bash/rc: improve comment

[config/dotfiles.git] / lessfilter

diff --git a/lessfilter b/lessfilter
index 3570c790eed617c4054e58cb88e2bfe6cbc26f94..442efa99442f4d83ab16b4d05dd8653e31774447 100755 (executable)
--- a/lessfilter
+++ b/lessfilter
@@ -1,15 +1,33 @@
 #!/bin/sh
 
+# Copyright (C) 2011-2014  Simon Ruderich
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+set -eu
+
 case "$1" in
     # Color diff files.
     *.diff | *.patch)
-        < "$1" colordiff
+        colordiff <"$1"
         ;;
     *)
         # Display directory contents.
-        if [ -d "$1" ]; then
-            echo "=> Contents of $1:"
-            ls "$1"
+        if test -d "$1"; then
+            printf '=> Contents of %s:\n' "$1"
+            ls -- "$1"
             exit 0
         fi