diff --git a/profile.sh b/profile.sh
index dec50ae..e90acca 100644
--- a/profile.sh
+++ b/profile.sh
@@ -36,7 +36,7 @@
 # ------------------------------------------------------------------------------
 
 if [[ ! $SHELL =~ bash|zsh ]]; then
-    echo "That environmet script is designed to be used with bash or zsh being the shell."
+    echo "That environment script is designed to be used with bash or zsh being the shell."
     echo "Please consider using bash or zsh instead, or patch me ;)!"
     return 1
 fi
@@ -46,7 +46,7 @@ fi
 # ------------------------------------------------------------------------------
 pathremove()
 {
-    local ifs=':'
+    local IFS=':'
     local newpath
     local dir
     local pathvar=${2:-PATH}
@@ -79,23 +79,23 @@ pathappend()
 # ------------------------------------------------------------------------------
 
 # Store script's path (realpath -s resolve symlinks if profile.sh is a symlink)
-if [[ -z $PROFILE_PATH ]]; then
-    export MYPATH=$(dirname $(realpath -s $0))
+if [[ -z "$PROFILE_PATH" ]]; then
+    export MYPATH=$(dirname "$(realpath -s "$0")")
 else
-    export MYPATH=$PROFILE_PATH
+    export MYPATH="$PROFILE_PATH"
 fi
-if [[ ! -e $MYPATH/profile.sh ]]; then
+if [[ ! -e "$MYPATH/profile.sh" ]]; then
     echo "[ Warning ] Path detection failed, trying to use pwd..."
     MYPATH=$(pwd)
-    if [[ ! -e $MYPATH/profile.sh ]]; then
+    if [[ ! -e "$MYPATH/profile.sh" ]]; then
         echo "[ Error ] Impossible to determine installation path, pretty much nothing will work."
     fi
 fi
 
-if [[ ! -s $MYPATH/version ]]; then
+if [[ ! -s "$MYPATH/version" ]]; then
     echo "[ Warning ] Impossible to determine running version of profile, your installation might be broken."
 fi
-export PROFVERSION=$(cat $MYPATH/version)
+export PROFVERSION=$(cat "$MYPATH"/version)
 
 # Build PATH environment variable
 if [[ $EUID -eq 0 ]]; then
@@ -175,6 +175,7 @@ if [[ $INTERACTIVE ]]; then
     alias du='du -ch'
 
     alias sdu='du -sk ./* | sort -n'
+    alias hdu='du -hs ./* | sort -H'
 
     # Define PS1
     trap 'timer_start' DEBUG