RemoteInstall script for NXThemes Installer on Linux

RemoteInstallNXTheme.sh

#!/bin/bash
#If used on WSL mind the line endings, only use LF (unix-style)
echo "RemoteInstall for NXThemeInstaller by exelix"
echo "Tested on Installer 2.0.1, may break for future versions (hopefully not)"
IPADDR=$1
FILENAME=$2

if [ -z "$FILENAME" ] || [ -z "$IPADDR" ]
then
    echo "Usage $0 [IpAddress] [fileName]"
	echo "only nxtheme and szs files are supported"
	exit
fi

if [ ! -f "$FILENAME"  ]; then
    echo "$FILENAME not found!"
	exit
fi

FILESIZE=$(stat -c%s "$FILENAME")
echo "Size of $FILENAME = $FILESIZE bytes."

printf "theme\x0\x0\x0" > __tmp__theme 
#TODO: detect endianness and write proper size
printf "0: %.8x" $FILESIZE | sed -E 's/0: (..)(..)(..)(..)/0: \4\3\2\1/' | xxd -r -g0 >>__tmp__theme
# for Big Endian: printf "0: %.8x" $FILESIZE | xxd -r -g0 >>__tmp__theme
cat $FILENAME >> __tmp__theme

echo "Response from $IPADDR: "
cat __tmp__theme | nc $IPADDR 5000

rm __tmp__theme
echo "."