diff --git a/xCAT-test/autotest/testcase/addkit/cases0 b/xCAT-test/autotest/testcase/addkit/cases0
index c69256c44..dbdcedf55 100644
--- a/xCAT-test/autotest/testcase/addkit/cases0
+++ b/xCAT-test/autotest/testcase/addkit/cases0
@@ -2,16 +2,16 @@ start:addkit_v
 label:others,KIT
 cmd:addkit -v
 check:rc==0
-check:output~=Version
-check:output~=kitframework
-check:output~=compatible_frameworks
+check:output=~Version
+check:output=~kitframework
+check:output=~compatible_frameworks
 end
 
 start:addkit_h
 label:others,KIT
 cmd:addkit -h
 check:rc==0
-check:output~=Usage
+check:output=~Usage
 check:outpur!~error
 end
 
diff --git a/xCAT-test/autotest/testcase/chkkitcomp/cases0 b/xCAT-test/autotest/testcase/chkkitcomp/cases0
index 0e46d2b1f..ec142db60 100644
--- a/xCAT-test/autotest/testcase/chkkitcomp/cases0
+++ b/xCAT-test/autotest/testcase/chkkitcomp/cases0
@@ -2,16 +2,16 @@ start:chkkitcomp_v
 label:others,KIT
 cmd:chkkitcomp -v
 check:rc==0
-check:output~=Version
-check:output~=kitframework
-check:output~=compatible_frameworks
+check:output=~Version
+check:output=~kitframework
+check:output=~compatible_frameworks
 end
 
 start:chkkitcomp_h
 label:others,KIT
 cmd:addkit -h
 check:rc==0
-check:output~=Usage
+check:output=~Usage
 check:outpur!~error
 end
 
diff --git a/xCAT-test/autotest/testcase/osdeploy/cases0 b/xCAT-test/autotest/testcase/osdeploy/cases0
index e362b1c26..c6255f399 100644
--- a/xCAT-test/autotest/testcase/osdeploy/cases0
+++ b/xCAT-test/autotest/testcase/osdeploy/cases0
@@ -3,9 +3,9 @@ description: osdeploy check usage
 label:others,xcatprobe
 cmd:xcatprobe osdeploy -h
 check:rc==0
-check:output~=Usage
-check:output~=osdeploy -h
-check:output~=Description
+check:output=~Usage
+check:output=~osdeploy -h
+check:output=~Description
 end
 
 start:osdeploy_n
@@ -85,7 +85,7 @@ cmd:test=`lsdef test_node`;if [ $test eq 0 ]; then lsdef -l test_node -z >/tmp/n
 check:rc==0
 cmd:xcatprobe osdeploy -n test_node
 check:rc==1
-check:output~=without node definition
+check:output=~without node definition
 cmd:if [ -e /tmp/node.stanza ]; then cat /tmp/node.stanza | mkdef -z; rm -rf /tmp/node.stanza; fi
 check:rc==0
 end
@@ -94,10 +94,10 @@ description:osdeploy -n node -p invalid parameter
 label:others,xcatprobe
 cmd:xcatprobe osdeploy -n $$CN -p dsdf
 check:rc==1
-check:output~=Usage:
-check:output~="'compact': Elapsed time of provision for each node."
-check:output~="'phase'  : Elapsed time for DHCP, INSTALL, POSTSCRIPTS and POSTBOOTSCRIPTS stages, and time for whole provis"
-check:output~="'origin' : Show origin start time of each stage."
+check:output=~Usage:
+check:output=~"'compact': Elapsed time of provision for each node."
+check:output=~"'phase'  : Elapsed time for DHCP, INSTALL, POSTSCRIPTS and POSTBOOTSCRIPTS stages, and time for whole provis"
+check:output=~"'origin' : Show origin start time of each stage."
 end
 
 start:osdeploy_n_r_invalid
@@ -105,10 +105,10 @@ description:osdeploy -n node -r invalid parameter
 label:others,xcatprobe
 cmd:xcatprobe osdeploy -n $$CN -r dadf
 check:rc==1
-check:output~=Usage:
-check:output~="'compact': Elapsed time of provision for each node."
-check:output~="'phase'  : Elapsed time for DHCP, INSTALL, POSTSCRIPTS and POSTBOOTSCRIPTS stages, and time for whole provis"
-check:output~="'origin' : Show origin start time of each stage."
+check:output=~Usage:
+check:output=~"'compact': Elapsed time of provision for each node."
+check:output=~"'phase'  : Elapsed time for DHCP, INSTALL, POSTSCRIPTS and POSTBOOTSCRIPTS stages, and time for whole provis"
+check:output=~"'origin' : Show origin start time of each stage."
 end
 
 start:osdeploy_n_t_invalid
@@ -116,10 +116,10 @@ description:osdeploy -n node -t invalid parameter
 label:others,xcatprobe
 cmd:xcatprobe osdeploy -n $$CN -t dadf
 check:rc==1
-check:output~=Usage:
-check:output~="'compact': Elapsed time of provision for each node."
-check:output~="'phase'  : Elapsed time for DHCP, INSTALL, POSTSCRIPTS and POSTBOOTSCRIPTS stages, and time for whole provis"
-check:output~="'origin' : Show origin start time of each stage."
+check:output=~Usage:
+check:output=~"'compact': Elapsed time of provision for each node."
+check:output=~"'phase'  : Elapsed time for DHCP, INSTALL, POSTSCRIPTS and POSTBOOTSCRIPTS stages, and time for whole provis"
+check:output=~"'origin' : Show origin start time of each stage."
 end
 
 start:osdeploy_n_p_origin
diff --git a/xCAT-test/autotest/testcase/xcat_inventory/cases.common b/xCAT-test/autotest/testcase/xcat_inventory/cases.common
index 8572f59d5..59d68399b 100644
--- a/xCAT-test/autotest/testcase/xcat_inventory/cases.common
+++ b/xCAT-test/autotest/testcase/xcat_inventory/cases.common
@@ -84,17 +84,17 @@ diff -y --ignore-blank-lines --ignore-matching-lines="^#"  /tmp/xcat_inventory_e
 check:rc==0
 cmd:xcat-inventory export -t node -o bogusnode -f
 check:rc!=0
-check:output ~=usage
-check:output ~= error: argument -f/--path: expected one argument
+check:output =~usage
+check:output =~ error: argument -f/--path: expected one argument
 cmd:xcat-inventory export -t node -o bogusnode --path
 check:rc!=0
-check:output ~=usage
-check:output ~= error: argument -f/--path: expected one argument
+check:output =~usage
+check:output =~ error: argument -f/--path: expected one argument
 cmd:mkdir /tmp/xcat_inventory_export_option_f/testdir
 check:rc==0
 cmd:xcat-inventory export -t node -o bogusnode -f /tmp/xcat_inventory_export_option_f/testdir
 check:rc!=0
-check:output ~= Error: the specified file /tmp/xcat_inventory_export_option_f/testdir already exists, is not a file!
+check:output =~ Error: the specified file /tmp/xcat_inventory_export_option_f/testdir already exists, is not a file!
 cmd:rmdef bogusnode
 check:rc==0
 cmd:if [[ -e /tmp/xcat_inventory_export_option_f/bogusnode.stanza ]]; then cat /tmp/xcat_inventory_export_option_f/bogusnode.stanza | mkdef -z;fi