Simple file rename and deletion

[acwbrat]

I am new to programming and wanted to know if I could get some assistance on this shell programming problems I wrote two script files: a rename file bash script file that suppose to check the input and output files and a script that deletes files that haven't been used on a directory for a long time. However, I ran into some complications in my search and compiling on the script. I have tried to get some help from other forums and of course, I'm getting the run around.

Here are my codes:
code 1

#!/bin/bash

files=$(ls -1 | grep .mp3)

for x in $files
do
mv $x band_song$x
done
.................................................. ....................
code 2

#!/bin/bash
for X in *.html
do
rm "$X";
done

[ghostdog74]

I am new to programming

i recommend you readthis.

#!/bin/bash

files=$(ls -1 | grep .mp3)

for x in $files
do
mv $x band_song$x
done
......................................................................

use shell expansion instead of grepping...

for x in *mp3
...

#!/bin/bash
for X in *.html
        do
                rm "$X";
        done

just do rm *html