diff --git a/tmux/tmux.conf b/tmux/tmux.conf
index f9be927..7d646ff 100644
--- a/tmux/tmux.conf
+++ b/tmux/tmux.conf
@@ -1,5 +1,6 @@
 set-option -g prefix C-t
 set-option -g allow-rename off
+set-option -g escape-time 0
 set-window-option -g allow-rename off 
 bind-key h swap-window -t -1
 bind-key l swap-window -t +1
diff --git a/zsh/zshrc b/zsh/zshrc
index 0822465..ce4f26b 100644
--- a/zsh/zshrc
+++ b/zsh/zshrc
@@ -126,16 +126,30 @@ source $DOTCONFDIR/dotconf.sh
 
 ### Shell function definition
 
+function _sortimages () {
+    SOURCE="$1"
+    TARGET_PREFIX="$2"
+    DRYRUN=$3
+
+    TARGET=${TARGET_PREFIX}".jpg"
+    if [ $(echo "$TARGET_PREFIX" | awk '{print length}') -ge 15 ]; then
+        echo mv $SOURCE $TARGET;
+        if [ $DRYRUN = 0 ]; then
+            mv $SOURCE $TARGET;
+            chmod 640 $TARGET;
+        fi
+    else
+        echo "Cannot read Exif information, skipping... $SOURCE"
+    fi
+}
+
 function sortimages () {
     case $1 in
 	-d)
         shift
 		for file in $@; do
 		    DST=`identify -format "%[Exif:DateTimeOriginal]" $file | head -1 | awk '{print $1":"$2}' | awk -F':' '{print $1$2$3"-"$4$5$6}' | awk -F'.' '{print $1 }' | awk -F'::' '{print $1}'`
-		    DST=`echo $DST.jpg`
-		    echo mv $file $DST;
-		    mv $file $DST;
-		    chmod 640 $DST;
+            _sortimages $file $DST 0
 		done
 		;;
 	*)
@@ -144,11 +158,10 @@ function sortimages () {
 		echo "   <file-selection> : for example *.JPG"
 		echo "   <suffix>         : rename to "'$date'"-'$time'-suffix.jpg"
 		echo "   <options>        : -d   rename the files"
-		echo -n
+		echo 
 		for file in $@; do
 		    DST=`identify -format "%[Exif:DateTimeOriginal]" ${file} | head -1 | awk '{print $1":"$2}' | awk -F':' '{print $1$2$3"-"$4$5$6}' | awk -F'.' '{print $1 }' | awk -F'::' '{print $1}'`
-		    DST=${DST}'.jpg'
-		    echo mv ${file} ${DST};
+            _sortimages $file $DST 1
 		done
 		;;
 esac
@@ -176,9 +189,13 @@ compdef st=ssh
 
 ### Alias configuration
 
+alias dc='docker-compose --env-file docker-compose.env'
+alias dstat='dstat -tclmsgdnpy'
+
 if [[ $(uname) = "Linux" ]]; then
     alias em='emacs -nw'
     alias ec='emacsclient -c'
+    alias gl='glances -b'
     alias grep='grep --color'
     alias ls='ls --color'
     alias l='ls -lh --color'