[vsemaska]

OK, I think I've got it. Change the mv command to:

/bin/mv "${str}.mp3" "${str2}.mp3"

[LinuxDummie]

opps, didn't realize this thread was two pages.

/bin/cp "${str}.mp3" "${str2}.mp3"
+ /bin/cp 'Tool\ -\ 10\,000\ days\ \[01\]\ vicarious.mp3' Tool_-_10-000_days_01_vicarious.mp3
/bin/cp: cannot stat `Tool\\ -\\ 10\\,000\\ days\\ \\[01\\]\\ vicarious.mp3': No such file or directory

Still not working for me.

[vsemaska]

Those backslashes are messing things up. My tests on my Linux system without them seems to work. Last thing I can suggest is try it without them as follows:

str="$1"
/bin/cp "${str}.mp3" "${str2}.mp3"

[LinuxDummie]

Wow, that seems to work lovely

I tried that before but I think the difference was, I wasn't using quotes around ${str}.mp3

Thank you very much for your help, I appreciate it.

[vsemaska]

Glad to hear it worked. Now if you want to get rid of that loop to build str2 and let the Linux utilities do the work for you use this:

let len=${#1}-4
tmp="`echo "$1:$len" | awk -F: '{print substr($1,1,$2)}'`"
str2="`echo "$tmp" | sed -e 's/ /_/g' -e 's/\[//g' -e 's/\]//g' -e 's/,/-/g'`"

Your assignment is to figure out what those commands do.

[LinuxDummie]

That code is pretty scary

[vsemaska]

Basically:

var="`<pgm>`" means execute <pgm> and assign its output to var.

var="`<pgm1> | <pgm2>`" means execute <pgm1> sending its output (pipe) to <pgm2> as input. The output of <pgm2> is assigned to var.

So:
tmp="`echo "$1:$len" | awk -F: '{print substr($1,1,$2)}'`"
uses utility awk to extract the left part of the filename, minus the .rpm

str2="`echo "$tmp" | sed -e 's/ /_/g' -e 's/\[//g' -e 's/\]//g' -e 's/,/-/g'`"
uses utility sed (stream editor) to substitute one character for another. The -e's means the following are sed scripts which in this case we're using the substitute command 's' where:
' ' is replaced with '_', '[' is replaced with nothing (removed), ']' is replaced with nothing, and ',' is replaced with '-'. The 'g' at the end of each substitute command means global, replace all occurrences.

Typical way to feed utilities input is to use 'echo' piping (|) its output to the utility.

Hope that helps.