Sponsored Content
Top Forums Shell Programming and Scripting Capture output of command triggered in background Post 302840669 by jawsnnn on Tuesday 6th of August 2013 08:53:35 AM
Old 08-06-2013
Capture output of command triggered in background

Is there any way to trigger a sequence of commands in parallel and capture their output in variables? e.g. something on the following lines

Code:
x=`echo "X" &`
y=`echo "Y" &`
z=`echo "Z" &`

so that $x, $y, and $z evaluate to X, Y and Z res.
 

10 More Discussions You Might Find Interesting

1. Solaris

how to capture oracle export log while running as background process

I ran the Oracle 9i export command from a terminal to export out a big table using "exp andrew/password file=andrew.dmp log=andrew.log" From the terminal I can see that the export is running as there is some output from the oracle export job. The export job is not complete yet. When i go check... (4 Replies)
Discussion started by: hippo2020
4 Replies

2. Shell Programming and Scripting

[csh] How to capture output from a command and pass it on to a variable?

Hi there! I'm trying to write a script that will capture output from a command and assign it to a variable. Let's say, for example, I'd like to catch from inside the script whatever the following command outputs: ls *.aaa and put it into a variable "listoffiles". What I tried was: set... (3 Replies)
Discussion started by: machinogodzilla
3 Replies

3. Shell Programming and Scripting

How do I capture multiple lines of the status output of a command?

I need to know what the upload speed of an Internet connection. I thought the easiest way to do this would be to transfer a file via FTP to my server using the command: sh-3.2$ ftp -u ftp://username:password@computerdomain/directory/ file_to_be_uploaded Note: My environment allows me to issue... (2 Replies)
Discussion started by: zzz1528
2 Replies

4. Solaris

How to capture only some part of output when command executed??

Hi, When I execute this command prtdiag -v output sample : System clock frequency: 160 MHZ Memory size: 4GB ==================================== CPUs ==================================== E$ CPU CPU CPU Freq Size ... (4 Replies)
Discussion started by: vijaysachin
4 Replies

5. Shell Programming and Scripting

Enter the command to capture output--help

&& echo "PLEASE enter the command to capture output" || echo "Processing your command manual" x=$# echo $x while do while man $@ | read -r line do >$@.txt ... (1 Reply)
Discussion started by: rrd1986
1 Replies

6. Shell Programming and Scripting

Log Capture for Background Process

Hi , I am running a backgorund process called hello.sh ./hello & Now i need to capture the log file as it produces the output . i am not able to use " >> " nor " tee " to capture the output file / log file . Please let me know how can i do it ? Regards, Deepak Konnur (3 Replies)
Discussion started by: dskonnur
3 Replies

7. Solaris

How to capture Output of truus command

Hi I want to check if some process is sleeping. I can see that in truss -p <pid> I want to capture output and check that output if proces sis sleeping. Please suggest way to capture output of truss command or other way to check if process is sleeping (1 Reply)
Discussion started by: ankush_mehra
1 Replies

8. Shell Programming and Scripting

Expect command when triggered by launchd

Hi folks, Im having trouble with an expect command in a shell script I use to back up mac os x servers. This one is being run on a 10.8.2 Server as part of a larger bash script. The script executes perfectly all the way through when triggered on the command line, but when launchd triggers it at... (4 Replies)
Discussion started by: rowie718
4 Replies

9. HP-UX

How capture all user command line output?

Hi I want to know how capture all user command line output and save this commands and outputs to text files? if you have script for this subject please give me.:o please help me thank you (6 Replies)
Discussion started by: amvhd
6 Replies

10. Programming

Python Paramiko multi threading to capture all output for command applied in loop

My issue : I am getting only last command output data in ouput file. Though comamnd "print(output)" displays data for all 3rd column values but the data saved in file is not what required it hs to be the same which is being printed by command"print(output)". Could you please help me to fix this,... (0 Replies)
Discussion started by: as7951
0 Replies
App::Cmd::Tester::CaptureExternal(3pm)			User Contributed Perl Documentation		    App::Cmd::Tester::CaptureExternal(3pm)

NAME
App::Cmd::Tester::CaptureExternal - Extends App::Cmd::Tester to capture from external subprograms VERSION
version 0.318 SYNOPSIS
use Test::More tests => 4; use App::Cmd::Tester::CaptureExternal; use YourApp; my $result = test_app(YourApp => [ qw(command --opt value) ]); like($result->stdout, qr/expected output/, 'printed what we expected'); is($result->stderr, '', 'nothing sent to sderr'); ok($result->output, "STDOUT concatenated with STDERR"); DESCRIPTION
App::Cmd::Tester provides a useful scaffold for testing applications, but it is unable to capture output generated from any external subprograms that are invoked from the application. This subclass uses an alternate mechanism for capturing output (Capture::Tiny) that does capture from external programs, with one major limitation. It is not possible to capture externally from both STDOUT and STDERR while also having appropriately interleaved combined output. Therefore, the "output" from this subclass simply concatenates the two. You can still use "output" for testing if there is any output at all or for testing if something appeared in either output stream, but you can't rely on the ordering being correct between lines to STDOUT and lines to STDERR. AUTHOR
Ricardo Signes <rjbs@cpan.org> COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Ricardo Signes. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. perl v5.14.2 2012-05-05 App::Cmd::Tester::CaptureExternal(3pm)
All times are GMT -4. The time now is 10:54 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy