Shell Script to end process help Post: 302303944

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Top Forums UNIX for Dummies Questions & Answers Shell Script to end process help Post 302303944 by dennis.jacob on Saturday 4th of April 2009 03:07:41 AM

04-04-2009

Registered User

Quote:

Originally Posted by NoobieBoobie

I'm trying to write shell script that when invoke, has 2 arguements, or 1.
If there's one arguement, then that's the process name. If there's 2, then one is the timeout.
USAGE: Assign1.sh <process> <timeout>
If no timeout was set, then the default timeout is 15 minutes.

So after it read the process and time out, then it check how long the process has been running, then check with the current time to see if it's been 15 minutes. If it has, then it kill the process, if it hasn't, then it exit.

Here's my script:

Code:

#!/bin/sh
#
#
if test $# -eq 2; then
    timeout=$2
elif test $# -eq 1; then
    timeout=15
else
echo "\tUsage: $0 <process> <timeout>"
fi
echo $timeout
USERNAME=`who am i | cut -f1 -d" "`
STIME=`ps -u $USERNAME -f | grep $1 | awk -F" " '{print$5}'`
STIME=`echo $STIME | awk -F" " '{print $2}'`
STIME=`$STIME | awk -F: '{print $1*60+$2}'`
PID=`ps -u $USERNAME -f | grep $1 | awk -F" " '{print$2}'`
PID=`echo $PID | awk -F" " '{print $2}'`
current_time=`date | awk -F" " '{print $4}'`
current_time=`$current_time | awk -F: '{print $1*60+$2}'`
timediff=`$current_time-$STIME`
if test $timediff -lt $timeout; then
        echo "$1 has not ran for $timeout yet."
else
echo "Kill $PID"

No idea why it's not working! :-(
Any help would be greatly appreciated

STIME=`echo $STIME | awk -F" " '{print $2}'` # what is the purpose of this??
STIME=`$STIME | awk -F: '{print $1*60+$2}'` # you have to put as echo $STIME before piping it to awk..

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pppoe-connect

PPPOE-CONNECT(8)					      System Manager's Manual						  PPPOE-CONNECT(8)

NAME

       pppoe-connect - Shell script to manage a PPPoE link

SYNOPSIS

       pppoe-connect [config_file]

       pppoe-connect interface user [config_file]

DESCRIPTION

       pppoe-connect  is  a  shell  script  which  manages a PPPoE connection using the Roaring Penguin user-space PPPoE client.  If you omit con-
       fig_file, the default file /etc/ppp/pppoe.conf is used.	If you supply interface and user, then they override the  Ethernet  interface  and
       user-name settings in the configuration file.

       Note that normally, you should not invoke pppoe-connect directly.  Instead, use pppoe-start to bring up the PPPoE connection.

       pppoe-connect  first  reads a configuration file.  It then brings up a PPPoE connection.  If the connection ever drops, a message is logged
       to syslog, and pppoe-connect re-establishes the connection.  In addition, each time the connection is dropped  or  cannot  be  established,
       pppoe-connect executes the script /etc/ppp/pppoe-lost if it exists and is executable.

       The shell script pppoe-stop causes pppoe-connect to break out of its loop, bring the connection down, and exit.

TECHNICAL DETAILS

       pppoe-connect uses the following shell variables from the configuration file:

       ETH    The Ethernet interface connected to the DSL modem (for example, eth0).

       USER   The PPPoE user-id (for example, b1xxnxnx@sympatico.ca).

       PIDFILE
	      A file in which to write the process-ID of the pppoe-connect process (for example, /var/run/pppoe.pid).  Two additional files ($PID-
	      FILE.pppd and $PIDFILE.pppoe) hold the process-ID's of the pppd and pppoe processes, respectively.

       By using different configuration files with different PIDFILE settings, you can manage multiple PPPoE connections.  Just specify  the  con-
       figuration file as an argument to pppoe-start and pppoe-stop.

AUTHOR

       pppoe-connect was written by David F. Skoll <dfs@roaringpenguin.com>.

       The pppoe home page is http://www.roaringpenguin.com/pppoe/.

SEE ALSO

       pppoe(8),  pppoe-start(8),  pppoe-stop(8), pppd(8), pppoe.conf(5), pppoe-setup(8), pppoe-status(8), pppoe-sniff(8), pppoe-server(8), pppoe-
       relay(8)

4th Berkeley Distribution					 21 February 2000						  PPPOE-CONNECT(8)