Определение существования комманды в Линуксе и русского десктопа


#!/bin/sh
echo '\n'
lsb_release_true=$(which lsb_release 2> /dev/null)
if [ $lsb_release_true ]; then
	echo found lbs_release command on system
else
	echo not found lbs_release command on system
fi
echo '\n'
if [ -r ~//Рабочий\ стол ]; then
	echo found russian desktop on system
else
	echo not found russian desktop on system
fi
echo '\n'