06-23-2013
With well over a hundred posts in the UNIX & Linux Forums, you should know that to be able to help we need a lot more details:
- What are you using to create /tmp/x?
- What sed commands are you using to redirect output to other files?
- Do lines 7 and 9 in /tmp/x contain tabs or just spaces?
- How exactly do you want to refer to a field and what results do you want when you refer to that field?
- And, most importantly, what have you tried?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Let's say I write a simple script that contains the following:
date | awk '{print $1}'
date | awk '{print $2}'
Of course, when I run the script the output will look similar to:
Tue
Mar
What if I want my ouput to be on one line as follows:
Tue Mar
What changes would I need to... (2 Replies)
Discussion started by: cdunavent
2 Replies
2. Shell Programming and Scripting
I have a file that is 20 - 80+ MB in size that is a certain type of log file.
It logs one of our processes and this process is multi-threaded. Therefore the log file is kind of a mess. Here's an example:
The logfile looks like: "DATE TIME - THREAD ID - Details", and a new file is created... (4 Replies)
Discussion started by: elinenbe
4 Replies
3. Shell Programming and Scripting
This script is supposed to find out if tomcat is running or not.
#!/bin/sh
if netstat -a | grep `grep ${1}: /tomcat/bases | awk -F: '{print $3}'` > /dev/null
then
echo Tomcat for $1 running
else
echo Tomcat for $1 NOT running
fi
the /tomcat/bases is a file that... (2 Replies)
Discussion started by: ziggy25
2 Replies
4. Shell Programming and Scripting
Hi,
I need to insert a line at a particular line number. I am using the below code:
sed $REV_LINO_NO" i\\
# $CURRENT_DATE $NAME Changed pwd for cindy\'s id" file > file1
This code works, but the formatting is not as I expected. For example, I get lines as shown below... (2 Replies)
Discussion started by: sugan
2 Replies
5. Shell Programming and Scripting
Dear all
I require help with AWK regarding this situation
Input is :
fn1 12345
fn1 23456
fn3 231513
fn1 22325
fn3 123125
Desired output is
fn1 12345 23456 22325
fn3 231513 123125 (5 Replies)
Discussion started by: Peasant
5 Replies
6. Shell Programming and Scripting
when i try this awk its giving out put as below.
awk '!(/^$/||/--/||/selected/||/^ *$/){print $1}' tmp.txt
output
=====
1
2010-08-03-12.31.26.126000
how excluede the 1st line ? i mean i want output only 2nd line i.e 2010-08-03-12.31.26.126000; (5 Replies)
Discussion started by: rocking77
5 Replies
7. Shell Programming and Scripting
Our vendor produces a report that I would like to format in a particular way.
Here is the sample output from their report:
# AA.INDEX 2 11 2 239 52 (7,2) 07 MAY 11 203.1 55
# ACCOUNT 2 89561 2 ... (4 Replies)
Discussion started by: thaller
4 Replies
8. UNIX for Dummies Questions & Answers
Hi all,
I'm writing a simple awk code:
awk 'BEGIN {FS="|"};{print "Type\tNumber\ttypes\tTotal";};{print $1, "\t", $2, "\t", $3, "\t", $4, "\t";}' db_query.txt
it gives me the result:
Type Number types Total
XXX 498.0 5100.0 5274.661
Type Number types Total... (7 Replies)
Discussion started by: messi777
7 Replies
9. Shell Programming and Scripting
Hi ,
I was trying to find files of a particular date and did that but then I also wanted to format a field based on some condition so had put another if else in awk.
Now it is getting the files of particular date or also the files which are matching that if else condition.
find . -name "*"... (1 Reply)
Discussion started by: abhi1988sri
1 Replies
10. Shell Programming and Scripting
Need assistance on the data extraction using awk
Below is the format and would like to extract the data in another format
-------------------------------------------------------------------------------------------------
Minimum Temperature (deg F )
DAY 1 2 3 4 5 6 7 8 9 10 11... (4 Replies)
Discussion started by: ajayram_arya
4 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)