Regex doesn't work using loop to go through filenames - regex

Question

I've been working on this for a while now and I can't seem to crack it. I have in a folder some files
testing.test.S09E01.720p.HDTV.x264-TWIST
dmscript.sh
I have the script in there to test it before I set it up with download manager to run once an episode has been downloaded.
The script has the following code.
#!/bin/sh
#THIS SCRIPT WILL DETERMINE TV SHOWS AND EPISODES AND MOVE THEM TO THE CORRECT
#FOLDER WHICH WILL ALLOW EITHER SICKBEARD OR COUCHPOTATO TO RENAME AND MOVE THEM
regex="([Ss]?([0-9]{1,2})[-|.]?[x|Ee|]?(\d{2})|(0?\d{1})(\d{2}))"
#where the tv shows will be copied to
tvdir="/volume1/public/NZB/Complete/tv/processed/"
#this was a debug variable to allow me to see where the code fails
num="1"
#will change the * to full path of folder later, for now this works because script is running from
#inside folder
for filename in *
do
if [[ "$filename =~ $regex ]]
then
#display the current filename and the variable number
echo "$filename $num"
#commented on the following code so when the script works I will just uncomment
#mv $filename $tvdir
#change variable to 2, this is to see whether the if test will fail and skip the file
#that doesn't conform to the regex
num="2"
else
echo "nothing of use"
done
However, once I run the code, I get this
testing.test.S09E01.720p.HDTV.x264-TWIST 1
dmscript.sh 2
obviously something goes wrong, as I just want it to display the first in the list above and ignore the other.
I got the regex rule from http://regex101.com/r/qZ2eO9/1 , I ignored the /gim at the end as I am unsure whether this will work in shell, and just stuck with the Ss and Ee so it isn't case sensitive

Answer 1

A few modifications:
(1) fix the \d into [0-9] in the expression.
(2) fix the quotation mark " in the line if [[ "$filename =~ $regex ]]
(3) add fi in the end of the if block
And now the script should work.
regex="([Ss]?([0-9]{1,2})[-|.]?[x|Ee|]?([0-9]{2})|(0?[0-9]{1})([0-9]{2}))"
#where the tv shows will be copied to
tvdir="/volume1/public/NZB/Complete/tv/processed/"
#this was a debug variable to allow me to see where the code fails
num="1"
#will change the * to full path of folder later, for now this works because script is running from
#inside folder
for filename in *
do
if [[ $filename =~ $regex ]]
then
#display the current filename and the variable number
echo "$filename $num"
#commented on the following code so when the script works I will just uncomment
#mv $filename $tvdir
#change variable to 2, this is to see whether the if test will fail and skip the file
#that doesn't conform to the regex
num="2"
else
echo "nothing of use"
fi
done