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Top Forums Shell Programming and Scripting Grep string in a file and paste next line in a specific way Post 303021927 by baris35 on Monday 20th of August 2018 04:36:34 PM
Old 08-20-2018
Grep string in a file and paste next line in a specific way

Hello,
I know there are many questions and replies regarding grep command.
What I would like to do is a bit different.

File A:
Code:
hello world welcome to my page
this is my test site
how are you
I am fine, thank you
where have you been
I was in hospital
really hope you are fine now
Thanks, all black days are away now
What about your family
Thank you so much, All good
Sounds nice
Cheers
You too
Cheers2

FileB:
Code:
hello world welcome to my page
how are you
where have you been
really hope you are fine now
What about your family
Sounds nice
You too

Code:
grep -A1 'world' FileA | grep -A1 'page'

It will grep next one of the line containing world and page words and then it will paste it to FileB after matching line.

Expected output should be:
Code:
hello world welcome to my page
this is my test site
how are you
where have you been
really hope you are fine now
What about your family
Sounds nice

Really appreciated if you could lead me how to solve this.

Thanks
Boris




Moderator's Comments:
Mod Comment Please use CODE (not QUOTE!) tags as required by forum rules!

Last edited by RudiC; 08-20-2018 at 06:55 PM.. Reason: Changed QUOTE to CODE tags.
 

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PASTE(1)						      General Commands Manual							  PASTE(1)

NAME
paste - paste multiple files together SYNOPSIS
paste [-s] [-d list] file... OPTIONS
-d Set delimiter used to separate columns to list. -s Print files sequentially, file k on line k. EXAMPLES
paste file1 file2 # Print file1 in col 1, file2 in col 2 paste -s f1 f2 # Print f1 on line 1 and f2 on line 2 paste -d : file1 file2 # Print the lines separated by a colon DESCRIPTION
Paste concatenates corresponding lines of the given input files and writes them to standard output. The lines of the different files are separated by the delimiters given with the option -s. If no list is given, a tab is substituted for every linefeed, except the last one. If end-of-file is hit on an input file, subsequent lines are empty. Suppose a set of k files each has one word per line. Then the paste output will have k columns, with the contents of file j in column j. If the -s flag is given, then the first file is on line 1, the second file on line 2, etc. In effect, -s turns the output sideways. If a list of delimiters is given, they are used in turn. The C escape sequences , , \, and are used for linefeed, tab, backslash, and the null string, respectively. PASTE(1)
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