Convert tabs to spaces in PHP/HTML/CSS/TXT files

expand

#!/bin/sh
# script to convert tabs to spaces in PHP files
# usage: ./expand /path/to/project/directory

echo $(date)

path=${1:-.}

for f in $(find "$path" -type f -name \*.php -o -name \*.html -o -name \*.css -o -name \*.txt -o -name \*.js)
do
	oryginal_file=`cat "$f"`
	expanded_file=`expand -i -t4 "$f"`
	
	if [ "$oryginal_file" != "$expanded_file" ]; then
		echo "$expanded_file" > "$f"
	fi
	
done

echo $(date)

unexpand

#!/bin/sh
# script to convert spaces to tabs in PHP files
# usage: ./unexpand /path/to/project/directory

echo $(date)

path=${1:-.}

for f in $(find "$path" -type f -name \*.php -o -name \*.html -o -name \*.css -o -name \*.txt -o -name \*.js)
do
	oryginal_file=`cat "$f"`
	unexpanded_file=`unexpand -t4 "$f"`
	
	if [ "$oryginal_file" != "$unexpanded_file" ]; then
		echo "$unexpanded_file" > "$f"
	fi
	
done

echo $(date)