diff --git a/net/transmission/x2t.sh b/net/transmission/x2t.sh
new file mode 100644
index 0000000..76c8772
--- /dev/null
+++ b/net/transmission/x2t.sh
@@ -0,0 +1,127 @@
+#!/bin/bash
+
+USER="HTTP_USER"
+PASSWORD="HTTP_PASSOWRD"
+RPC="https://home.example.com/jsonrpc"
+TOKEN="ARIA2_TOKEN"
+
+DOWNLOAD_URLS=(
+    https://remote.example.com/downloads/
+    https://cdn1.example.com/downloads/
+    https://cdn2.example.com/downloads/
+    https://cdn3.example.com/downloads/
+    https://cdn4.example.com/downloads/
+)
+
+
+check_sub(){
+	echo "check sub."
+    SAVEIFS=$IFS # setup this case the space char in file name.
+    IFS=$(echo -en "\n\b")
+	for subdir in $(find -maxdepth 1 -type d |grep ./ |cut -c 3-); 
+        do 
+            echo $subdir
+            cd "$subdir"
+            convert_to_jpg
+            cd ..
+    done
+    IFS=$SAVEIFS
+}
+
+convert_to_jpg(){
+    
+    for ext in jpg JPG bmp BMP png PNG; do
+        echo "ext is $ext"
+        if [ ! $(find . -maxdepth 1 -name \*.$ext | wc -l) = 0 ]; 
+	    then 
+		    x2jpg $ext
+	    fi
+    done
+
+    check_sub # check if has sub directory.
+}
+
+x2jpg(){
+    if [ ! -d origin ];then
+	mkdir origin
+    fi
+    if [ ! -d /tmp/jpg ]; then
+
+	    mkdir /tmp/jpg
+    fi
+
+    tmp_fifofile="/tmp/$$.fifo"
+    mkfifo $tmp_fifofile      # create a fifo type file.
+    exec 6<>$tmp_fifofile      # point fd6 to fifo file.
+    rm $tmp_fifofile
+
+
+    thread=10 # define numbers of threads.
+    for ((i=0;i<$thread;i++));do 
+    echo
+    done >&6 # actually only put $thread RETURNs to fd6.
+
+    for file in ./*.$1;do
+    read -u6 
+    {
+        echo 'convert -quality 80' "$file" /tmp/jpg/"${file%.*}"'.jpg'
+        convert -limit memory 64 -limit map 128 -quality 80 "$file" /tmp/jpg/"${file%.*}".jpg
+        mv "$file" origin
+        echo >&6
+    } &
+    done
+
+    wait # wait for all child thread end.
+    exec 6>&- # close fd6
+
+    mv /tmp/jpg/* .
+    rm -r origin
+
+    echo 'DONE!'
+}
+
+TYPE=$1
+file=$2
+
+tmpdir=$(mktemp -d)
+
+if [ "$TYPE"="-z" ]; then
+    DIR="${file%%.zip*}"
+    echo "unzip $file -d $tmpdir";
+    unzip "$file" -d $tmpdir # unzip to a tmp directory.
+elif [ "$TYPE"="-r" ]; then
+    DIR="${file%%.rar*}"
+    echo "unrar x $file $tmpdir";
+    mv "$file" tmp.rar
+    unrar x tmp.rar $tmpdir # unrar to a tmp directory.
+    mv tmp.rar "$file"
+fi
+
+if [ $(ls $tmpdir | wc -l) = 1 ]; then # check if has folders, and mv the unziped directory as same name with the zip file.
+    DIR2=$(ls $tmpdir)
+    mv "$tmpdir/$DIR2" "$DIR"
+    rmdir $tmpdir
+else
+    mv $tmpdir "$DIR"
+fi	
+
+echo $DIR
+if [ -d "$DIR" ]; then
+    cd "$DIR"
+    convert_to_jpg # convert process.
+    cd ..
+    echo "tar cvf $DIR.tar $DIR" 
+    tar cvf "$DIR.tar" "$DIR" --force-local # tar the directory.
+    rm -r "$DIR"
+    LINK=""
+    for URL in "${DOWNLOAD_URLS[@]}"; do
+        if [ -z "$LINK" ]; then
+            LINK="\"$URL$DIR.tar\""
+        else
+            LINK="$LINK, \"$URL$DIR.tar\""
+        fi
+    done
+    curl -s -v --user $USER:$PASSWORD $RPC -X POST -d "[{\"jsonrpc\":\"2.0\",\"method\":\"aria2.addUri\",\"id\":1,\"params\":[\"token:$TOKEN\",[$LINK],{\"split\":\"10\",\"max-connection-per-server\":\"10\",\"seed-ratio\":\"1.0\"}]}]"
+else
+    echo "$DIR not exist."
+fi