Ron Smith wrote:
> I'm trying to rename some files from the command line but nothing
> gets changed. I think I'm leaving out something; maybe '$_'. Or, I
> have incorrect syntax. I don't get any error message either. I took a
> look at 'man rename', but it doesn't show an example of a loop. I'm
> using the following on the command-line:
>
> perl -e 'for (`ls -1`) { rename filename, newfilename if /\w+$/}'
>
> Can anyone show me the error of my ways?
What are you trying to do here? You're renaming a file called "filename" to
"newfilename" repeatedly.
'filename' and 'newfilename' are so-called 'barewords' here, and are treated
as strings in this context.
Perl has built-in globbing, so shelling to ls is not necessary.
Here's an article discussing the "classic" perl rename script. Why not start
with that?
http://www.evolt.org/article/Renaming_Files_with_Perl/17/351/
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