10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
Right now there is a file called 'qm.ini' which is owned by mqm:mqm and I am trying to replace a line from this file with something else and save.
I am using the below perl command to replace and save within a shell script with a different user called 'mqadm' which is also part of mqm... (1 Reply)
Discussion started by: bdpl
1 Replies
2. Shell Programming and Scripting
Hi,
I am having a files in my directory like this:
2014 1049_file1.txt
2014 1050_file2.txt
2014 1110_file3.txt
2014 1145_file4.txt
2014 2049_file5.txt
I need to replace the above file names like this without changing the content of filename:
file1.txt
file2.txt
file3.txt... (10 Replies)
Discussion started by: rohit_shinez
10 Replies
3. Shell Programming and Scripting
Hi,
I am having trouble while using 'sed' with reading files. Please help. I have 3 files. File A, file B and file C. I want to find content of file B in file A and replace it by content in file C.
Thanks a lot!!
Here is a sample of my question.
e.g. (file A: a.txt; file B: b.txt; file... (3 Replies)
Discussion started by: dirkaulo
3 Replies
4. Shell Programming and Scripting
I have a file myfile with only one value 1000.I am using it in a shell script.Each time i run the script,the file shud get incremented by 1. I have used the below code for incrementing the value-
curr=`cat myfile`
echo $curr
curr=`expr $curr + 1`
But i am not sure how to save this replaced... (2 Replies)
Discussion started by: saga20
2 Replies
5. Shell Programming and Scripting
Hi,
My requirement is to find a text and replace it with another in a XML file.
I am new to Unix,Please provide some suggestion to achieve.
Find:
<Style ss:ID="ColumnHeader1">
Replace with:
<Style ss:ID="ColumnHeader1">
<Borders>
<Border ss:Position="Bottom"... (4 Replies)
Discussion started by: cnraja
4 Replies
6. Shell Programming and Scripting
hi
I have template file my.tpl:
bla-bla-bla
<link href="style.css" type="text/css">
bla-bla-bla
and style.css :
body{margin: 0px;}
I want to get in result one file:
bla-bla-bla
<script>body{margin: 0px;}</script>
bla-bla-bla
I tryed to used SED:
sed '/<link .*href=\"(*)*\"... (6 Replies)
Discussion started by: dim_nsk
6 Replies
7. Shell Programming and Scripting
Our system is receiving one feed from the third party.
One of the field in the flat file is ID which id from position 19 to 27. In some cases this ID is coming as 9 zeros (000000000) or 1 right padded zero. ( 0)
For these specific records I want to replace fthis field with blank... (3 Replies)
Discussion started by: varunrbs
3 Replies
8. Shell Programming and Scripting
Hi
I have a control file which looks like this
LOAD DATA
INFILE '/home/scott/XXX.dat'
PRESERVE BLANKS
.............
.............
how can i change the content of this file and replace the file in the second line with anothe file name and write it back with another name to the disk?
... (5 Replies)
Discussion started by: mwrg
5 Replies
9. Shell Programming and Scripting
Hi,
I want to replace _F* by _F in a xml file. what is the sed command.
I have tried sed "s/_F$/_F/g" or sed "s/_F*/_F/g" , but it does not work. thx
file content
<TAG>KC_FOU</TAG>
<TAG>KC_FABC</TAG>
<TAG>KC_FABCDG</TAG>
desire output
<TAG>KC_F</TAG>
<TAG>KC_F</TAG>
<TAG>KC_F</TAG> (6 Replies)
Discussion started by: godfreyyip
6 Replies
10. Shell Programming and Scripting
Hi,
I'm a newbi in shell script. Here what I want to do:
FileA:
bor bor bor
xxxx
bib bib bi
FileB:
something something
something
I want to replace string "xxxx" in FileA with contents of FileB.
i tried with sed:
fileb=`cat FileB`
reg=xxxx
file=FileA (4 Replies)
Discussion started by: afatguy
4 Replies
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)