Obfuscating runs

#!/bin/bash
#SBATCH --exclusive
#SBATCH --nodes=1
#SBATCH --mem=10000
#SBATCH --comment="cv testjob"
#SBATCH -p student

RND=`< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-32};echo;`
ln -s `which sleep` $RND
echo "Using $RND as binary name"

./$RND 10