Better handle missing PROMPT_COMMAND

webappio · Jul 3, 2019 · 36f8a99 · 36f8a99
1 parent 405d259
commit 36f8a99
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/shell/bash_shell.go b/shell/bash_shell.go
@@ -40,7 +40,7 @@ func (shell *BashShell) Enter() error {
 source ~/.bashrc
 
 if [ -z "${OLD_PROMPT_COMMAND+x}" ]; then
-  OLD_PROMPT_COMMAND="$PROMPT_COMMAND"
+  OLD_PROMPT_COMMAND="${PROMPT_COMMAND:-true}"
 fi
 if [ -z "${OLD_PS1+x}" ]; then
   OLD_PS1="$PS1"