Handling Stdout&StdErr for background jobs.


 
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Old 05-30-2008
Handling Stdout&StdErr for background jobs.

Hello Friends,

sorry, i am not very familiar with Unix programming. Could you please help me on this?

We have to start different components from a startup script.

each components are started as below in the background in a startprocess function

$nohup $file $args >>$logFile 2>&1 &


after this the script calls some waiting method and waits in the logfile for some particular string as below

if grep -c "$pattern" $logFile>1; then ....

and go ahead with the next component.


We have now the problem that the background jobs continue writing into the log file even after startup and covering the disk space.
I am looking for a way to redirect the stdout of the background jobs to dev/null immediately after finding the successful start entry in the log.



Thanks in advance,

Alvin

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Handling Stdout&StdErr for background jobs.
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pyntor-components(1)						      Pyntor						      pyntor-components(1)

NAME
pyntor-components - manage components for the presentation program Pyntor SYNOPSIS
pyntor-components [OPTIONS] DESCRIPTION
Pyntor-components is a helper utility which deals with all the components which are made available to Pyntor. Components can reside in the installation directory, but the user can override them with a user directory and again with components in the current directory. Pyntor- components helps to sort through the available components by listing them. In case the component comes with documentation included, it can be displayed as well. OPTIONS
-l, --list Displays a formatted list of all components. For each component, all occurrences are reported, which might be between one and three directories. -d, --doc=component Displays the documentation for the specified component. If no documentation is included, or the component could not be loaded, an error is displayed instead. -u, --update Displays a graphical dialog which allows the download of new components via the GHNS (Get Hot New Stuff) framework. Components are installed into ~/.pyntor/components and can be used immediately. This is an experimental feature based on the SDLNewStuff library. -v, --version Displays the version number of Pyntor-components. -h, --help Displays a summary of all available command line options. AUTHORS
Josef Spillner <josef@coolprojects.org> SEE ALSO
pyntor(1), pyntor-selfrun(1) Cool Projects 0.6 pyntor-components(1)