02-06-2015
Great, perfect..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I am new to shell scripting, and I am trying to create a script that reads an input like the following
firstname:lastname:age
firstname:lastname:age
firstname:lastname:age
in a text file. I have a 2 part question. First how do I open the file in a shell script. And then how can... (7 Replies)
Discussion started by: TexasGuy
7 Replies
2. Shell Programming and Scripting
Hi all,
Iam trying to sort the contents of the file based on the position of the file.
Example:
$cat sample.txt
0101020060731 ## Header record
1c1 Berger Awc ANP20070201301 4000.50
1c2 Bose W G ANP20070201609 6000.70
1c2 Andy CK ANP20070201230 28000.00... (3 Replies)
Discussion started by: ganapati
3 Replies
3. Shell Programming and Scripting
hi to all
im having some 20,000 files in that im having some contents say the tabulation of biophysics lab readings ... and i want read tat file and look into tat wether a number say -18.90 is there r not .. and if there print tat no wit file name beside
thank you:D (1 Reply)
Discussion started by: maximas
1 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I have already read a lot of posts on sending attachments in unix...but none of them were of help for my problem...so here goes..
i wanna attach a text file and send to a mail id..used the following code :
uuencode "$File1" "$File1" ;|mail -s "$Mail_sub" abc@abc.com
it works... (2 Replies)
Discussion started by: ash22
2 Replies
5. Shell Programming and Scripting
HI guys,
I have created a script to read 1 column in a csv file and then place it in text file.
However, when i checked out the text file, it is not in a column format...
Example:
CSV file contains
name,age
aa,11
bb,22
cc,33
After using awk to get first column
TXT file... (1 Reply)
Discussion started by: mdap
1 Replies
6. Programming
Hi,
I have a .txt file which contains the x, y and z co-ordinates of particles which I am trying to cast for a particular compound. The no. of particles present is of the order of 2 billion and hence the size of the text file is of the order of a few Gigabytes. The particles have been casted layer... (5 Replies)
Discussion started by: mugga
5 Replies
7. Shell Programming and Scripting
This is appending a column.
My question is fairly simple. I have a program generating data in a form like so:
1 20
2 22
3 23
4 12
5 43
For ever iteration I'm generating this data. I have the basic idea with cut -f 2 fileA.txt | paste -d >> FileB.txt ???? I want FileB.txt to grow, and... (4 Replies)
Discussion started by: theawknewbie
4 Replies
8. Shell Programming and Scripting
Dear Shell scripters,
I have a small code which copy the txt files from some destination to file name OutPutFile.
I want to modify this script to introduce several constant.
The string it is reading is like
... (2 Replies)
Discussion started by: nrjrasaxena
2 Replies
9. Shell Programming and Scripting
I want to add/append the info in the following format to my.txt file.
20130702|abcd20130702.txt FN|SN|DOB
I tried the below script but it throws me some exceptions.
<#!/bin/sh
dt = date '+%y%m%d'members;
echo $dt+|+members+$dt;
/usr/bin/awk -f
BEGIN { FS="|"; OFS="|"; } { print... (6 Replies)
Discussion started by: harik1982
6 Replies
10. Shell Programming and Scripting
Hi dears
i have text file like this:
INPUT.txt
001_1_173 j nuh ]az
001_1_174 j ]esma. nuh ]/.xori
.
.
. and have another text
like this
TABLE.txt
j j
nuh word1... (6 Replies)
Discussion started by: alii
6 Replies
LEARN ABOUT CENTOS
perl::critic::policy::inputoutput::prohibittwoargopen
Perl::Critic::Policy::InputOutput::ProhibitTwoArgOpen(3)User Contributed Perl DocumentatioPerl::Critic::Policy::InputOutput::ProhibitTwoArgOpen(3)
NAME
Perl::Critic::Policy::InputOutput::ProhibitTwoArgOpen - Write "open $fh, q{<}, $filename;" instead of "open $fh, "<$filename";".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
The three-argument form of "open" (introduced in Perl 5.6) prevents subtle bugs that occur when the filename starts with funny characters
like '>' or '<'. The IO::File module provides a nice object-oriented interface to filehandles, which I think is more elegant anyway.
open( $fh, '>output.txt' ); # not ok
open( $fh, q{>}, 'output.txt' ); # ok
use IO::File;
my $fh = IO::File->new( 'output.txt', q{>} ); # even better!
It's also more explicitly clear to define the input mode of the file, as in the difference between these two:
open( $fh, 'foo.txt' ); # BAD: Reader must think what default mode is
open( $fh, '<', 'foo.txt' ); # GOOD: Reader can see open mode
This policy will not complain if the file explicitly states that it is compatible with a version of perl prior to 5.6 via an include
statement, e.g. by having "require 5.005" in it.
CONFIGURATION
This Policy is not configurable except for the standard options.
NOTES
There are two cases in which you are forced to use the two-argument form of open. When re-opening STDIN, STDOUT, or STDERR, and when doing
a safe pipe open, as described in perlipc.
SEE ALSO
IO::Handle
IO::File
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.16.3 2014-06-09 Perl::Critic::Policy::InputOutput::ProhibitTwoArgOpen(3)