From 151872282fe08811065beef3089489d34dcf4c7c Mon Sep 17 00:00:00 2001
From: rupa <rupa@lrrr.us>
Date: Tue, 21 Jul 2009 15:13:38 -0400
Subject: [PATCH] protect against a malformed regex deleting your

---
 z.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/z.sh b/z.sh
index ce02ddb..c18d4f7 100644
--- a/z.sh
+++ b/z.sh
@@ -124,8 +124,12 @@ z() {
     } else if( ncx ) output(nocase, ncx, common(nocase, a, 1))
    }
   ' $datafile)"
-  mv -f $datafile.tmp $datafile
-  [ "$cd" ] && cd "$cd"
+  if [ $? -gt 0 ]; then
+   rm -f $datafile.tmp
+  else
+   mv -f $datafile.tmp $datafile
+   [ "$cd" ] && cd "$cd"
+  fi
  fi
 }
 # tab completion