From: Colin Watson <cjwatson@chiark.greenend.org.uk>
Date: Fri, 11 Apr 2003 15:09:40 +0000 (+0000)
Subject: pwhich: Cope with zero-length elements in $PATH.
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~cjwatson/git?p=bin.git;a=commitdiff_plain;h=e3c3f538470a3ef7df4289f63841b8c9c9571523;ds=sidebyside

pwhich: Cope with zero-length elements in $PATH.
---

diff --git a/pwhich b/pwhich
index 30d4c67..ebb54c3 100755
--- a/pwhich
+++ b/pwhich
@@ -14,7 +14,10 @@ for PROGRAM in "$@"; do
    ;;
   *)
    for ELEMENT in $PATH; do
-    if [ -x "$ELEMENT/$PROGRAM" ]; then
+    if [ -z "$ELEMENT" ]; then
+     ELEMENT=.
+    fi
+    if [ -f "$ELEMENT/$PROGRAM" ] && [ -x "$ELEMENT/$PROGRAM" ]; then
      printf '%s\n' "$ELEMENT/$PROGRAM"
      RET=0
      break