diff --git a/py-json/LANforge/lfcli_base.py b/py-json/LANforge/lfcli_base.py
index b9b589a5..360c5cc3 100644
--- a/py-json/LANforge/lfcli_base.py
+++ b/py-json/LANforge/lfcli_base.py
@@ -555,6 +555,10 @@ class LFCliBase:
                          timestamp):
         return (timestamp - datetime.datetime(1970,1,1)).total_seconds()*1000
 
+    def replace_special_char(self,
+                             str):
+        return str.replace('+', ' ').replace('_', ' ')
+
     Help_Mode = """Station WiFi modes: use the number value below:
                 auto   : 0,
                 a      : 1,
diff --git a/py-json/realm.py b/py-json/realm.py
index 6a2bd25f..cd04fe8c 100755
--- a/py-json/realm.py
+++ b/py-json/realm.py
@@ -1191,6 +1191,7 @@ class L3CXProfile(LFCliBase):
                     pass
 
         #Step 1, column names
+        col_names=[self.replace_special_char(x) for x in col_names]
         fields = ",".join(col_names)
         header_row=col_names
         # Step 2, monitor columns
diff --git a/py-scripts/regression_test.sh b/py-scripts/regression_test.sh
index ed32fc61..c5650965 100755
--- a/py-scripts/regression_test.sh
+++ b/py-scripts/regression_test.sh
@@ -8,7 +8,7 @@ SSID_USED="jedway-wpa2-x2048-5-3"
 PASSWD_USED="jedway-wpa2-x2048-5-3"
 RADIO_USED="wiphy1"
 SECURITY="wpa2"
-COL_NAMES="'"'name'"','"'tx bytes'"','"'rx bytes'"','"'dropped'"'"
+COL_NAMES="name,tx_bytes,rx_bytes,dropped"
 
 START_NUM=0
 CURR_TEST_NUM=0
@@ -74,7 +74,7 @@ TEST_DIR="/home/lanforge/report-data/${NOW}"
 mkdir "$TEST_DIR"
 function run_test() {
     for i in "${testCommands[@]}"; do
-        NAME=cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1
+        NAME=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
         CURR_TEST_NAME=${i%%.py*}
         CURR_TEST_NAME=${CURR_TEST_NAME#./*}
         CURR_TEST_NUM="${name_to_num[$CURR_TEST_NAME]}"