08-04-2011
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi everybody:
I try to print in new file selected lines from another file wich depends on the first column.
I have done a script like this:
lines=( "1" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11" "21" "31" "41" "51" "55" "57" "58" )
${lines}
for lines in ${lines}
do
awk -v ... (6 Replies)
Discussion started by: tonet
6 Replies
2. Shell Programming and Scripting
I have learned file comparison from my previous post here. Then, it is comparing the whole line. Now, i have a new problem.
I have two files with 3 columns separated with a "|". What i want to do is to compare the second and third column of file 1, and the second and third column of file 2. And... (4 Replies)
Discussion started by: kingpeejay
4 Replies
3. Shell Programming and Scripting
how can i reverse the line order in text files?
(but total number of the lines is not constant )
for example i have a file like this:
line1
line2
line3
.
.
lineN
i wantto make it like this:
lineN
.
.
.
line3 (26 Replies)
Discussion started by: gfhgfnhhn
26 Replies
4. Shell Programming and Scripting
My script(3 arguments $1 = folder,$2 extension,$3 string) should do the following things:
-Enter in the folder of $1(if exists).
-Put ls *.$2 > temp.txt ( I use a temp file to store the result of ls command and if $2 = txt in this file I'll have all the .txt files of the folder)
-Now I want to... (2 Replies)
Discussion started by: Max89
2 Replies
5. Shell Programming and Scripting
I am trying to print 1st, 2nd, 13th and 14th fields of a file of line numbers from 29 to 10029. I dont know how to put this in one code. Currently I am removing the selected lines by
awk 'NR==29,NR==10029' File1 > File2
and then doing
awk '{print $1, $2, $13, $14}' File2 > File3
Can... (3 Replies)
Discussion started by: ananyob
3 Replies
6. Shell Programming and Scripting
Hi all,
I have a question for the Gurus. I apologize if this has bee shared before but I couldn't find the link.
I am trying to read parameters from an external parameter file. What I m trying to achieve is read selected lines from an external parameter file into the script. for eg my param... (4 Replies)
Discussion started by: maverick1947
4 Replies
7. Shell Programming and Scripting
Hello,
I am using Awk in Ubuntu 12.04
First file: I have a file like this:
SNP1 1 198.2
SNP2 1 124.5
SNP3 1 124.4
.
.
.
Second file: I have another file like this:
SNP2
SNP5
SNP10
.
.
.
I want to create a third file like my first file but keeping ONLY the SNPs that... (8 Replies)
Discussion started by: Homa
8 Replies
8. Shell Programming and Scripting
Hi Guys ,
I have two files say a1 and a2 having following contents
a1
dag
wfd
a2
dag
wfd
chire
hcm
I want to delete only the lines in a2 which are in a1 and final output of a2 should be
a2
chire
hcm (6 Replies)
Discussion started by: Pradeep_1990
6 Replies
9. UNIX for Dummies Questions & Answers
I want to print only the lines in file2 that match file1, in the same order as they appear in file 1
file1
file2
desired output:
I'm getting the lines to match
awk 'FNR==NR {a++}; FNR!=NR && a' file1 file2
but they are in sorted order, which is not what I want:
Can anyone... (4 Replies)
Discussion started by: pathunkathunk
4 Replies
10. Shell Programming and Scripting
Hi,
I need help on a complicated file that I am working on. I wanted to extract important info from a very huge file. It is space delimited file. I have hundred thousands of records in this file. An example content of the inputfile as below:-
##
ID Ser402 Old; 23... (2 Replies)
Discussion started by: redse171
2 Replies
LEARN ABOUT MOJAVE
ptargrep
PTARGREP(1) Perl Programmers Reference Guide PTARGREP(1)
NAME
ptargrep - Apply pattern matching to the contents of files in a tar archive
SYNOPSIS
ptargrep [options] <pattern> <tar file> ...
Options:
--basename|-b ignore directory paths from archive
--ignore-case|-i do case-insensitive pattern matching
--list-only|-l list matching filenames rather than extracting matches
--verbose|-v write debugging message to STDERR
--help|-? detailed help message
DESCRIPTION
This utility allows you to apply pattern matching to the contents of files contained in a tar archive. You might use this to identify all
files in an archive which contain lines matching the specified pattern and either print out the pathnames or extract the files.
The pattern will be used as a Perl regular expression (as opposed to a simple grep regex).
Multiple tar archive filenames can be specified - they will each be processed in turn.
OPTIONS
--basename (alias -b)
When matching files are extracted, ignore the directory path from the archive and write to the current directory using the basename of
the file from the archive. Beware: if two matching files in the archive have the same basename, the second file extracted will
overwrite the first.
--ignore-case (alias -i)
Make pattern matching case-insensitive.
--list-only (alias -l)
Print the pathname of each matching file from the archive to STDOUT. Without this option, the default behaviour is to extract each
matching file.
--verbose (alias -v)
Log debugging info to STDERR.
--help (alias -?)
Display this documentation.
COPYRIGHT
Copyright 2010 Grant McLean <grantm@cpan.org>
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.18.2 2018-08-17 PTARGREP(1)