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11 results tagged awk x

shell - How to select lines between two marker patterns which may occur multiple times with awk/sed - Stack Overflow
Use awk with a flag to trigger the print when necessary:

$ awk '/abc/{flag=1;next}/mno/{flag=0}flag' file
def1
ghi1
jkl1
def2
ghi2
jkl2

How does this work?
```
/abc/ matches lines having this text, as well as /mno/ does.
/abc/{flag=1;next} sets the flag when the text abc is found. Then, it skips the line.
/mno/{flag=0} unsets the flag when the text mno is found.
The final flag is a pattern with the default action, which is to print $0: if flag is equal 1 the line is printed.
```
For a more detailed description and examples, together with cases when the patterns are either shown or not, see How to select lines between two patterns?.
November 5, 2018 at 4:42:37 PM GMT+1 - permalink - - https://stackoverflow.com/questions/17988756/how-to-select-lines-between-two-marker-patterns-which-may-occur-multiple-times-w

awk
shell - bash / sh script to replace text between some tags/strings in a text file - Unix & Linux Stack Exchange

Use

sed '/#start/,/#end/replace_command'

For example, if the file is called myconfig, and you want to replace "allow" with "deny" in that section, you could say

sed '/#start/,/#end/s/allow/deny/' myconfig

example

sed -i -r "/<elasticConfig>/,/<\/elasticConfig>/s,<enabled>.+</enabled>,<enabled>false</enabled>," file.xml
October 12, 2017 at 11:03:01 AM GMT+2 * - permalink - - https://unix.stackexchange.com/questions/272061/bash-sh-script-to-replace-text-between-some-tags-strings-in-a-text-file

awk replace sed
bash - median of column with awk - Stack Overflow

This awk program assumes one column of numerically sorted data:

#/usr/bin/env awk
{
count[NR] = $1;
}
END {
if (NR % 2) {
print count[(NR + 1) / 2];
} else {
print (count[(NR / 2)] + count[(NR / 2) + 1]) / 2.0;
}
}

Sample usage:

sort -n data_file | awk -f median.awk
August 2, 2016 at 5:33:42 PM GMT+2 * - permalink - - http://stackoverflow.com/questions/6166375/median-of-column-with-awk

awk median
micha/jsawk
September 18, 2015 at 12:30:06 PM GMT+2 - permalink - - https://github.com/micha/jsawk

awk grep json
ferd.ca -> Awk in 20 Minutes

Ce tuto est bien fait
Mais j'ai un peu de mal avec awk : pour des tâches simple je m'en sors avec cut, et pour des tâches plus complexes je passe à un vrai langage de scripting comme python
January 18, 2015 at 2:45:25 PM GMT+1 - permalink - - http://ferd.ca/awk-in-20-minutes.html

awk
GNU Awk 4.1: Teaching an Old Bird Some New Tricks, Part II | Linux Journal
January 1, 2015 at 2:40:56 PM GMT+1 - permalink - - http://www.linuxjournal.com/content/gnu-awk-41-teaching-old-bird-some-new-tricks-part-ii

awk
linux - Add up a column of numbers at the Unix shell - Stack Overflow

| awk '{total = total + $1}END{print total}'

find . ! -newer /tmp/file2015 -exec ls -l --block-size=M {} \; |cut -d' ' -f5|sed 's/M//'| awk '{total = total + $1}END{print total}'
November 19, 2014 at 2:54:22 PM GMT+1 * - permalink - - http://stackoverflow.com/questions/926069/add-up-a-column-of-numbers-at-the-unix-shell

add awk count sum total
Awk - A Tutorial and Introduction - by Bruce Barnett
April 8, 2014 at 1:37:34 PM GMT+2 - permalink - - http://www.grymoire.com/Unix/Awk.html#uh-0

awk
The UNIX School: awk - 10 examples to split a file into multiple files

exemple de split file avec awk
December 16, 2013 at 4:11:53 PM GMT+1 - permalink - - http://www.theunixschool.com/2012/06/awk-10-examples-to-split-file-into.html

awk split
Awk

Relink, je les avais perdu :
Part 1 : http://www.linuxjournaldigital.com/linuxjournal/201109#pg94
Part 2 : http://www.linuxjournal.com/content/gnu-awk-41-teaching-old-bird-some-new-tricks-part-ii
December 7, 2013 at 4:34:06 PM GMT+1 - permalink - - http://

awk
http://www.pement.org/awk/awk1line.txt
November 2, 2013 at 9:14:12 AM GMT+1 - permalink - - http://www.pement.org/awk/awk1line.txt

awk memo

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