diff --git a/mugen/.keep b/mugen/.keep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/testcases/cli-test/at/oe_test_at_at.sh b/testcases/cli-test/at/oe_test_at_at.sh
index a1df6d0d6b80775859f8154a9ad55fc42f3dc8aa..2a41b6ced295cd4a0a0939109b83121373125c61 100644
--- a/testcases/cli-test/at/oe_test_at_at.sh
+++ b/testcases/cli-test/at/oe_test_at_at.sh
@@ -21,6 +21,7 @@ source "${OET_PATH}"/libs/locallibs/common_lib.sh
 
 function pre_test() {
     LOG_INFO "Start environment preparation."
+    DNF_INSTALL at
     OLD_LANG=$LANG
     export LANG=en_US.UTF-8    
     LOG_INFO "End of environmental preparation!"
diff --git a/testcases/cli-test/at/oe_test_at_atrm.sh b/testcases/cli-test/at/oe_test_at_atrm.sh
index 97e60bd4c468a2553ef51463e4c5c1246daad570..621671d8e05c257d54e3a912b117f0d805b83201 100644
--- a/testcases/cli-test/at/oe_test_at_atrm.sh
+++ b/testcases/cli-test/at/oe_test_at_atrm.sh
@@ -21,6 +21,7 @@ source "${OET_PATH}"/libs/locallibs/common_lib.sh
 
 function pre_test() {
     LOG_INFO "Start environment preparation."
+    DNF_INSTALL at
     OLD_LANG=$LANG
     export LANG=en_US.UTF-8    
     LOG_INFO "End of environmental preparation!"
diff --git a/testcases/cli-test/bird/oe_test_birdcl_03.sh b/testcases/cli-test/bird/oe_test_birdcl_03.sh
index 17ed40e76262762fd563c3769a7c8827217c4330..5a526a42a48b7ee406acbafd7cf7cbee015e2441 100755
--- a/testcases/cli-test/bird/oe_test_birdcl_03.sh
+++ b/testcases/cli-test/bird/oe_test_birdcl_03.sh
@@ -43,7 +43,7 @@ EOF
     send "quit\n"
     expect eof
 EOF
-    num=$(wc -l tmp.txt)
+    num=$(wc -l tmp.txt | awk '{print $1}')
     if [[ "${num}" -gt 0 ]]; then
         echo "aa" | grep "aa"
     else
@@ -57,7 +57,7 @@ EOF
     send "quit\n"
     expect eof
 EOF
-    num=$(wc -l tmp.txt)
+    num=$(wc -l tmp.txt | awk '{print $1}')
     if [[ "${num}" -gt 0 ]]; then
         echo "aa" | grep "aa"
     else
@@ -71,7 +71,7 @@ EOF
     send "quit\n"
     expect eof
 EOF
-    num=$(wc -l tmp.txt)
+    num=$(wc -l tmp.txt | awk '{print $1}')
     if [[ "${num}" -gt 0 ]]; then
         echo "aa" | grep "aa"
     else