I have a shell script that I am pulling different zip file packages and totaling how many of each type of package is in the directory. I get a bogus total count of one in the middle of my output file (highlighted in RED) and not sure why, also would like to get a grand total of all files but not... (2 Replies)
Hi Friends,
Need help regarding counting the word "friend" in files test1.txt and test2.txt. ( there is no gap/space between word )
cat test1.txt
himynameisrajandiamfriendofrajeshfriend
wouldyouliketobemyfriend.
cat test2.txt
himynameisdostandiamfriendofdostfriend... (2 Replies)
I'm using awk to determine if a field starting in position 604 for length of 10 is not equal to ALL spaces. It's searching several files which are in the current directory.
The below awk indicates that there are 84 records on all files where this field IS NOT equal to ALL spaces ( there are 10... (2 Replies)
i want to find the no:of occurrences of a word in a file
cat 1.txt
unix script unix script
unix script unix script unix script unix script
unix script unix script unix
unix
script
unix script unix script now i want to find , how many times 'unix' was occurred
please help me
thanks... (6 Replies)
Hi All,
When i give ls -ltr i get 'total 10' like this along with files long listing. is there any option in ls command to remove this line or do we need use head -1 command only.
$ls -ltr
total 45
-rw-r--r-- 1 abc g1 0 Jul 17 07:20 0
-rw-r--r-- 1 abc g1 744 May 9 12:10 a
-rw-r--r--... (1 Reply)
Dear all,
I have a directory consisted of files in .jpg, .jpeg etc..all of them are image
20140411030143_62811159403_92886.jpg 5/11/2014 15:01 197K
20140415024737_62811618747_116460.jpg 4/15/2014 14:47 17K
20140415031003_62811618747_109192.jpg 4/17/2014 15:10 17K... (4 Replies)
I have list of file names in filename.txt
below is file format
>>File1
_________________________
01~12345~Y~YES~aaaaa~can
02~23456~N~NO~bbbbb~can
.
.
.
99~23__________________________
Need to find total count from each file depending on specific string and add them to have total count... (17 Replies)
Hi all,
I have found another post threads talking about count duplicate lines, but I am interested in obtain the total number of duplicates. For example:
#file.txt
a1
a2
a1
a3
a1
a2
a4
a5
#out
3 (lines are duplicates)
Thank you! (12 Replies)
Discussion started by: mikloz
12 Replies
LEARN ABOUT CENTOS
io::pipe
IO::Pipe(3pm) Perl Programmers Reference Guide IO::Pipe(3pm)NAME
IO::Pipe - supply object methods for pipes
SYNOPSIS
use IO::Pipe;
$pipe = IO::Pipe->new();
if($pid = fork()) { # Parent
$pipe->reader();
while(<$pipe>) {
...
}
}
elsif(defined $pid) { # Child
$pipe->writer();
print $pipe ...
}
or
$pipe = IO::Pipe->new();
$pipe->reader(qw(ls -l));
while(<$pipe>) {
...
}
DESCRIPTION
"IO::Pipe" provides an interface to creating pipes between processes.
CONSTRUCTOR
new ( [READER, WRITER] )
Creates an "IO::Pipe", which is a reference to a newly created symbol (see the "Symbol" package). "IO::Pipe::new" optionally takes two
arguments, which should be objects blessed into "IO::Handle", or a subclass thereof. These two objects will be used for the system call
to "pipe". If no arguments are given then method "handles" is called on the new "IO::Pipe" object.
These two handles are held in the array part of the GLOB until either "reader" or "writer" is called.
METHODS
reader ([ARGS])
The object is re-blessed into a sub-class of "IO::Handle", and becomes a handle at the reading end of the pipe. If "ARGS" are given
then "fork" is called and "ARGS" are passed to exec.
writer ([ARGS])
The object is re-blessed into a sub-class of "IO::Handle", and becomes a handle at the writing end of the pipe. If "ARGS" are given
then "fork" is called and "ARGS" are passed to exec.
handles ()
This method is called during construction by "IO::Pipe::new" on the newly created "IO::Pipe" object. It returns an array of two objects
blessed into "IO::Pipe::End", or a subclass thereof.
SEE ALSO
IO::Handle
AUTHOR
Graham Barr. Currently maintained by the Perl Porters. Please report all bugs to <perlbug@perl.org>.
COPYRIGHT
Copyright (c) 1996-8 Graham Barr <gbarr@pobox.com>. 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 2013-03-04 IO::Pipe(3pm)