hi,
how would i extract a range of lines in a file by using the line number? ex: file contains:
1 title
2 i want
3 this part
4 to be taken out
5 from this file
6 and sent to
7 another file
8 not needed
9 end of file
In this case, i want to copy line number 2 to 7 on a new... (2 Replies)
Hello,
I have a very large text file with about 2 million lines.
Each of the lines starts like..
SNP_12345678 A 1212, 121, 343, ...
SNP_12345678 B 4567, 567, 454, ...
and so on.
I want to extract specific SNPs and plot them by GNUplot or excel.
The file is too large to be opened by text... (1 Reply)
Hi
I want to extract certain text between two line numbers like
23234234324 and
54446655567567
How do I do this with a simple sed or awk command?
Thank you.
---------- Post updated at 06:16 PM ---------- Previous update was at 05:55 PM ----------
found it:
sed -n '#1,#2p'... (1 Reply)
I regularly extract lines of text from files based on the presence of a particular keyword; I place the extracted lines into another text file. This takes about 2 hours to complete using the "sort" command then Kate's find & highlight facility.
I've been reading the forum & googling and can find... (4 Replies)
I would like to extract specific lines from a file and output them into another file.
Each line in the file has a unique ID, and I have a specific list of IDs (that are not consecutive) that I wish to extract.
for example:
1 aaaaaa bbbcb cccccc
2 aaaaaa bbbbb cccccd
3 aaaaaa bbbab... (6 Replies)
Hi,
I have a file which contains DDL statements- CREATE TABLE, CREATE INDEX, ALTER TABLE etc.
I have to only pick CREATE TABLE statements from the file-
Source :
----------------------------------------------
--DDL for table abc
--------------------------------------------
CREATE TABLE... (4 Replies)
Hi friends,
This is sed & awk type question.
I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example
###start of input text file ####
abc
def
ghi
1
2
3
4
kjld
random... (3 Replies)
Dear all,
Greetings.
I would like to ask for your help to extract lines with specific words in addition 2 lines before and after these lines by using awk or sed.
For example, the input file is:
1 ak1 abc1.0
1 ak2 abc1.0
1 ak3 abc1.0
1 ak4 abc1.0
1 ak5 abc1.1
1 ak6 abc1.1
1 ak7... (7 Replies)
Hi there,
I need a help with extracting data from tab delimited file which look like this
#CHROM POS ID REF ALT Human Cow Dog Mouse Lizard
chr2 3033 . G C 0/0 0/0 0/0 1/1 0/0
chr3 35040 . G T 0/0 0/0 ./. 1/1 0/1
chr4 60584 . T G 1/1 1/1 0/1 1/1 0/0
chr10 7147815 . G A 0/0 1/1 0/0 0/0... (9 Replies)
I have a folder containing text files. I need to extract specific lines from the files of this folder based on another file input.txt. How can I do this with awk/sed?
file1
ARG 81.9 8 81.9 0
LEU 27.1 9 27.1 0
PHE .0 10 .0 0
ASP 59.8 11 59.8 0
ASN 27.6 12 27.6 0
ALA .0 13 .0 0... (5 Replies)
Discussion started by: alanmathew84
5 Replies
LEARN ABOUT DEBIAN
file::touch
Touch(3pm) User Contributed Perl Documentation Touch(3pm)NAME
File::Touch - update access and modification timestamps, creating nonexistent files where necessary.
SYNOPSIS
use File::Touch;
@file_list = ('one.txt','../two.doc');
$count = touch(@file_list);
use File::Touch;
$reference_file = '/etc/passwd';
$touch_obj = File::Touch->new(
reference => $reference_file,
no_create => 1
);
@file_list = ('one.txt','../two.doc');
$count = $touch_obj->touch(@file_list);
DESCRIPTION
Here's a list of arguments that can be used with the object-oriented contruction:
atime_only => [0|1]
If nonzero, change only the access time of files. Default is zero.
mtime_only => [0|1]
If nonzero, change only the modification time of files. Default is zero.
no_create => [0|1]
If nonzero, do not create new files. Default is zero.
reference => $reference_file
If defined, use timestamps from this file instead of current time. Default is undefined.
atime => $time
If defined, use this time (in epoch seconds) instead of current time for access time.
mtime => $time
If defined, use this time (in epoch seconds) instead of current time for modification time.
Examples
Update access and modification times, creating nonexistent files
use File::Touch;
my @files = ('one','two','three');
my $count = touch(@files);
print "$count files updated
";
Set access time forward, leave modification time unchanged
use File::Touch;
my @files = ('one','two','three');
my $day = 24*60*60;
my $time = time() + 30 * $day;
my $ref = File::Touch->new( atime_only => 1, time => $time );
my $count = $ref->touch(@files);
print "$count files updated
";
Set modification time back, update access time, do not create nonexistent files
use File::Touch;
my @files = ('one','two','three');
my $day = 24*60*60;
my $time = time() - 30 * $day;
my $ref = File::Touch->new( mtime => $time, no_create => 1 );
my $count = $ref->touch(@files);
print "$count files updated
";
AUTHOR
Nigel Wetters Gourlay (nwetters@cpan.org)
COPYRIGHT
Copyright (c) 2001,2007,2009 Nigel Wetters Gourlay. All Rights Reserved. This module is free software. It may be used, redistributed
and/or modified under the same terms as Perl itself.
perl v5.10.0 2009-07-25 Touch(3pm)