I have done a search for this but couldn't find much on it.
I am creating a tar file with the command below
Will this is being created I have a job spooling to 5 texts files in the following directory /export/home/user/backup/STATS/
The tar files creates (seems to be complete) but does not return an exit code of 0. Therefore my calling script fails.
My question is does the tar command care if something is spooling to the directory it is backing up. My understanding was that it takes a snapshot of the files at a point in time.
Hi,
I am getting following error while running script:
tar: can't change directories to /home/xyz/script: No such file or directory
tar: compress: No such file or directory
tar: getts.tar same as archive file
Following is my script:
#!/bin/bash
echo "You want:"
echo "1. zip... (1 Reply)
I received a tar file of a directory with 50,000 files in it. Is it possible to extract the files in the tar file without first creating the directory?
ie. Doing tar -xvf filename.tar extracts as follows:
x directory/file1.txt
x directory/file2.txt
.
.
.
I would like to avoid... (4 Replies)
Hi All,
I am not one of the super users / root for AIX 5.3 system.
There is a filesystem
Say
/DIR1 and its has several subdirs in it say SUBDIR1, SUBDIR2, SUBDIR3.
Can I create a tar file for all files under DIR1 and SUBDIR1, SUBDIR3. Excluding SIBDIR2?
Also how can I preserve... (2 Replies)
Hi ,
Im spooling file from oracle to csv using shell script. Below is the code im using.. The o/p is not coming in right format.. Please help me out in this..
O/p is coming as header till batch id ,im not able to see date_stored,type,type1..
Please any one can give me some suggestion
... (1 Reply)
Hello all.
I have a tar file that contains a number of files that are stored in different directories.
If I extract this tar file with -xvf , the directories get created.
Is there a way to extract all of the files into one directory without creating the directories stored in the tar file. (9 Replies)
Hi all,
I have a tar file and inside that tar file is a folder with additional tar.gz files. What I want to do is look inside the first tar file and then find the second tar file I'm looking for, look inside that tar.gz file to find a certain directory. I'm encountering issues by trying to... (1 Reply)
Hi,
How to create a .tar file in windows OS..
I need to ftp tat <filename>.tar file into AIX and untar it there and will use for futher actions..
Please help.. Thanks in advance.. (2 Replies)
I am trying to archive directories based on their last modified date. When I tar and compress the directory it makes copies of whats inside, I don't know how to fix this.
Here is my code.
#!/bin/bash
#AUTODRUNDISABLE
VERSION="0.2"
cd /desired/directory/to/archive
find . -type d -newermt... (3 Replies)
Hi,
Could anyone help me in providing command to generate .tgz file without creating .tar file?
currently i am using below command for doing the same but if tar file has big size and there is no space in drive then tgz file will not be generated. I want to generate tgz file directly without... (4 Replies)
Hi everyone and nice to meet you :)
I'm having some issues with a script I'm writing.
It's probably most chaotic, I'm no ksh guru, but the idea is to extract an ID with that query, spool it into a file, and read that file making the ID a variable. This has to be done for every row extracted by... (10 Replies)
Discussion started by: Arkadia
10 Replies
LEARN ABOUT DEBIAN
bup-margin
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)