Rename all files in the current directory

script.sh

#!/bin/bash
#
#$ -j y
#$ -S /bin/bash
#$ -cwd

## the next line selects the partition/queue
#SBATCH -p short1

## the next line selects the number of nodes
#SBATCH -N 1

## the next line selects the number of CPUs
#SBATCH -n 1

## the next line selects the memory size
#SBATCH --mem=1G

## the next line selects the walltime
#SBATCH -t 1:00:00

## the next lines are used to mail the user
## valid type values are BEGIN, END, FAIL, REQUEUE, and ALL (any state change).
##SBATCH --mail-type=ALL
##SBATCH --mail-user=icaoberg@cmu.edu

for FILE in *
do
	if [ -f $FILE ]; then
		echo mv -v "$FILE" `echo $FILE | tr ' ' '_' | tr -d '[{}(),\!]' | tr -d "\'" | tr '[A-Z]' '[a-z]'`
		mv -v "$FILE" `echo $FILE | tr ' ' '_' | tr -d '[{}(),\!]' | tr -d "\'" | tr '[A-Z]' '[a-z]'`
	fi
done