Extract filename, extension and dir in bash, Refer to http://stackoverflow.com/questions/965053/extract-filename-and-extension-in-bash

extract.sh

#!/bin/bash

full_path="/var/www/public/ch1.sec1.index.html"
dir=${full_path%/*}
filename=$(basename $full_path)
filename_with_ext=${full_path##*/}
filename_without_ext=${filename_with_ext%.*}
ext=${full_path##*.}

echo "Full path: $full_path" # /var/www/public/ch1.sec1.index.html
echo "Dir: $dir" # /var/www/public
echo "File name: $filename_with_ext" # ch1.sec1.index.html
echo "File name without ext: $filename_without_ext" # ch1.sec1.index
echo "Ext: $ext" # html