From: Simon Ruderich <simon@ruderich.org>
Date: Mon, 29 Mar 2010 00:48:04 +0000 (+0200)
Subject: lib.sh: Use simpler version in installed() using cut.
X-Git-Url: https://ruderich.org/simon/gitweb/?p=config%2Fdotfiles.git;a=commitdiff_plain;h=ce1f5a9cc34b3ca64f493cbdce22abc657eea362

lib.sh: Use simpler version in installed() using cut.
---

diff --git a/lib.sh b/lib.sh
index 1862444..045af4c 100644
--- a/lib.sh
+++ b/lib.sh
@@ -11,11 +11,7 @@ unset LS_COLORS
 # Check if the given program is installed. Returns 0 if it exists, 1
 # otherwise; so it can be used in if.
 installed() {
-    # Thanks to Rado in #awk on Freenode (2010-03-29 01:34) for the END tip to
-    # also work with empty stdin, and to prince_jammys in #awk on Freenode
-    # (2010-03-29 02:20) for a shorter syntax for "$0 !~".
-    which $1 2>&1 | awk '{ if (!/^\//) exit 1 }
-                         END { if (NR == 0) exit 1 }'
+    [ x`which $1 2>&1 | cut -c 1` = x/ ] || return 1
 }
 
 # Print the current OS. The following OS are supported at the moment: