diff --git a/bashmarks.sh b/bashmarks.sh
index b77a8c1..29b7135 100644
--- a/bashmarks.sh
+++ b/bashmarks.sh
@@ -1,28 +1,28 @@
 # Copyright (c) 2010, Huy Nguyen, http://www.huyng.com
 # All rights reserved.
-# 
-# Redistribution and use in source and binary forms, with or without modification, are permitted provided 
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted provided
 # that the following conditions are met:
-# 
-#     * Redistributions of source code must retain the above copyright notice, this list of conditions 
+#
+#     * Redistributions of source code must retain the above copyright notice, this list of conditions
 #       and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 #       following disclaimer in the documentation and/or other materials provided with the distribution.
 #     * Neither the name of Huy Nguyen nor the names of contributors
-#       may be used to endorse or promote products derived from this software without 
+#       may be used to endorse or promote products derived from this software without
 #       specific prior written permission.
-#       
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 # WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
-# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
 
-# USAGE: 
+# USAGE:
 # s bookmarkname - saves the curr dir as bookmarkname
 # g bookmarkname - jumps to the that bookmark
 # g b[TAB] - tab completion is available
@@ -33,10 +33,10 @@
 # l - list all bookmarks
 
 # setup file to store bookmarks
-if [ ! -n "$SDIRS" ]; then
+if [ -z "$SDIRS" ]; then
     SDIRS=~/.sdirs
 fi
-touch $SDIRS
+\touch $SDIRS
 
 RED="0;31m"
 GREEN="0;33m"
@@ -85,32 +85,33 @@ function d {
 
 # print out help for the forgetful
 function check_help {
-    if [ "$1" = "-h" ] || [ "$1" = "-help" ] || [ "$1" = "--help" ] ; then
-        echo ''
-        echo 's <bookmark_name> - Saves the current directory as "bookmark_name"'
-        echo 'g <bookmark_name> - Goes (cd) to the directory associated with "bookmark_name"'
-        echo 'p <bookmark_name> - Prints the directory associated with "bookmark_name"'
-        echo 'd <bookmark_name> - Deletes the bookmark'
-        echo 'l                 - Lists all available bookmarks'
-        kill -SIGINT $$
-    fi
+    case $1 in
+        -h|-help|--help)
+            echo
+            echo 's <bookmark_name> - Saves the current directory as "bookmark_name"'
+            echo 'g <bookmark_name> - Goes (cd) to the directory associated with "bookmark_name"'
+            echo 'p <bookmark_name> - Prints the directory associated with "bookmark_name"'
+            echo 'd <bookmark_name> - Deletes the bookmark'
+            echo 'l                 - Lists all available bookmarks'
+            kill -SIGINT $$ ;;
+    esac
 }
 
 # list bookmarks with dirnam
 function l {
     check_help $1
     source $SDIRS
-        
+
     # if color output is not working for you, comment out the line below '\033[1;32m' == "red"
-    env | sort | awk '/^DIR_.+/{split(substr($0,5),parts,"="); printf("\033[0;33m%-20s\033[0m %s\n", parts[1], parts[2]);}'
-    
+    \env | \sort | \awk '/^DIR_.+/{split(substr($0,5),parts,"="); printf("\033[0;33m%-20s\033[0m %s\n", parts[1], parts[2]);}'
+
     # uncomment this line if color output is not working with the line above
-    # env | grep "^DIR_" | cut -c5- | sort |grep "^.*=" 
+    # \env | \grep "^DIR_" | \cut -c5- | \sort | \grep "^.*="
 }
 # list bookmarks without dirname
 function _l {
     source $SDIRS
-    env | grep "^DIR_" | cut -c5- | sort | grep "^.*=" | cut -f1 -d "=" 
+    \env | \grep "^DIR_" | \cut -c5- | \sort | \grep "^.*=" | \cut -f1 -d "="
 }
 
 # validate bookmark name
@@ -144,14 +145,14 @@ function _purge_line {
     if [ -s "$1" ]; then
         # safely create a temp file
         t=$(mktemp -t bashmarks.XXXXXX) || exit 1
-        trap "/bin/rm -f -- '$t'" EXIT
+        trap "\rm -f -- '$t'" EXIT
 
         # purge line
         sed "/$2/d" "$1" > "$t"
-        /bin/mv "$t" "$1"
+        \mv "$t" "$1"
 
         # cleanup temp file
-        /bin/rm -f -- "$t"
+        \rm -f -- "$t"
         trap - EXIT
     fi
 }