diff -Nrup a/tools/lirc-config-tool b/tools/lirc-config-tool
--- a/tools/lirc-config-tool	2016-10-27 14:11:14.000000000 +0200
+++ b/tools/lirc-config-tool	2023-05-04 06:15:31.262447114 +0200
@@ -15,9 +15,9 @@ declare -a  BAD_LIRCD_KEYS      # Button
 declare -a  DUPLICATE_KEYS
 declare -a  GOOD_KEYS
 declare -a  GOOD_KEYS=( $( irrecord -l |
-                               egrep '^KEY_|BTN_LEFT|BTN_RIGHT' |
-                               egrep -v 'KEY_KP[0-9]' |
-                               egrep -v 'KEY_NUMERIC_[0-9]')
+                               grep -E '^KEY_|BTN_LEFT|BTN_RIGHT' |
+                               grep -E -v 'KEY_KP[0-9]' |
+                               grep -E -v 'KEY_NUMERIC_[0-9]')
 )
 GOOD_KEYS+=('MOUSE_NW' 'MOUSE_N' 'MOUSE_NE'
             'MOUSE_W' 'MOUSE_E' 'MOUSE_SW' 'MOUSE_SE')