From cd114eec94fd07e831ef6c70b7732408d0a59e90 Mon Sep 17 00:00:00 2001
From: Tom Ryder <tom@sanctum.geek.nz>
Date: Fri, 26 May 2017 17:48:49 +1200
Subject: Correct default behaviour for bd() with no args

---
 sh/shrc.d/bd.sh | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

(limited to 'sh')

diff --git a/sh/shrc.d/bd.sh b/sh/shrc.d/bd.sh
index 2dc21173..7901e115 100644
--- a/sh/shrc.d/bd.sh
+++ b/sh/shrc.d/bd.sh
@@ -1,14 +1,17 @@
 # Move back up the directory tree to the first directory matching the name
 bd() {
 
-    # Check argument count
-    if [ "$#" -gt 1 ] ; then
-        printf >&2 'bd(): Too many arguments\n'
-        return 2
-    fi
+    # Check argument count; default to ".."
+    case $# in
+        0) set -- .. ;;
+        1) ;;
+        *)
+            printf >&2 'bd(): Too many arguments\n'
+            return 2
+    esac
 
     # Look at argument given; default to going up one level
-    case ${1:-..} in
+    case $1 in
 
         # If it has a leading slash or is . or .., don't touch the arguments
         /*|.|..) ;;
-- 
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