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Full Discussion: Stop a program without breaking the script?
Top Forums Shell Programming and Scripting Stop a program without breaking the script? Post 302385541 by ppucci on Friday 8th of January 2010 12:08:42 PM
Old 01-08-2010
Stop a program without breaking the script?
Hello there!

I am creating a script, that among other functions will run iperf (network stress tool) either on server or client mode.

The thing is that it will run forever if the user does not stop it or break it. CTRL-C will break it. I need a method, however, that will break iperf and then return to the script line right after where it was called:

Code:
echo -n "  Choose mode: [C]lient or [S]erver: "
read MODE
while [ "$MODE" != "C" -a "$MODE" != "S" ]
do
if [ "$MODE" == "S"  ]
then
	iperf -s -i 1
	exit
else
	if [ "$MODE" == "C"  ]
	then
		echo ""
		echo "  Server IP?:"
		read IP
		iperf -c $IP -t 300 -i 1
		exit
	else
	fi
fi
done

Any ideas?
 

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LEARN ABOUT CENTOS

service

service(8)						      System Manager's Manual							service(8)

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working
       directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT.  The  supported  values  of  COMMAND  depend  on  the
       invoked	script,  service  passes  COMMAND and OPTIONS it to the init script unmodified.  All scripts should support at least the start and
       stop commands.  As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the  start
       command.

       service --status-all runs all init scripts, in alphabetical order, with the status command.

       If the init script file does not exist, the script tries to use legacy actions.	If there is no suitable legacy action found and COMMAND is
       one of actions specified in LSB Core Specification, input is redirected to the systemctl.  Otherwise the command fails with return code 2.

FILES

       /etc/init.d
	      The directory containing System V init scripts.

ENVIRONMENT

       LANG, TERM
	      The only environment variables passed to the init scripts.

SEE ALSO

       chkconfig(8), ntsysv(8), systemd(1), systemctl(8), systemd.service(5)

								     Jan 2006								service(8)
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