basic command pipe question

[Keith G. Robertson-Turner]

Todd Zullinger wrote:
> Sam Varshavchik wrote:

>> WTF????????
>> 
>> Is everyone on drugs, here?

> In the current political climate I feel it's best to refrain from 
> answering that.  (Insert dope-smoking smiley here. :)

>> Or did:
>> 
>> rm -f *.zip
>> 
>> suddenly stop working, for some stupid reason?

> I believe the wrinkle the OP had was trying to match case 
> insensitively.  The simplest method for that is
> 
> rm -f *.[Zz][Ii][Pp]
> 
> Which has already been posted.
> 
> Other than that, the other methods are just good ways to illustrate 
> how many ways you can chain together commands.  It's just a fun 
> exercise. :)

Here's another, that ensures the file has both the right extension *and*
content:

rm \
`find . -name "*.[Zz][Ii][Pp]" | \
file -f - | \
grep "Zip archive" | \
sed -e "s/: .*//"`

(force switch omitted)

So this will not delete zip compressed "xpi" files, nor extensionless
zip files, nor non-zip files with (for whatever reason) zip extensions.

To catch all zip files regardless of extension (or lack thereof) you
would simply omit the "-name" argument to "find".

--
K.