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Old 02-09-2006, 10:53 AM   #1
Akhran
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Registered: Aug 2005
Distribution: Debian 'lenny'
Posts: 208

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Question on aptitude search pattern


Sorry for the repeated post... how do I delete the posting?

Thanks.


I'm searching for a package called 'libstdc++2.10-glibc2.2'.
Code:
aptitude search libstdc++2.10-glibc2.2
or
Code:
aptitude search 'libstdc++2.10-glibc2.2'
or
Code:
aptitude search "libstdc++2.10-glibc2.2"
does not return me any result.

However, if I use
Code:
aptitude search libstdc.*2.10-glibc2.2
the package is found.

Any reason why the first three commands do not return the expected package?

Thanks !

Last edited by Akhran; 02-09-2006 at 10:57 AM.
 
Old 02-09-2006, 11:03 AM   #2
barrulus
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Registered: Feb 2006
Location: Wales
Distribution: Fedora, SuSE, CentOS, Ubuntu
Posts: 13

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stnadard file globbing rules apply.

the + is a charachter that bash/csh/zsh etc see as a potential argument so it needs to be commented or excluded form the string.

a typical way to do this is using \ so libstdc\+\+etc...

remember, the exact way you would handle searching for strings using grep is how you can use aptitude/apt (in fact I think grep is what is used in the bg
 
Old 02-10-2006, 06:52 AM   #3
Akhran
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Registered: Aug 2005
Distribution: Debian 'lenny'
Posts: 208

Original Poster
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I've the impression that the quotas (and double quotes) will prevent any characters in the enclosed string from being interpreted as a potential arguement.

Guess I'm wrong.

Thanks for the pointer

Quote:
Originally Posted by barrulus
stnadard file globbing rules apply.

the + is a charachter that bash/csh/zsh etc see as a potential argument so it needs to be commented or excluded form the string.

a typical way to do this is using \ so libstdc\+\+etc...

remember, the exact way you would handle searching for strings using grep is how you can use aptitude/apt (in fact I think grep is what is used in the bg
 
Old 02-10-2006, 08:11 AM   #4
barrulus
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Registered: Feb 2006
Location: Wales
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Quote:
Originally Posted by Akhran
I've the impression that the quotas (and double quotes) will prevent any characters in the enclosed string from being interpreted as a potential arguement.
hehe, don't quote me, I just know that when using grep through my logs I have to do the whole...

cat /var/log/messages |grep -i "running\ out\ of"

otherwise even with the quotes grep sees multiple arguments.

if what I told you doesn't work properly, try as my grep string with the double quotes AND the backslash....
 
Old 02-10-2006, 12:39 PM   #5
saman007uk
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Registered: Dec 2003
Location: ~root
Distribution: Debian
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Quote:
Originally Posted by barrulus
hehe, don't quote me, I just know that when using grep through my logs I have to do the whole...

cat /var/log/messages |grep -i "running\ out\ of"

otherwise even with the quotes grep sees multiple arguments.

if what I told you doesn't work properly, try as my grep string with the double quotes AND the backslash....
Thats how its supposed to work. You should use something like:
Code:
cat /var/log/messages |grep -i running[[:space:]]out[[:space:]]of
 
  


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