Sponsored Content
Full Discussion: doubt about pipes
Top Forums Shell Programming and Scripting doubt about pipes Post 83002 by evergreen_cool on Friday 9th of September 2005 06:58:14 AM
Old 09-09-2005
hey thanks for the prompt reply pal....so this can be generalized for any command tht takes two ommand line arguments like grep??
newaz got another one...is there an equivalent in unix for the split() function in perl
thnx a ton
 

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

PIPEs and Named PIPEs (FIFO) Buffer size

Hello! How I can increase or decrease predefined pipe buffer size? System FreeBSD 4.9 and RedHat Linux 9.0 Thanks! (1 Reply)
Discussion started by: Jus
1 Replies

2. Shell Programming and Scripting

cd using pipes

Hi, Can the cd command be invoked using pipes??? My actual question is slightly different. I am trying to run an executable from different folders and the path of these folders are obtained dynamically from the front end. Is there a way in which i can actually run the executable... (2 Replies)
Discussion started by: Sinbad
2 Replies

3. UNIX for Dummies Questions & Answers

Two types of pipes?

What is the difference between: cd /tmp tar -cf - *.txt |gzip > tmp_txt.tar.gz and cd /tmp mknod pipe p gzip < pipe > /tmp/tmp_txt1.tar.gz & tar -cf pipe *.txt Apart from the fact that we have to create the pipe file manually, is there any difference in the performance of the two?... (5 Replies)
Discussion started by: blowtorch
5 Replies

4. UNIX for Advanced & Expert Users

FIFO Pipes

Hi...Can anyone please guide me on FIFO Pipes in UNIX.I have lerant things like creating fifo pipes,using them for reads and writes etc.I want to know what is the maximum amount of memory that such a pipe may have? Also can anyone guide me on where to get info on this topic from? (4 Replies)
Discussion started by: tej.buch
4 Replies

5. UNIX for Advanced & Expert Users

Consolidating Pipes

This is something I've given a lot of thought to and come up with no answer. Say you have a data stream passing from a file, through process A, into process B. Process A only modifies a few bytes of the stream, then prints the rest of the stream unmodified. Is there any way to stream the file... (4 Replies)
Discussion started by: Corona688
4 Replies

6. Shell Programming and Scripting

Help with pipes in a file

I have to add pipes for particualr number of records in a file. For eg the file has 10 records and i need to add the "|" for records numbers 7 to 10 at particular positons as shown. I need to add pipes in each of these records at positions 9, 11,,21 as like below. Can some body... (7 Replies)
Discussion started by: dsravan
7 Replies

7. Shell Programming and Scripting

named pipes

How to have a conversation between 2 processes using named pipes? (5 Replies)
Discussion started by: kanchan_agr
5 Replies

8. UNIX for Dummies Questions & Answers

pipes and shells

Hi How do I direct the output from ls to for example grep a in C. I am not asking for the whole shell implementation. If I write ls|grep myfile in the shell. How is the output sent from ls to the input grep. whit int pipe(pipe); We create the pipe. I and I guess we use dup2(old... (4 Replies)
Discussion started by: isato
4 Replies

9. Shell Programming and Scripting

Doubt about pipes and subprocess

Hi, I am having a trivial doubt. Please see the below pipeline code sequence. command1 | (command 2; commend 3) I am aware that the command that follows pipe will run in the sub shell by the Unix kernel. But how about here? Since these set of commands are grouped under "parantheses", will... (6 Replies)
Discussion started by: royalibrahim
6 Replies

10. Programming

Pipes in C

Hello all, I am trying to learn more about programming Unix pipes in C. I have created a pipe that does od -bc < myfile | head Now, I am trying to create od -bc < myfile | head | wc Here is my code, and I know I might be off, thats why I am here so I can get some clarification. #include... (1 Reply)
Discussion started by: petrca
1 Replies
PFUNC(1)						User Contributed Perl Documentation						  PFUNC(1)

NAME
pfunc - grep for perl functions SYNOPSIS
pfunc subroutine FILES... DESCRIPTION
pfunc searches the named FILES for all calls to the given subroutine. It will report back the file and line number each call is found on along with what sort of call it is function foo() class method Class->foo() object method $obj->foo() EXAMPLE
$ pfunc isa /usr/share/perl/5.6.1/*.pm Called as function in /usr/share/perl/5.6.1/CGI.pm at line 316 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 327 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 397 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 494 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 495 Called as object method in /usr/share/perl/5.6.1/CPAN.pm at line 4957 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 191 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 218 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 248 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 251 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 254 Called as object method in /usr/share/perl/5.6.1/Shell.pm at line 28 Called as object method in /usr/share/perl/5.6.1/base.pm at line 12 NOTES
Its not fast, but its accurate. AUTHOR
Michael G Schwern <schwern@pobox.com> SEE ALSO
Module::Info perl v5.12.1 2002-12-05 PFUNC(1)
All times are GMT -4. The time now is 11:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy