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Shell Programming and Scripting
How to print warning messages on console when we use exec command?
Post 302869831 by VSom007 on Thursday 31st of October 2013 08:30:28 AM
10-31-2013
Thanks Scott! 
It works..
Cheers !!!
It works.. Cheers !!!
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LEARN ABOUT DEBIAN
btrace
BTRACE(8) BTRACE(8) NAME
btrace - perform live tracing for block devices SYNOPSIS
btrace [-s] [-t] [-w N] [-n N] [-b N] [-r <dbg mnt>] [-a <trace>...] <dev>... DESCRIPTION
The btrace script provides a quick and easy way to do live tracing of block devices. It calls blktrace on the specified devices and pipes the output through blkparse for formatting. See blktrace (8) for more in-depth information about how blktrace works. OPTIONS
-s Displays data sorted by program (see blkparse (1)). -t Displays time deltas per IO (see blkparse (1)). -w N Sets run time to the number of seconds specified (see blktrace (8)). -n N Specifies the number of buffers to use (see blktrace (8)). -b N Specifies buffer size for event extraction (scaled by 1024) (see blktrace (8)). -r <dbg mnt> Specifies the debugfs mountpoint. -a <trace>... Adds mask to current filter (see blktrace (8)). <dev> Specifies the device to trace. EXAMPLE
Simply running % btrace /dev/sda will show a trace of the device /dev/sda. AUTHORS
blkparse was written by Jens Axboe, Alan D. Brunelle and Nathan Scott. This man page was created from the blktrace documentation by Bas Zoetekouw. REPORTING BUGS
Report bugs to <linux-btrace@vger.kernel.org> COPYRIGHT
Copyright (C) 2006 Jens Axboe, Alan D. Brunelle and Nathan Scott. This is free software. You may redistribute copies of it under the terms of the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the extent permitted by law. This manual page was created for Debian by Bas Zoetekouw. It was derived from the documentation provided by the authors and it may be used, distributed and modified under the terms of the GNU General Public License, version 2. On Debian systems, the text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-2. SEE ALSO
blktrace (8), blkparse (1), verify_blkparse (1), blkrawverify (1), btt (1) blktrace git-20070306202522 March 6, 2007 BTRACE(8)