you know like if you want to work on a specified field in the password file. you would specify the field your interested in my telling the script that the fields are separated by a colon. now, my problem is that I want to specify a field that is not separated by a colon but by a space or tab... (1 Reply)
i have a file which contains text as shown below....
aaa|bbb|ccc|ddd|
cccc|ddddd|eeeee|ffffff
want to convert pipe symbol to tab like
aaaa bbbb cccc ddddd
ccccc ddddd eeeee ffffffffff
i tried with sed
sed 's/|/\t/g' file_name ...but i could not... (1 Reply)
Hi
I need to write a small script to kill the process id of particular job in one shot ,
Example
> ps
PID TTY TIME COMMAND
16280 pts/70 0:00 sh
16278 pts/70 0:00 rlogind
16197 pts/70 0:00 ps
1234 pts/70 0:00 runflow
2341 pts/70 0:00 runflow
12673 pts/70 ... (6 Replies)
Hi,
I have a space delimited text file but I only want to change the first space to a tab and keep the rest of the spaces intact. How do I go about doing that? Thanks! (3 Replies)
My data is jumbled up in the following way. I want to replace only the first two occurrences of space sets (may be a single space also) in every line with a single tab, please help. I want to be able to import the tab delimited columns into excel.
Input
a b c d e f g h i line1
j k ... (1 Reply)
Hi,
Need help on replacing every second instance of delimeter.
Scenario:
var="Name1,Value1,Name2,Value2,Name3,Value3,Name4,Value"
I want every second "," to replace with "|"
I tried like below
echo $var| sed 's/,/|/2'
But, it's not working.
Expected output:
... (4 Replies)
My file looks like
3 33 210.01.10.0 2.1 1211 560 26 45 1298 98763451112 15412323499 INPUT OK
3 233 40.01.10.0 2.1 1451 780 54 99 1876 78787878784 15423210199 CANCEL OK
Aim is to replace the spaces in each line by tab
Used: sed -e 's/ */\t/g'
But I get output like this... (3 Replies)
Hi Team
below test file contains tab delimeter file and i am excepting the number of files 3.
File : test.txt
a b c
awk -vFPAT='\t' -vOFS="\t" -v a="0" -v b="10" ' NR>a {if (NF != b ) print NR"@"NF }' test.txt
current output is
1@2
required output is
1@3
Cloud you please help... (7 Replies)
Discussion started by: bmk123
7 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)