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Full Discussion: Export command - variable
Top Forums Shell Programming and Scripting Export command - variable Post 303033198 by baris35 on Monday 1st of April 2019 11:11:00 AM
Old 04-01-2019
Export command - variable
Hello,
Please see the script found in my computer below. (Ubuntu 14.04)
Code:
#!/bin/sh
export APP_DIR="/home/appname"
monitorscript="$APP_DIR""/monitor.sh"
ps cax | grep monitor.sh > /dev/null
if [ $? -eq 0 ]; then
echo "monitor.sh is running"
else
"$monitorscript"
fi

My question is regarding EXPORT command
I know everybody has their own style on coding but I wonder why do we use EXPORT to assign/call a variable to monitorscript variable?

Thank you
Boris
 

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LEARN ABOUT SUSE

dbus-monitor

dbus-monitor(1) 					      General Commands Manual						   dbus-monitor(1)

NAME

       dbus-monitor - debug probe to print message bus messages

SYNOPSIS

       dbus-monitor [--system | --session | --address ADDRESS] [--profile | --monitor] [watch expressions]

DESCRIPTION

       The  dbus-monitor command is used to monitor messages going through a D-Bus message bus.  See http://www.freedesktop.org/software/dbus/ for
       more information about the big picture.

       There are two well-known message buses: the systemwide message bus (installed on many systems as the "messagebus"  service)  and  the  per-
       user-login-session  message  bus (started each time a user logs in).  The --system and --session options direct dbus-monitor to monitor the
       system or session buses respectively.  If neither is specified, dbus-monitor monitors the session bus.

       dbus-monitor has two different output modes, the 'classic'-style monitoring mode and profiling mode. The profiling format is a compact for-
       mat  with a single line per message and microsecond-resolution timing information. The --profile and --monitor options select the profiling
       and monitoring output format respectively. If neither is specified, dbus-monitor uses the monitoring output format.

       In order to get dbus-monitor to see the messages you are interested in, you should specify a set of watch expressions as you  would  expect
       to be passed to the dbus_bus_add_match function.

       The message bus configuration may keep dbus-monitor from seeing all messages, especially if you run the monitor as a non-root user.

OPTIONS

       --system
	      Monitor the system message bus.

       --session
	      Monitor the session message bus.	(This is the default.)

       --address ADDRESS
	      Monitor an arbitrary message bus given at ADDRESS.

       --profile
	      Use the profiling output format.

       --monitor
	      Use the monitoring output format.  (This is the default.)

EXAMPLE

       Here is an example of using dbus-monitor to watch for the gnome typing monitor to say things

	 dbus-monitor "type='signal',sender='org.gnome.TypingMonitor',interface='org.gnome.TypingMonitor'"

AUTHOR

       dbus-monitor was written by Philip Blundell.  The profiling output mode was added by Olli Salli.

BUGS

       Please send bug reports to the D-Bus mailing list or bug tracker, see http://www.freedesktop.org/software/dbus/

																   dbus-monitor(1)
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