09-12-2014
This thread duplicates the discussion going on in the thread:
Gawk Question
This thread is closed.
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1. Shell Programming and Scripting
I have to compare records in two files. It can be done using gawk/awk but i am unable to do it. Please help me
File1
ABAAAAAB BC asa sa
ABAAABAA BC bsa sm
ABBBBAAA BC bxz sa
ABAAABAB BC csa sa
ABAAAAAA BC dsa sm
ABBBBAAB BC dxz sa
File 2
ABAAAAAB BC aas ba
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The following message is being prompted while using gawk in my ksh :
gawk: not found
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3. Shell Programming and Scripting
Hi.
I'm having trouble using gawk within a bash script and I can't figure out why.
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4. Shell Programming and Scripting
Hi all
I’m looking for a perl equivalent to this command string
I need to imbed this in a existing perl script
cat file1 | gawk -F"|" '{print $1","$2,",",$3,",",$11 >> "new-file"}'
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5. Shell Programming and Scripting
Hi,
I am using the script to print the portion of the file containing a particular string. But it is giving error "For Reading (No such file or directory). I am using cygwin as unix simulator.
cat TT35*.log | gawk -v search="12345678" '
/mSOriginating /,/disconnectingParty/ {
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6. Shell Programming and Scripting
Hi,
I have a situation. in a particular file , from the 9th column i have to match a particular pattern . i want a second file which is made by excluding them.
I wrote a code like this.
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7. Shell Programming and Scripting
Someone help please. I tried to do it with findstr but I couldn't, so now I'm trying to output the following numbers from this text file with gawk (what I need is in bold down below):
Analyzing pool.ntp.org (1 of 1)...
delayoffset from local clock
Stratum: 2
Warning:
Reverse name... (18 Replies)
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Hi All,
I have a doubt with gawk. I have a shell script "cleanup" which calls a gawk script "cleanawk" in it.
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9. SCO
I am trying to use gawk to search a file and put the second value of the string into a string.
gawk -F: '$1~/CXFR/ {print $2}' go.dat
go.dat
====================
HOME :/
CTMP :/tmp
CUTL :/u/rdiiulio/bin
CWRK :/u/work
CXFR :/u/xfer
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10. Shell Programming and Scripting
Hello,
This is a problem I've worked on a while and can't figure out.
There is a file.txt
..some stuff..
]
]
..some stuff..
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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)