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Full Discussion: kill process from a file or directly with top
Top Forums Shell Programming and Scripting kill process from a file or directly with top Post 302499803 by methyl on Friday 25th of February 2011 12:11:57 PM
Old 02-25-2011
What Operating System and version are you running?
I assume from the error message that /bin/sh is a link to bash on your system.

I don't think that "top" is suitable for this exercise because of the amount of irrelevant screen control characters etc. you will get. The formatted output from "top" is unsuitable for processing in unix Shell.
Really needs to use the "ps" command (not "top") combined with some base logic to decide if the process is rogue.


In general, never issue "kill -9" unless you are having trouble shutting a system down. Certainly never issue "kill -9" to a database process while the database is up.

Btw. The first script contains an error (wrong sort of quotes) but this does not mean that the script will work:
Quote:
proc='cat pid'
 

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LEARN ABOUT LINUX

mysql_zap

MYSQL_ZAP(1)						       MySQL Database System						      MYSQL_ZAP(1)

NAME

       mysql_zap - kill processes that match a pattern

SYNOPSIS

       mysql_zap [-signal] [-?Ift] pattern

DESCRIPTION

       mysql_zap kills processes that match a pattern. It uses the ps command and Unix signals, so it runs on Unix and Unix-like systems.

       Invoke mysql_zap like this:

	   shell> mysql_zap [-signal] [-?Ift] pattern

       A process matches if its output line from the ps command contains the pattern. By default, mysql_zap asks for confirmation for each
       process. Respond y to kill the process, or q to exit mysql_zap. For any other response, mysql_zap does not attempt to kill the process.

       If the -signal option is given, it specifies the name or number of the signal to send to each process. Otherwise, mysql_zap tries first
       with TERM (signal 15) and then with KILL (signal 9).

       mysql_zap supports the following additional options:

       o   --help, -?, -I

	   Display a help message and exit.

       o   -f

	   Force mode.	mysql_zap attempts to kill each process without confirmation.

       o   -t

	   Test mode. Display information about each process but do not kill it.

COPYRIGHT

       Copyright (C) 1997, 2014, Oracle and/or its affiliates. All rights reserved.

       This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as
       published by the Free Software Foundation; version 2 of the License.

       This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation,
       Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.

SEE ALSO

       For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
       at http://dev.mysql.com/doc/.

AUTHOR

       Oracle Corporation (http://dev.mysql.com/).

MySQL 5.5							    01/30/2014							      MYSQL_ZAP(1)
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