How to check since when (for how long) a particular process is running ?

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Check status of long running multiple curl commands in shell script

I am working on script. it reads a file which contains multiple lines Ex; curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=1 curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=2 curl --write-out %{http_code} --silent ...

2. Shell Programming and Scripting

Killing the process if running for long time in script

I am running a script which will read the data from fail line by line and call the Java program by providing the arguments from the each line. The Java code is working fast for few records and for some records its getting hanged not providing response for morethan one hour. Currently am...

3. AIX

Need to check long running processes on the database server and the os is AIX

Hello, Please help me with a script with which I can check long running processes on the database server and the os is AIX. Best regards, Vishal

4. Shell Programming and Scripting

Check for long running process on AIX

I want to write a shellscript which determines if a particular process is long running than my specified threshold time. Eg: My process name is "prsd" and is expected to run for 15 mins and completes. If I set a threshold limit of 1 hour, and how we can the get output of the long running...

5. UNIX for Dummies Questions & Answers

How a process can check if a particular process is running on different machine?

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...

6. Shell Programming and Scripting

need to check if the process is running

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...

7. Shell Programming and Scripting

Monitor a long running process

Gurus, I am writing a shell script that will be used to automate cold backup of an Oracle Database. The database size is around 300G and will take around 5-6 hours to copy. I have finished the script till the copy of the datafiles. Now, I am stuck at the point where I need to monitor the...

8. Shell Programming and Scripting

Check if Process is running

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...

9. UNIX for Advanced & Expert Users

how to check how long the process has been running.

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...

LEARN ABOUT SUSE

tcl_waitpid

Tcl_DetachPids(3)					      Tcl Library Procedures						 Tcl_DetachPids(3)

__________________________________________________________________________________________________________________________________________________

NAME

       Tcl_DetachPids, Tcl_ReapDetachedProcs, Tcl_WaitPid - manage child processes in background

SYNOPSIS

       #include <tcl.h>

       Tcl_DetachPids(numPids, pidPtr)

       Tcl_ReapDetachedProcs()

       Tcl_Pid
       Tcl_WaitPid(pid, statusPtr, options)

ARGUMENTS

       int numPids (in) 		Number of process ids contained in the array pointed to by pidPtr.

       int *pidPtr (in) 		Address of array containing numPids process ids.

       Tcl_Pid pid (in) 		The id of the process (pipe) to wait for.

       int *statusPtr (out)		The result of waiting on a process (pipe). Either 0 or ECHILD.

       int options (in) 		The options controlling the wait. WNOHANG specifies not to wait when checking the process.
_________________________________________________________________

DESCRIPTION

       Tcl_DetachPids  and  Tcl_ReapDetachedProcs  provide a mechanism for managing subprocesses that are running in background.  These procedures
       are needed because the parent of a process must eventually invoke the waitpid kernel call (or one of a few other similar kernel	calls)	to
       wait  for  the  child to exit.  Until the parent waits for the child, the child's state cannot be completely reclaimed by the system.  If a
       parent continually creates children and doesn't wait on them, the system's process table will eventually overflow, even if all the children
       have exited.

       Tcl_DetachPids  may  be	called	to  ask Tcl to take responsibility for one or more processes whose process ids are contained in the pidPtr
       array passed as argument.  The caller presumably has started these processes running in background and does not want to have to	deal  with
       them again.

       Tcl_ReapDetachedProcs  invokes  the  waitpid  kernel call on each of the background processes so that its state can be cleaned up if it has
       exited.	If the process has not exited yet, Tcl_ReapDetachedProcs does not wait for it to exit;	it will check again the next  time  it	is
       invoked.   Tcl  automatically  calls Tcl_ReapDetachedProcs each time the exec command is executed, so in most cases it is not necessary for
       any code outside of Tcl to invoke Tcl_ReapDetachedProcs.  However, if you call Tcl_DetachPids in situations  where  the	exec  command  may
       never get executed, you may wish to call Tcl_ReapDetachedProcs from time to time so that background processes can be cleaned up.

       Tcl_WaitPid is a thin wrapper around the facilities provided by the operating system to wait on the end of a spawned process and to check a
       whether spawned process is still running. It is used by Tcl_ReapDetachedProcs and the channel system to portably access the operating  sys-
       tem.

KEYWORDS

       background, child, detach, process, wait

Tcl																 Tcl_DetachPids(3)

UNIX for Advanced & Expert Users