04-13-2012
Thanks for the reply.
Here in the file i put 2 lines above only.
Actually my requirement is to print the string which is 26 lines above every occurence of "comp" string only.
Sorry if i have misguided you.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi
Im running a backup scriptwhich creates a log file
how do grep for the string in the logfile so the backup script can continue to next stage otherwise it will exit
i.e
12:32:53 INF - Client completed sending data for backup
12:33:02 INF - Backup by root on client lonbob04bak using... (4 Replies)
Discussion started by: eb222
4 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I have to grep a word 'XYZ' from 900 files ( from 2007 till date), take its count month wise. The output should display month, count , word 'XYZ' .
I tried searching the forum for solution but could find any.
I would apprieciate if any one can help me asap ....
Many Thanks:) (12 Replies)
Discussion started by: vikram2008
12 Replies
3. Shell Programming and Scripting
Hello guys - I am new to Unix.
I am trying to understand how to grep a perticular string in todays file?
I am trying this syntax but not getting what I am looking for:
% grep `date '+%d/%b/%Y'`
For instance there are 2 files generated today with same data. I am trying to find them and... (21 Replies)
Discussion started by: DallasT
21 Replies
4. Shell Programming and Scripting
Hi all,
I would want to recieve notification only if there are sessions block in our databases.
This is my script, but it's not working. No matter what is the contents in the $OUTFILE, I get emails.
/usr/bin/cat $OUTFILE | read selected
if
then
echo "No session is blocked"
else
... (7 Replies)
Discussion started by: *Jess*
7 Replies
5. Shell Programming and Scripting
hi everyone,
1.txt
12
34
56
2.txt
456----aa
abc;b;b;b
34;a;a;a;a
output is
456----aa
34;a;a;a;a (11 Replies)
Discussion started by: jimmy_y
11 Replies
6. UNIX for Dummies Questions & Answers
Hi,
I have one shell script, which run another one script inside in nohup mode. I want to search one string from the nohyup.out file in the same mail shell script itself .Can anyone help me??
Please find the code below:
total_ear=`cd ear ; ls *.ear | wc -l | tr -d ' '`
for ear in `cd ear ; ls... (0 Replies)
Discussion started by: ckchelladurai
0 Replies
7. Shell Programming and Scripting
Hi,
1_strings file contains
$ cat 1_strings
/home/$USER/Src
/home/Valid
/home/Review$ cat myxml
<projected value="some string" path="/home/$USER/Src">
<input 1/>
<estimate value/>
<somestring/>
</projected>
<few more lines >
<projected value="some string" path="/home/$USER/check">... (4 Replies)
Discussion started by: greet_sed
4 Replies
8. Shell Programming and Scripting
I am attempting to grep an exact string from a series of files within a directory and append that output to the filename when it is present in the file. I've been after this all day with no luck. Thanks for your help in advance :wall:. (4 Replies)
Discussion started by: JC_1
4 Replies
9. Shell Programming and Scripting
Hi,
I have a list of zipped files. I want to grep for a string in all files and get a list of file names that contain the string. But without unzipping them before that, more like using something like gzcat.
My OS is:
SunOS test 5.10 Generic_142900-13 sun4u sparc SUNW,SPARC-Enterprise (8 Replies)
Discussion started by: apenkov
8 Replies
10. Shell Programming and Scripting
I have a file comp.pkglist which mention package version and release . In 'version change' and 'release change' line there are two versions 'old' and 'new' Version Change: --> Release Change: -->
cat comp.pkglist
Package list: nss-util-devel-3.28.4-1.el6_9.x86_64
Version Change: 3.28.4 -->... (1 Reply)
Discussion started by: Paras Pandey
1 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)