Help in UNIX


 
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# 1  
Old 02-07-2013
Help in UNIX

Hi friends,
I am new to UNIX. My issue is..... We are having a path like a/b/c/d/outfiles. The output files generated during execution of program are saved in this path(all output files will be with extension '.out' like output1.out). Is there any UNIX command to jump directly to the path *outfiles*? And is there any command to find the path of the file output1.out directly without searching for that path and downloading the file?
I am trying to use the command find . -name output1.out. ( It will search all the files in current directory and the sub directory). But if I am in a/b directory and searching for that file with that command and if any sub folders of b,c or d doesn't have read permissions, its stopped searching there.
Please help me.
Srivathsava
# 2  
Old 02-07-2013
Usually the output goes wherever the developper has decided or where specified by a configuration file etc... So no there is no unix command to jump there if it were not an alias.
About find, I am not sure it stops when it cant read ( should continue...), but sure it will insult you...
What OS are you using?
# 3  
Old 02-07-2013
Quote:
Originally Posted by Srivathsava
But if I am in a/b directory and searching for that file with that command and if any sub folders of b,c or d doesn't have read permissions, its stopped searching there.
That's the entire point of the security model. If you do not have read permission you are not allowed to read. You either need to run find as a different user, one that has read permission, or the file hierarchy's ownership and/or permissions need to be modified.

If I recall correctly, for a find traversal you'll need read permissions for every directory that is visited, and execute (search) permissions for every path component, even if it's upstream and not visited. So if you start your search at directory "d" with hopes of reaching "f", whose path is /a/b/c/d/e/f/, you will need execute permission on every directory from the root to "f", but you'll only need read permissions for "d", "e", and "f".

With cd, you can "jump" to a directory, but only if you know its location and have execute permission on every directory above it. If you lack that permission on even just one of its ancestors, you won't be able to make it the current working directory. Once in that directory, you'll still need read permission to list its contents and write permission to create/delete files.

Regards,
Alister

Last edited by alister; 02-07-2013 at 12:41 PM..
# 4  
Old 02-07-2013
If
Code:
cd a/b/c/d/outfiles

is allowed, and only read=browse is denied for one of the above directories,
you can make a symlink
Code:
ln -s a/b/c/d/outfiles outfiles
ls -l outfiles
cd outfiles
/bin/pwd

# 5  
Old 02-08-2013
Whats about the delimiter commands? Can we use them to find the directory. IF so, how we can use it?
Srivathsava
# 6  
Old 02-08-2013
RedHat

Hi,

So far the situation is concerned without permission it is not possible either to jump
directly or to have a softlink. Since without permission the same will not be executed.
Moreover it will not let the other users to get in the sub-directories.

To over look the permission error message you can opt for the below
command.

find . -name output1.out 2>/dev/null
# 7  
Old 02-08-2013
Is there any other way to locate the outfile1.out file directly from any of the parent directories? (Without saying any permission denied messages Smilie )
Srivathsava
 
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