X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=lib.sh;h=93c45cf6645961d1d5b2de75c6cf5b3c8ea943a0;hb=cbefa187e16a92224a527819d9cdb02ea5979573;hp=da00cce8d2c9be6e4b13f77bbe638bb8718eb1de;hpb=6a5e872d70869768816fc9461b8c2b4a2087d046;p=config%2Fdotfiles.git

diff --git a/lib.sh b/lib.sh
index da00cce..93c45cf 100644
--- a/lib.sh
+++ b/lib.sh
@@ -11,12 +11,14 @@ 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() {
-    which $1 | grep -E '^/' > /dev/null
+    which $1 2>&1 | perl -ne 'if (not m{^/}) { exit 1 }'
 }
 
-# Prints the current OS. Supported are Debian (debian), Gentoo (gentoo) and
-# Mac OS X (darwin) at the moment. If an unsupported OS is used an error is
-# printed.
+# Print the current OS. The following OS are supported at the moment:
+# - Debian (debian)
+# - Gentoo (gentoo)
+# - Mac OS X (darwin)
+# If an unsupported OS is used an error is printed.
 os() {
     if [ -f /etc/debian_version ]; then
         echo debian