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Welcome to Panela, Matt Harrison's take on mostly Open Source, Linux, Python, innovation in those areas, other buzzwords and Dick Proenneke. It comes complete with the illustrations as needed. Note the opinions expressed here are merely my opinions and not the opinions of my employer.
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Programming tools I like - ack
No, that's not a misspelling in the title. I switched back to gentoo on my lappy, so while re-constructing my environment I found I forgot to install this swell little tool. I've been meaning to mention ack for a while. Ack is a nice little command line perl script, that describes itself "as a replacement for 99% of the uses of grep". If you find yourself typing anything similar to find . | xargs grep foo, you owe it to yourself to try ack, if you haven't already.
or if you want something a little more python-y, grin is virtually
identical. I don't actually know if there is any functional difference,
but it can be easy_installed, and that's always nice.
While I appreciate that this isn't really the point of your post, 'grep foo
-R .' does what your example does. Might be worth finding a more
expressive/interesting example (and showing how ack does it better),
because I haven't seen anything to make me check it out yet...
Alternatively, you could switch from bash to zsh. This has superior
filename expansion, including expanding through a directory tree. For
example:
There are plenty of examples on the ack home page at
http://petdance.com/ack/.