"
@@ -23,12 +23,12 @@ check:rc==0
 cmd:mkdef -t node -o node01,node02 groups="nouse_compute"
 check:rc==0
 cmd:sleep 30
-cmd:XCATBYPASS=1 makehosts 
+cmd:XCATBYPASS=1 makehosts
 check:rc==0
 cmd:sleep 30
 cmd:cat /etc/hosts
-check:output=~1.2.3.2 
-check:output=~1.2.3.1 
+check:output=~1.2.3.2
+check:output=~1.2.3.1
 check:output=~node01
 check:output=~node02
 cmd:chtab -d node=nouse_compute hosts
@@ -46,7 +46,7 @@ check:rc==0
 cmd:chdef -t node -o node01,node02 groups="nouse_compute"
 check:rc==0
 cmd:sleep 30
-cmd:lsdef -l nouse_compute 
+cmd:lsdef -l nouse_compute
 cmd:XCATBYPASS=1 makehosts -l
 check:rc==0
 cmd:sleep 30
@@ -70,7 +70,7 @@ check:rc==0
 cmd:lsdef  -l node01
 cmd:sleep 30
 cmd:cat /etc/hosts
-cmd:makehosts node01 
+cmd:makehosts node01
 check:rc==0
 cmd:sleep 30
 cmd:cat /etc/hosts |tee /tmp/1
@@ -133,7 +133,7 @@ cmd:chtab -d node=compute hosts
 cmd:rmdef node01
 cmd:mv -f /etc/hosts.xcatbakautotest /etc/hosts
 cmd:cat /etc/hosts| grep -v node01 > /tmp/1
-cmd:mv -f /tmp/1 /etc/hosts 
+cmd:mv -f /tmp/1 /etc/hosts
 cmd:rm -rf /tmp/hosts
 end
 
@@ -154,13 +154,13 @@ check:rc==0
 cmd:cat /etc/hosts
 cmd:#!/bin/bash
 file="/etc/hosts"
-for i in {1..5}; do 
+for i in {1..5}; do
     if (grep "70.2.0.254 s01" $file >/dev/null 2>&1) && (grep "80.2.0.254 s01r1b01" $file >/dev/null 2>&1); then
         exit 0;
     else
         echo "Do not find s01 and s01r1b01 in $file, sleep $[i*2] seconds and try again"
         sleep $[i*2]
-    fi 
+    fi
 done
 exit 1
 check:rc==0
@@ -215,7 +215,7 @@ cmd:cp -f /etc/hosts.xcatbakautotest /etc/hosts
 cmd:makehosts
 check:rc==0
 cmd:cat /etc/hosts
-cmd:makehosts -d service 
+cmd:makehosts -d service
 check:rc==0
 cmd:cat /etc/hosts
 cmd:#!/bin/bash