diff --git a/xCAT-test/autotest/testcase/installation/compare_postscripts b/xCAT-test/autotest/testcase/installation/compare_postscripts
index 499d47197..190b8adf1 100644
--- a/xCAT-test/autotest/testcase/installation/compare_postscripts
+++ b/xCAT-test/autotest/testcase/installation/compare_postscripts
@@ -1,17 +1,16 @@
 start:compare_postscripts
 os:Linux
 label:provision
-cmd:cd /install/postscripts; tar cvf /tmp/sn.tar *
-cmd:scp /tmp/sn.tar $$CN:/tmp
+cmd:cd /install/postscripts; tar cvf /tmp/mn.tar *
 cmd:xdsh $$CN "cd /xcatpost; tar cvf /tmp/cn.tar *"
-cmd:xdsh $$CN "mkdir -p /tmp/sn; tar xvf /tmp/sn.tar -C /tmp/sn"
-cmd:xdsh $$CN "mkdir -p /tmp/cn; tar xvf /tmp/cn.tar -C /tmp/cn; rm -f /tmp/cn/mypost*"
-cmd:xdsh $$CN "diff -r /tmp/sn /tmp/cn > /tmp/diff.list"
+cmd:scp $$CN:/tmp/cn.tar /tmp; rm $$CN:/tmp/cn.tar
+cmd:mkdir -p /tmp/mn; tar xvf /tmp/mn.tar -C /tmp/mn
+cmd:mkdir -p /tmp/cn; tar xvf /tmp/cn.tar -C /tmp/cn; rm /tmp/cn/mypost*
+cmd:diff -r /tmp/mn /tmp/cn > /tmp/diff.list
 check:rc==0
-cmd:xdsh $$CN "cat /tmp/diff.list"
+cmd:cat /tmp/diff.list
 check:rc==0
 
-cmd:rm /tmp/sn.tar
-cmd:xdsh $$CN "rm /tmp/cn.tar; rm -fr /tmp/sn; rm -fr /tmp/cn; rm /tmp/diff.list"
+cmd:rm -fr /tmp/mn; rm -fr /tmp/cn; rm /tmp/diff.list"
 check:rc==0
 end