If PROMPT_COMMAND is not empty, prepend to it instead of replacing it

eliben · Jul 18, 2018 · 33300fc · 33300fc
1 parent a632316
commit 33300fc
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/2016/persistent-history/add-persistent-history.sh b/2016/persistent-history/add-persistent-history.sh
@@ -33,4 +33,9 @@ run_on_prompt_command()
     log_bash_persistent_history
 }
 
-PROMPT_COMMAND="run_on_prompt_command"
+if [ "$PROMPT_COMMAND" = "" ]
+then
+    PROMPT_COMMAND="run_on_prompt_command"
+else
+    PROMPT_COMMAND="run_on_prompt_command; ""$PROMPT_COMMAND"
+fi