add trap handling

borghelper.sh

@@ -4,6 +4,8 @@
 ## borg helper script for viewing and restoring backups
 #
 
+### trap
+trap trapExit 1 2 3 6
 
 ### functions
 consoleError() {
@@ -16,6 +18,11 @@ textblock() {
     printf "%s\n" "$1" | fold -w "$width" -s
 }
 
+trapExit () {
+    printf "%s\nScript execution terminated via signal.\n\n%s" "$err" "$norm"
+    exit 99
+}
+
 
 ### text formatting presets
 err=$(tput bold)$(tput setaf 1)