I have a file with more than 1 layers of soft links for it. For ex.
I want to get the name of the last file (i.e. .profile_final) when I refer to .profile using shell script. I could not find any option available to get this.
Any help would be appreciated.
Last edited by vbe; 10-06-2010 at 04:50 AM..
Reason: code tags
Hi,
Is there a limit to the number of symbolic links you can have?
I tried to vi the symbolic link relating to a file and got the following error:
"filename" Too many levels of symbolic links
There is only one symbolic link to one file in this case, but there are >2000 other links to... (2 Replies)
Hi,
- we have copy (cp command) to do to save all the contents of a dty BUT we dont want to copy the files corresponding to symbolic links contained whithin this dty
- the box is a sun solaris one - and the cp commande do not say avything about that?
thanks for help
Jakez (7 Replies)
I am linking a directory as follows:
ln -sf /home/xxx/userid/real_files/* /home/xxx/userid/linked_files
This gives me symbolic links for all the files in the real_files directory in the linked_files directory. My question is, if I go and remove a file in the real_files directory and then go... (1 Reply)
Hi Guys...
I want to create a link using ln -s for a directory that does not exist on the box.
How do I do that?
I had some files from Box A directory /d1/u01 and I copied the files across to another Box lets say Box B on directory /d2/u02.
Now I want a link so that this path /d1/u01... (2 Replies)
Hi all,
I have scoured the entire forum for this but to no avail unfortunately. Basically, I would like to remove my symbolic link from my folder name i.e.
foldername -> /a/b/c/d/f
where f is indeed a folder. I have tried rmdir but this does not work and in actual fact deletes the... (4 Replies)
I've just started using UNIX in a Linux vmplayer. I'm trying to run the command:
ln -s `pwd`/$1 `python -c "from distutils.sysconfig import get_python_lib; print get_python_lib()"`/$1
in a script from an online tutorial, but I keep getting an error message:
ln: creating symbolic link... (1 Reply)
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)