Sponsored Content
Top Forums Shell Programming and Scripting Search and swap multiple lines in file using Perl Post 302689537 by Corona688 on Tuesday 21st of August 2012 03:15:37 PM
Old 08-21-2012
What would that do which sort isn't doing already?

Why can you generalize with perl but not sort?

Right tool for the right job and all that. If I can do in one line what 30 can't, maybe you're using the wrong tool.
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl - How to search a text file with multiple patterns?

Good day, great gurus, I'm new to Perl, and programming in general. I'm trying to retrieve a column of data from my text file which spans a non-specific number of lines. So I did a regexp that will pick out the columns. However,my pattern would vary. I tried using a foreach loop unsuccessfully.... (2 Replies)
Discussion started by: Sp3ck
2 Replies

2. Shell Programming and Scripting

Pattern search in multiple lines

Hi, I have to search those statements from the file which starts from "shanky"(only shanky, shanky09 or 09shanky is not allowed) and ends with ");". These two string can be in a same line or different line. And also i have to negate those lines which starts with #. Can any one please give me... (2 Replies)
Discussion started by: shanky09
2 Replies

3. Shell Programming and Scripting

Search for multiple lines in large file

Hi, I have a requirement to search for a string in a large log file along with few lines before and after the the string. The following script was sufficient to search such an entry. STRING_TO_GREP="$1" FILE_TO_GREP="$2" NUMBER_OF_LINES_BEFORE=$3 NUMBER_OF_LINES_AFTER=$4 for i in `grep... (3 Replies)
Discussion started by: praveen123
3 Replies

4. Shell Programming and Scripting

Using Perl to Merge Multiple Lines in a File

I've hunted and hunted but nothing seems to apply to what I need. Any help will be much appreciated! My input file looks like (Unix): marker,allele1,allele2 RS1002244,1,1 RS1002244,1,3 RS1002244,3,3 RS1003719,2,2 RS1003719,2,4 RS1003719,4,4 Most markers are listed 3 times but a few... (2 Replies)
Discussion started by: Peggy White
2 Replies

5. Shell Programming and Scripting

Perl to Search through next lines

I have log file that I need to extract time difference occurance when two events happend, between first occurance of TV and when W_NO happend. also read the value=, below example...I can only read the next line but not able to seach all the next lines untill i see W_NO.. Thanks for your help.... (6 Replies)
Discussion started by: bataf
6 Replies

6. Shell Programming and Scripting

search and replace, when found, delete multiple lines, add new set of lines?

hey guys, I tried searching but most 'search and replace' questions are related to one liners. Say I have a file to be replaced that has the following: $ cat testing.txt TESTING AAA BBB CCC DDD EEE FFF GGG HHH ENDTESTING This is the input file: (3 Replies)
Discussion started by: DeuceLee
3 Replies

7. Shell Programming and Scripting

Combine multiple unique lines from event log text file into one line, use PERL or AWK?

I can't decide if I should use AWK or PERL after pouring over these forums for hours today I decided I'd post something and see if I couldn't get some advice. I've got a text file full of hundreds of events in this format: Record Number : 1 Records in Seq : ... (3 Replies)
Discussion started by: Mayday22
3 Replies

8. Shell Programming and Scripting

How to search multiple patterns and remove lines from a file?

Hi, I have a file content as below. Table : PAYR Displayed fields: 15 of 15 Fixed columns: 4 List width 0999... (4 Replies)
Discussion started by: shirdi
4 Replies

9. Shell Programming and Scripting

Removing multiple lines from input file, if multiple lines match a pattern.

GM, I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed. I am assuming that sed, awk or even perl could do what I need. I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
Discussion started by: jxfish2
7 Replies
fmt(1)								   User Commands							    fmt(1)

NAME
fmt - simple text formatters SYNOPSIS
fmt [-cs] [-w width | -width] [inputfile...] DESCRIPTION
fmt is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the -w width option. The default width is 72. fmt concatenates the inputfiles listed as arguments. If none are given, fmt formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. fmt does not fill nor split lines beginning with a `.' (dot), for compatibility with nroff(1). Nor does it fill or split a set of contiguous non-blank lines which is determined to be a mail header, the first line of which must begin with "From". Indentation is preserved in the output, and input lines with differing indentation are not joined (unless -c is used). fmt can also be used as an in-line text filter for vi(1). The vi command: !}fmt reformats the text between the cursor location and the end of the paragraph. OPTIONS
-c 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. -s 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. -w width | -width Fill output lines to up to width columns. OPERANDS
inputfile Input file. ENVIRONMENT VARIABLES
See environ(5) for a description of the LC_CTYPE environment variable that affects the execution of fmt. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
nroff(1), vi(1), attributes(5), environ(5) NOTES
The -width option is acceptable for BSD compatibility, but it may go away in future releases. SunOS 5.10 9 May 1997 fmt(1)
All times are GMT -4. The time now is 03:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy