A traditional way is for a process to create a PID file under /var/run/. I create it under /tmp/ just as an example that can run as any user. I also use a fifo as a lock file to prevent a race condition.
Hi,
I am writing a shell script to invoke a C++ program. Before I start the C++ program (oi7loadbalancer), I am checking if the process is already running. I start the process only if it is not already running. I have the following check in my script.
proccount=`ps -f -u $USER_NAME | grep... (8 Replies)
I have this script:
-------------------------------------------------------
#!/bin/ksh
#
if ] ||
]
then
echo "Executing main_load.sh script"
/usr1/psc_load/jobs/cron/main_load.sh "ods"
else
echo "File not found, do nothing"
fi
exit 0
... (4 Replies)
I have a requirement to check how long a process is running on unix system.If i use ps -ef i am getting the following message
guest 2453638 1998920 0 16:16:05 - 0:00 dsapi_slave 9 8 0
but this is showing only time not the date.Can any one please advice me any script to find out how... (2 Replies)
Hi ,
I have a csh code below which check the process if it's running.
Can any expert advise me on the following:
1) what does this notationmean ">!" and how is it different from the append ">" notation ?
2) how does "setenv" work in this code ?
# Check whether there is a running... (3 Replies)
Hi
What is the best command to check if a particular process is running in a linux server or not
To check any java process, I use the below command.
ps -ef |grep jvm
When I execute the above command, it lists me all the processess . The above command should ideally return only the... (6 Replies)
How to I check if a process is running in C? I'm trying to use ps aux |grep "process name" but failing in doing that. How do I do that?
Thanks, (1 Reply)
Hi,
I check if the process is running or not using the below.
/usr/ucb/ps auxww | grep 109 |grep rmi | awk '{print $2}'
9718
Thus we see 9718 is the PID.
It return blank if the process is not running.
I need to perform some action if the process is not running and leave it if... (8 Replies)
I have process1 running on one machine and generating some log file. Now another process which can be launched on any machine wants to know if process1 is running or not and also in case it is running it wants to stream the logs file generated by process1 on terminal from which process2 is... (2 Replies)
Hi Gurus,
t=`ps -u irb|grep -v grep|grep BSNL_PAYMENT_C`
echo $t
if
then
echo $?
echo "Process Creation is Running ...."
else
echo "Process went down at $dat $tim"
fi
How would i use loop so that the script continously checks for the current status of this process.... (1 Reply)
Discussion started by: ankitknit
1 Replies
LEARN ABOUT SUSE
fvwm-themes-com
FVWM-THEMES-COM(1) Fvwm Utility FVWM-THEMES-COM(1)NAME
fvwm-themes-com - fvwm-themes communication center
SYNOPSIS
fvwm-themes-com [ --help] [ --version] [ --name name ] [ --message message ] [ --lock-and-get ] [ --get-buffer ] [ --clear-buffer ] [
--buffer-name name ] [ --line lineNbr]
DESCRIPTION
This script is not a user script. It is used by Fvwm-Themes for communication between some FvwmScript scripts and some other programs.
Basically, you want to start a programs in the background which support the fvwm-themes-com communication protocol (e.g., fvwm-themes-menu-
app and fvwm-themes-config with the com-mode option can be used as generic examples), then you can use fvwm-themes-com to ask questions or
to give instructions to the background program. The answer are displayed by fvwm-themes-com in the standard out put and can be used by a
FvwmScript script via the GetoutPut instruction. The advantage of using this method is that the background program have to do its main job
only once (e.g., parsing a lot of informations and storing them in some variables) and a script can have very fast answer from the back-
ground program via fvwm-themes-com.
OPTIONS --help - show the help and exit
--version - show the version and exit
--name name - the name of the communication (e.g., if you start fvwm-themes-menuapp with --com-name pid option you must use menuapp-pid as
name to communicate with it). The pipe used for communication are $FVWM_DATADIR/{.tmp-com-in-name,tmp-com-out-name,tmp-com-lock-name}. The
"buffer" file is $FVWM_USERDIR/.tmp-com-buffer-name
--message - A one line message to be sent to the back program.
--lock-and-get - Wait (a certain "time out") for an answer of the message. Then, the answer is displayed on STDOUT.
--line n - n must be an integer n > 0. In the case of a lock and get message, fvwm-themes-com will out put only the nth line of the answer
of the back program on STDOUT and will copy the complete answer in a "buffer" file. If you use the get-buffer option the nth line of the
buffer is out put on STDOUT.
--get-buffer - Out put the buffer file on STDOUT.
--buffer-name othername - Use an alternative name for the buffer file: $FVWM_USERDIR/.tmp-com-buffer-othername. This is usefull if two pro-
grams use the same background program and both use the buffer.
--clear-buffer - remove the buffer file.
USAGE
Here an example:
In the Script FvwmScript-Menus you first start the background program, here fvwm-themes-menuapp, and you set some variables for an easy use
of fvwm-themes-com:
# found the FvwmScript pid
Set $CMD = {perl -e '$t=getppid; print $t . "
"'}
Set $PID = (GetOutput $CMD 1 -1)
# Run fvwm-themes-menuapp until the end of the script
Do {Exec fvwm-themes-menuapp --com-mode --com-name=menuapp-}$PID{ &}
# to send fvwm-themes-com command
Set $SendMsgAndGet = {fvwm-themes-com --name menuapp-}$PID{ --lock-and-get --message=}
Set $SendMsg = {fvwm-themes-com --name menuapp-}$PID{ --message=}
Set $GetLine = {fvwm-themes-com --name menuapp-}$PID{ --get-buffer --line=}
Then in the Script you can ask fvwm-themes-menuapp for some informations:
# Get the menu list
Set $CMD = $SendMsgAndGet{"menu-items }$MENU{"}
Set $ItemsList = (GetOutput $CMD 1 -1)
ChangeTitle 11 $ItemsList
You can also just send an instruction to fvwm-themes-menuapp:
Set $CMD = $SendMsg{"exit"}
Do {Exec }$CMD
Of course your back program have to support the fvwm-themes-com protocol. See fvwm-themes-menuapp and fvwm-themes-config for examples (com-
mode option). See also FvwmScript-Menus and FvwmScript-ThemesCenter.
AUTHORS
Olivier Chapuis <olivier.chapuis@free.fr>, 5 May 2000.
COPYING
The script is distributed by the same terms as fvwm itself. See GNU General Public License for details.
BUGS
Report bugs to fvwm-themes-devel@lists.sourceforge.net
3rd Berkeley Distribution perl v5.6.0 FVWM-THEMES-COM(1)