diff --git a/src/end_processes b/src/end_processes
index 69e6097e..f08adb16 100755
--- a/src/end_processes
+++ b/src/end_processes
@@ -5,7 +5,7 @@
 # works by scanning processes for tagui keywords and killing them one by one
 
 while true; do
-    php_process_id="$(ps -x | grep tagui_chrome\.php | grep -v 'grep tagui_chrome\.php' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    php_process_id="$(ps x | grep tagui_chrome\.php | grep -v 'grep tagui_chrome\.php' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$php_process_id" ]; then
         kill $php_process_id > /dev/null 2>&1
     else
@@ -14,7 +14,7 @@ while true; do
 done
 
 while true; do
-    chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$chrome_process_id" ]; then
         kill $chrome_process_id > /dev/null 2>&1
     else
@@ -23,7 +23,7 @@ while true; do
 done
 
 while true; do
-    sikuli_process_id="$(ps -x | grep tagui\.sikuli | grep -v 'grep tagui\.sikuli' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    sikuli_process_id="$(ps x | grep tagui\.sikuli | grep -v 'grep tagui\.sikuli' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$sikuli_process_id" ]; then
         kill $sikuli_process_id > /dev/null 2>&1
     else
@@ -32,7 +32,7 @@ while true; do
 done
 
 while true; do
-    python_process_id="$(ps -x | grep tagui_py\.py | grep -v 'grep tagui_py\.py' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    python_process_id="$(ps x | grep tagui_py\.py | grep -v 'grep tagui_py\.py' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$python_process_id" ]; then
         kill $python_process_id > /dev/null 2>&1
     else
@@ -41,7 +41,7 @@ while true; do
 done
 
 while true; do
-    r_process_id="$(ps -x | grep tagui_r\.R | grep -v 'grep tagui_r\.R' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    r_process_id="$(ps x | grep tagui_r\.R | grep -v 'grep tagui_r\.R' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$r_process_id" ]; then
         kill $r_process_id > /dev/null 2>&1
     else
@@ -50,7 +50,7 @@ while true; do
 done
 
 while true; do
-    tagui_process_id="$(ps -x | grep tagui/src | grep -v 'grep tagui/src' | grep -v 'end_processes' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+    tagui_process_id="$(ps x | grep tagui/src/ | grep -v 'grep tagui/src/' | grep -v 'end_processes' | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
     if [ -n "$tagui_process_id" ]; then
         kill $tagui_process_id > /dev/null 2>&1
     else
diff --git a/src/tagui b/src/tagui
index 9018821c..3263dbd7 100755
--- a/src/tagui
+++ b/src/tagui
@@ -297,14 +297,14 @@ if [ "$chrome_started" == "Darwin" ]; then
 if ! [ -f "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" ]; then
 echo "ERROR - cannot find Chrome at \"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome\""
 echo "Chrome is at a non-standard location on your macOS, raise an issue on TagUI GitHub page"; exit 1; fi
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome $chrome_switches $window_size $headless_switch > /dev/null 2>&1 &
 else
 if ! type "$chrome_command" > /dev/null; then
 echo "ERROR - cannot find Chrome command \"$chrome_command\""
 echo "update chrome_command setting in tagui/src/tagui and make sure symlink to command is created"; exit 1; fi
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 $chrome_command $chrome_switches $window_size $headless_switch > /dev/null 2>&1 &
 fi
@@ -334,10 +334,10 @@ if [ -f "tagui_chrome.in" ]; then echo "finish" > tagui_chrome.in; fi
 
 # kill chrome processes by checking which os the processes are started on 
 if [ "$chrome_started" == "Darwin" ] && [ "$tagui_speed_mode" == false ]; then
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 else if [ -n "$chrome_started" ] && [ "$tagui_speed_mode" == false ]; then
-chrome_process_id="$(ps -x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
+chrome_process_id="$(ps x | grep remote-debugging-port=9222 | grep tagui_user_profile | sed -e 's/^[ ]*//' | cut -d' ' -f 1 | sort -nur | head -n 1)"
 if [ -n "$chrome_process_id" ]; then kill $chrome_process_id; fi
 fi; fi