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Full Discussion: Perl open(CMD, "cmd |"); buffering problem..
Top Forums Shell Programming and Scripting Perl open(CMD, "cmd |"); buffering problem.. Post 302593140 by Shawn, Lee on Wednesday 25th of January 2012 08:11:37 PM
Old 01-25-2012
Perl open(CMD, "cmd |"); buffering problem..
Hello,

There's a third-party application's command that shows the application's status like "tail -f verybusy.log". When use the command, the output comes every 1-sec. but when it goes in a script below the output comes every 8-sec...What is the problem and how can I fix it?

Code:
open(CMD, "/appbin/command |");
while(<CMD>){
        print;
}
close(CMD);

Thanks,
 

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LEARN ABOUT DEBIAN

vmware-toolbox-cmd

VMWARE-TOOLBOX-CMD(1)						   Open VM Tools					     VMWARE-TOOLBOX-CMD(1)

NAME

       vmware-toolbox-cmd - GUI toolbox (commandline version)

SYNOPSIS

       vmware-toolbox-cmd

DESCRIPTION

       This is a console version of vmware-toolbox, and depends on libvmtools and libguestlib.

OPTIONS

       vmware-toolbox-cmd has no options.

SEE ALSO

       vmware-checkvm(1)
       vmware-hgfsclient(1)
       vmware-user(1)
       vmware-xferlogs(1)
       libguestlib(3)
       libvmtools(3)
       vmware-guestd(8)
       vmware-hgfsmounter(8)
       vmware-toolbox(8)
       vmware-user-suid-wrapper(8)
       vmblock(9)
       vmci(9)
       vmhgfs(9)
       vmmemctl(9)
       vmsock(9)
       vmsync(9)
       vmxnet(9)
       vmxnet3(9)

HOMEPAGE

       More information about vmware-toolbox-cmd and the Open VM Tools can be found at <http://open-vm-tools.sourceforge.net/>.

AUTHOR

       Open VM Tools were written by VMware, Inc. <http://www.vmware.com/>.

       This  manual  page  was	put  together from homepage materials by Daniel Baumann <daniel.baumann@progress-technologies.net>, for the Debian
       project (but may be used by others).

2010.03.20-243334						    2010-04-08						     VMWARE-TOOLBOX-CMD(1)
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