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Selecting file names in a shell - one word or another

If you want to select all file names that include the words "cat" or "dog" in them with file name matching, you can do so using curly braces - that's supported by most modern shells as part of what is known as "globbing".

Here's an example - I've just been copying images off my digital camera and I wanted all files from 28th January, 31st January and 1st February - so file names starting P128, P131 and P201, and this is what I wrote:

cp /Volumes/Untitled/DCIM/100OLYMP/P{128,131,201}* .

Sometimes, there is confusion between square brackets and curly braces in file name matching. If I had written
[128,131,201]
I would have been looking for any ONE character from the list in the brackets - so that's a 0 1 2 3 8 or comma (and the specification of the comma 1 and 2 several times would have shown that I didn't realise what I was doing. And if I had written
[128][131][201]
then I would have been looking for a 1 2 or 8 followed by a 1 or 3 (or 1!) followed by s 2 a 0 or a 1

Oh - want to see one of the pictures?

City Square, Nottingham, with Tram
Nottingham at Night - City Centre
(written 2008-02-02)

 
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  [2201] Running straight from the jar, but not from a tar - (2009-05-26)
  [1904] Ruby, Perl, Linux, MySQL - some training notes - (2008-11-23)
  [1902] sstrwxrwxrwx - Unix and Linux file permissions - (2008-11-23)
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  [1764] Yank and Push - copy and move in vi - (2008-08-21)
  [1651] ls command - favourite options - (2008-05-23)
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  [1013] Copy multiple files - confusing error message from cp - (2006-12-30)
  [1012] Moving files between Windows / DOS and Linux / Unix - (2006-12-30)
  [984] Cardinal numbers and magic numbers - (2006-12-14)
  [749] Cottage industry or production line data handling methods - (2006-06-07)
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Selecting file names in a shell - one word or another
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Ive just received an email from myself. Should I be worried?
Paging Martin Noke, who petitions for more trains from Trowbridge to Swindon
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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