Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Pattern matching in file and then display 10 lines above every time
Top Forums Shell Programming and Scripting Pattern matching in file and then display 10 lines above every time Post 302305252 by sethcoop on Wednesday 8th of April 2009 10:56:56 AM
Old 04-08-2009
Quote:
Originally Posted by digitalrg
Thank you sethcoop.. but can you please tell me how to print 10 lines below the occurance of word "total" please help.....
Thanks
Here is the code to print the number of lines below your search... you can change the variable $lines to be how many lines you want to print after the word total.

Hope this helps!

Code:
#!/usr/bin/perl
$lines = 10;
$x = $lines;
open(F, "file.txt") or die "cannot read file";
while(<F>) {
  chomp;
  $my_line = "$_";
  if ("$x" < "$lines") {
    print "$my_line\n";
    $x++;
  }
  if ("$my_line" =~ "total") {
    $x = 0;
  }
};

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Reading lines in a file matching a pattern

Hi, I need to redirect the lines in a file to a different file if the character starting from 2 to 6 in the line are numerical . Please let me know if anyone have any script to do this. Thanks, Ranjit (4 Replies)
Discussion started by: torenji
4 Replies

2. Shell Programming and Scripting

counting the lines matching a pattern, in between two pattern, and generate a tab

Hi all, I'm looking for some help. I have a file (very long) that is organized like below: >Cluster 0 0 283nt, >01_FRYJ6ZM12HMXZS... at +/99% 1 279nt, >01_FRYJ6ZM12HN12A... at +/99% 2 281nt, >01_FRYJ6ZM12HM4TS... at +/99% 3 283nt, >01_FRYJ6ZM12HM946... at +/99% 4 279nt,... (4 Replies)
Discussion started by: d.chauliac
4 Replies

3. Shell Programming and Scripting

delete lines in file matching a pattern

I have a text file, a sample of which is as follows: r/- * 0: WINDOWS/Microsoft.NET/Framework/v2.0.50727/ASP.NETWebAdminFiles/Images/headerGRADIENT_Tall.gif r/- * 0: WINDOWS/SoftwareDistribution/Download/cf8ec753e88561d2ddb53e183dc05c3e/backoff.jpg r/- * 0: ... (2 Replies)
Discussion started by: stumpyuk
2 Replies

4. Shell Programming and Scripting

pattern matching lines using the date, and then joining the lines

Hi Guys, Was trying to attempt the below using awk and sed, have no luck so far, so any help would be appreciated. Current Text File: The first line has got an "\n", and the second line has got spaces/tabs then the word and "\n" TIME SERVER/CLIENT TEXT... (6 Replies)
Discussion started by: eo29
6 Replies

5. Shell Programming and Scripting

Finding lines matching the Pattern and their previous lines in a file

Hi, I am trying to locate the occurences of certain pattern like 'Possible network disconnect' in a text file. I can get the actual lines matching the pttern using: grep -w 'Possible network disconnect' file_name. But I am more interested in getting the timing of these events which are... (7 Replies)
Discussion started by: sagarparadkar
7 Replies

6. UNIX for Dummies Questions & Answers

FIND matching pattern of lines in a file

I need to search for two patterns in a file and find number of matching lines. find . -type f | xargs grep "DROP TABLE" | wc -l find . -type f | xargs grep "DROP SYNONYM" | wc -l The above code works. However I am looking at finding a commnd that will simplify as on a singe command... (2 Replies)
Discussion started by: Siva SQL
2 Replies

7. Shell Programming and Scripting

Want to print out lines with a matching pattern from file

Hi all, I want to search for strings in file1 that can be found in file2 and print out the whole line when matching pattern is found. I have used the below command, but this is not working for me, because it is writing out only the matching patterns from file2, not the whole line. fgrep -o... (2 Replies)
Discussion started by: MonikaB
2 Replies

8. Shell Programming and Scripting

Sed: printing lines AFTER pattern matching EXCLUDING the line containing the pattern

'Hi I'm using the following code to extract the lines(and redirect them to a txt file) after the pattern match. But the output is inclusive of the line with pattern match. Which option is to be used to exclude the line containing the pattern? sed -n '/Conn.*User/,$p' > consumers.txt (11 Replies)
Discussion started by: essem
11 Replies

9. UNIX for Dummies Questions & Answers

Grep -v lines starting with pattern 1 and not matching pattern 2

Hi all! Thanks for taking the time to view this! I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern. Example: Drink a soda Eat a banana Eat multiple bananas Drink an apple juice Eat an apple Eat multiple apples I... (8 Replies)
Discussion started by: demmel
8 Replies

10. Shell Programming and Scripting

Display all lines after a matching variable

Hi, I have a file called abc.txt with the following dates 2016-01-27 2016-01-28 2016-01-29 2016-01-30 2016-01-31 2016-02-01 2016-02-02 2016-02-03 I would like to print all lines below if 2016-01-31 is found, excluding that date. I use this command --> sed '1,/2016-01-31/d' abc.txt If... (4 Replies)
Discussion started by: Nagesh_1985
4 Replies

LEARN ABOUT HPUX

fmt

fmt(1)							      General Commands Manual							    fmt(1)

NAME

       fmt - format text

SYNOPSIS

       width] [file...]

DESCRIPTION

       The  command is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in
       the width option.  The default width is 72.  concatenates the arguments.  If none are given, formats text from the standard input.

       Blank lines are preserved in the output, as is the spacing between words.  does not fill lines beginning with a	period	for  compatibility
       with Nor does it fill lines starting with

       Indentation is preserved in the output and input lines with differing indentation are not joined (unless is used).

       can also be used as an in-line text filter for the command:

       reformats the text between the cursor location and the end of the paragraph.

   Options
       recognizes the following options:

	      Crown margin mode.
		    Preserve the indentation of the first two lines within a paragraph and align the left margin of each subsequent line with that
		    of the second line.  This is useful for tagged paragraphs.

	      Split lines only.
		    Do not join short lines to form longer ones.  This prevents sample lines of code, and other such "formatted" text, from  being
		    unduly combined.

	      Fill output lines to up to
		    width columns.

WARNINGS

       The width option is acceptable for BSD compatibility, but it may go away in future releases.

SEE ALSO

       nroff(1), vi(1).

																	    fmt(1)
All times are GMT -4. The time now is 10:50 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy