[gentoo-user] Bash Pattern Matching Syntax

[gentoo-user] Bash Pattern Matching Syntax

[Drew Tomlinson]

I want to list the files in a directory that end in ".jpg" irregardless 
of case.  Thus after reading the bash man page, it seems I should be 
able to issue a command something along the lines of "ls [*.[JjPpGg]]"  
or "ls *.[JjPpGg]" but neither of these work and return a "No such file 
or directory" message.  What is the correct syntax for what I'm trying 
to do?

Thanks,

Drew

-- 
Visit The Alchemist's Warehouse
Magic Tricks, DVDs, Videos, Books, & More!

http://www.alchemistswarehouse.com

-- 
gentoo-user@gentoo.org mailing list

Re: [gentoo-user] Bash Pattern Matching Syntax

[Michael Kjorling]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 2005-10-15 15:25 -0700, drew@mykitchentable.net wrote:
> I want to list the files in a directory that end in ".jpg" irregardless of 
> case.  Thus after reading the bash man page, it seems I should be able to 
> issue a command something along the lines of "ls [*.[JjPpGg]]"  or "ls 
> *.[JjPpGg]" but neither of these work and return a "No such file or 
> directory" message.  What is the correct syntax for what I'm trying to do?

ls *.[jJ][pP][gG]

Each [] group matches a single character, so "ls *.[JjPpGg]" is "list
all files that end in a period followed by one of J, j, P, p, G or g".
Character ordering is irrelevant.

Alternatively, you could do:

ls | grep -i '.jpg$'

Or:

find . -maxdepth 1 -iname '*.jpg'

The find or ls-pipe-grep versions get a LOT cleaner when you have many
known characters with unknown case in the file name, but don't work if
you need to discriminate based on case for some characters and not by
others.

- -- 
Michael Kjörling, michael@kjorling.com - http://michael.kjorling.com/
* ASCII Ribbon Campaign: Against HTML Mail, Proprietary Attachments *
* ..... No bird soars too high if he soars with his own wings ..... *
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)

iD8DBQFDUYTjdY+HSb3praYRAulaAJ9P1LDLFnmu33HTTHFeXZwAGrAwRACfTmGF
8rnOP4hrj6gFZaoaArSqwjo=
=LuDd
-----END PGP SIGNATURE-----
-- 
gentoo-user@gentoo.org mailing list

Re: [gentoo-user] Bash Pattern Matching Syntax

[Drew Tomlinson]

On 10/15/2005 3:38 PM Michael Kjorling wrote:

>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>On 2005-10-15 15:25 -0700, drew@mykitchentable.net wrote:
>  
>
>>I want to list the files in a directory that end in ".jpg" irregardless of 
>>case.  Thus after reading the bash man page, it seems I should be able to 
>>issue a command something along the lines of "ls [*.[JjPpGg]]"  or "ls 
>>*.[JjPpGg]" but neither of these work and return a "No such file or 
>>directory" message.  What is the correct syntax for what I'm trying to do?
>>    
>>
>
>ls *.[jJ][pP][gG]
>
>Each [] group matches a single character, so "ls *.[JjPpGg]" is "list
>all files that end in a period followed by one of J, j, P, p, G or g".
>Character ordering is irrelevant.
>
>Alternatively, you could do:
>
>ls | grep -i '.jpg$'
>
>Or:
>
>find . -maxdepth 1 -iname '*.jpg'
>
>The find or ls-pipe-grep versions get a LOT cleaner when you have many
>known characters with unknown case in the file name, but don't work if
>you need to discriminate based on case for some characters and not by
>others.
>

Thank you very much for your explanation.  This works well!!!

Cheers,

Drew

-- 
Visit The Alchemist's Warehouse
Magic Tricks, DVDs, Videos, Books, & More!

http://www.alchemistswarehouse.com

-- 
gentoo-user@gentoo.org mailing list