hi all
How can I make a program start up automatically after the computer restart/startup in fedora?
something like:
... Establish a shell then run some of command code.
Thanks for Help!! (1 Reply)
I need a shell script to kill apache and restart it, in case the number of processes keeps growing. The logic is like the below, but I don't know how to get the number and neither the syntax. Could somebody kindly help?
if no_of_processes (ps ax ¦ grep httpd) > 200
then
killall httpd... (14 Replies)
I'm wondering how I should make a script that can start, stop, and restart another script.
What I need to be able to do, is start and stop a perl script from the command line. The easiest way of doing this seems to be to have another script, starting and stopping the other script. I have BASH,... (7 Replies)
Hi All,
is there a way or script that i can check my AIX 5.3 OS will restart before i made restart? is there a script that can check all the startup files are ok before restarting. it is because i was stuck last time when i restart my PC because some startup files were missing:o. (2 Replies)
Please anyone tell me
In my last interview the HR asks me how to monitor, start,stop & kill the various processes and subprocesses.
Please anyone explain me clearly. It's my personal request (3 Replies)
Is there any functional difference between:
issuing separate stop/start commands like this;
super (handler) (instance) stop
super (handler) (instance) start
versus issuing a single recycle command like this;
super (handler) (instance) restart (3 Replies)
Hi all
I have networker running on a RHEL 5.7 and over time it hangs. So the solution backup team proposed is to check if the process is hung, to stop and start it.
Unfortunately for me, the rc script only allows three commands, start, stop and status (no restart option) so I managed to set... (15 Replies)
Hello,
I'l like to create a script that restart a service (/etc/init.d/httpd restart) and also check if after restart the service is actually running. Sometimes it happen that at the first try the service fails to restart.
Thanks (2 Replies)
Discussion started by: bazzola
2 Replies
LEARN ABOUT SUSE
tcl_detachpids
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
TclTcl_DetachPids(3)