Help Needed with 1 liner AWK statement Post: 302338966

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1. Shell Programming and Scripting

awk one liner

input a 100 200 300 b 400 10 output a 100 a 200 a 300 b 400 b 10 Thanx

2. UNIX for Advanced & Expert Users

one liner needed

Hi I have a file say (a.txt) which has following a.txt ---- $$var1=Tom $$var2=Kim I need a one liner which searches the file(a.txt) for $$var1 and returns the value in it(Tom). Thanks in advance Ammu

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awk one liner

I need a one liner to" find /pattern/ print from x lines before "pattern" to y lines after "pattern"

4. Shell Programming and Scripting

combine 2 awks statement into 1 liner

Using these 2 comands to concatenate both outputs into single file: cat testdata | awk 'BEGIN { FS="\n"; RS=""; } /<pattern1>/ {print}' > testdata1 cat testdata| awk '/<pattern2>/,EOF' >> testdata1 is it possible to combine both "awk" into 1-liner? pls advise and thanks in advance.

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Clarification needed for a SED one liner

I want to use SED to replace all new line characters of a file, I googled and found this one liner sed '{:q;N;s/\n//g;t q}' infile what do :q;N; and t q mean in this script?

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need an awk one liner

example input file: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

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Search & Replace regex Perl one liner to AWK one liner

Thanks for giving your time and effort to answer questions and helping newbies like me understand awk. I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk. Basically I'd like all lines with ISA sandwiched between...

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HELP with AWK one-liner. Need to employ an If condition inside AWK to check for array variable ?

Hello experts, I'm stuck with this script for three days now. Here's what i need. I need to split a large delimited (,) file into 2 files based on the value present in the last field. Samp: Something.csv bca,adc,asdf,123,12C bca,adc,asdf,123,13C def,adc,asdf,123,12A I need this split...

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awk one liner

The below code is a simple modified sample from a file with millions of lines containing hundreds of extra columns xxx="yyy" ... <app addr="1.2.3.4" rem="1000" type="aaa" srv="server1" usr="user1"/> <app usr="user2" srv="server2" rem="1001" type="aab" addr="1.2.3.5"/>What's the most efficient awk...

10. Shell Programming and Scripting

Convert Update statement into Insert statement in UNIX using awk, sed....

Hi folks, I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex. I have a bunch of update statements with all columns in a file which I need to convert into insert statements. UPDATE TABLE_A SET COL1=1 WHERE...

LEARN ABOUT CENTOS

truncate

TRUNCATE(1)							   User Commands						       TRUNCATE(1)

NAME

       truncate - shrink or extend the size of a file to the specified size

SYNOPSIS

       truncate OPTION... FILE...

DESCRIPTION

       Shrink or extend the size of each FILE to the specified size

       A FILE argument that does not exist is created.

       If  a  FILE  is	larger than the specified size, the extra data is lost.  If a FILE is shorter, it is extended and the extended part (hole)
       reads as zero bytes.

       Mandatory arguments to long options are mandatory for short options too.

       -c, --no-create
	      do not create any files

       -o, --io-blocks
	      treat SIZE as number of IO blocks instead of bytes

       -r, --reference=RFILE
	      base size on RFILE

       -s, --size=SIZE
	      set or adjust the file size by SIZE bytes

       --help display this help and exit

       --version
	      output version information and exit

       SIZE is an integer and optional unit (example: 10M is 10*1024*1024).  Units are K, M, G, T, P, E, Z, Y (powers of  1024)  or  KB,  MB,  ...
       (powers of 1000).

       SIZE  may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
       down to multiple of, '%' round up to multiple of.

       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>	Report	truncate  translation  bugs   to   <http://translationpro-
       ject.org/team/>

AUTHOR

       Written by Padraig Brady.

COPYRIGHT

       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       dd(1), truncate(2), ftruncate(2)

       The  full  documentation  for truncate is maintained as a Texinfo manual.  If the info and truncate programs are properly installed at your
       site, the command

	      info coreutils 'truncate invocation'

       should give you access to the complete manual.

GNU coreutils 8.22						     June 2014							       TRUNCATE(1)

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awk one liner

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one liner needed

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Convert Update statement into Insert statement in UNIX using awk, sed....

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LEARN ABOUT CENTOS

truncate