Hi!
How can I print out a specific range of rows, like "cat file | awk NR==5,NR==9", but in the END-statement?
I have a small awk-script that finds specific rows in a file and saves the line number in an array, like this:
awk '
BEGIN { count=0}
/ZZZZ/ {
list=NR
... (10 Replies)
Hi folks
I am not allowed to install GNU grep on AIX.
Here my code excerpt:
grep_fatal () {
/usr/sfw/bin/gegrep -B4 -A2 "FATAL|QUEUE|SIGHUP"
}
Howto the same on AIX based machine?
from manual GNU grep
‘--after-context=num’
Print num lines of trailing context after... (4 Replies)
Could someone please point me in the right direction with the following?
I have a program that generates logs that contains sections like this:
IMAGE INPUT
81 0 0.995 2449470 0 1726 368 1 0.0635 0.3291
82 0 1.001 2448013 0 1666 365 1 0.0649 ... (4 Replies)
Hey,
Need some help for command to print only lines with two columns in a file
abc 111
cde 222
fgh
ijk 2
klm 12 23
nop
want the ouput to be
abc 111
cde 222
ijk 2
Thanks a lot in advance!!! (3 Replies)
Hi,
I need a help to search a pattern and print the multiple lines between them.
Input file:
Tue May 29 12:30:33 EDT 2012:threadWebContainer : 357:com.travimp.hotelierlinks.abba.service.RequestHandler.requestService(String, ITICSDataSet): hotelCancelReservation request: ... (4 Replies)
Hello,
I can extract lines in a file, between two strings but only one time.
If there are multiple occurencies, my command show only one block.
Example, monfichier.txt contains :
debut_sect
texte L1
texte L2
texte L3
texte L4
fin_sect
donnees inutiles 1
donnees inutiles 2
... (8 Replies)
Hello,
i need help with awk.
I have this file:
cat number
DirB port 67 er_enc_out 0 er_bad_os 0
DirB port 71 er_enc_out 56 er_bad_os 0
DirB port 74 er_enc_out 0 er_bad_os 0
DirB port 75 ... (4 Replies)
Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" .
I have attached sample input file and the desired input should be as:
INPUT FORMAT:
SELECT
ABCD,
DEFGH,
DFGHJ,
JKLMN,
AXCVB,... (5 Replies)
Discussion started by: nani2019
5 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)