12-26-2012
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
I have a script which calls a child script with a parameter to be run in the background
. childscript.ksh $a &
Can any one suggest me how do i export a variable from the child script to parent script?
Note that the child script is in background
If the child script is in... (3 Replies)
Discussion started by: aixjadoo
3 Replies
2. Shell Programming and Scripting
Hi
I have a script, which i ran in background, can someone please help in stopping this.
i gave this command:
ksh abc.ksh &
this script sends me a mail every 30 seconds. i have deleted the script but still i am getting the mails. can some one please help me stopping dese.
... (3 Replies)
Discussion started by: Prateek007
3 Replies
3. UNIX for Advanced & Expert Users
Hi guys, I have a issue with a background process, I need to update the value of a variable in that process which is running at this time and it will be running for at least 2 days.
Any idea?
I will apreciate your help. regards.
Razziel. (2 Replies)
Discussion started by: razziel
2 Replies
4. UNIX for Dummies Questions & Answers
Gurus,
Pls. help on this to run the script in background.
I have a script to run the informatica workflows using PMCMD in script.
Say the script name is test.sh & Parameters to the script is Y Y Y Y
The no of parameters to the bove script is 4. all are going to be a flags. Each flag will... (2 Replies)
Discussion started by: prabhutkl
2 Replies
5. UNIX for Advanced & Expert Users
When I run the following snippet in background
#!/bin/ksh
while
do
echo "$i"
sleep 10
i=`expr $i + 1`
done
My job got stopped and it says like + Stopped (SIGTTOU) ex1 &
I did "stty tostop" as suggested in many of the post but still not working... (3 Replies)
Discussion started by: shahnazurs
3 Replies
6. Shell Programming and Scripting
I am trying to use send and receive using expect. the expect_out(buffer) is working fine while it is running it as foreground. But the same script when it is ran as background, the expect_out(buffer) errored out.
Is there any factor influence when we run script in foreground and in background? ... (0 Replies)
Discussion started by: shellscripter
0 Replies
7. Shell Programming and Scripting
I have a script called startWebLogic.sh which I was running in the background but the problem is which I used the command :- ps -elf | grep "startWebLogic.sh" | grep -v grep to find the process id but I was unable to find the process id for this script and when I checked from the front end the... (3 Replies)
Discussion started by: maitree
3 Replies
8. Shell Programming and Scripting
i have a script inside which i have generated a background job which will run another script.
How do i export the variables from parent script to the child script which wil run in the background .
a.sh:-
export tmpdir="/usr/tmp"
nohup b.sh&
b.sh:-
echo $tmpdir
But... (1 Reply)
Discussion started by: millan
1 Replies
9. Shell Programming and Scripting
Hi,
I wrote a KSH script and running it on HP-UX machine
I am running one script in background.
My script is at location
$HOME/myScript/test/background_sh
When I view my script in background with psu commend
> psu | grep background_sh
I see following output
UID PID PPID C ... (1 Reply)
Discussion started by: vaibhav
1 Replies
10. Shell Programming and Scripting
Hi Team,
i am executing 3 scripts in background from 1 script and i want to send a message once the script gets completed.these scripts usually takes 1 hr to complete.
My sample script is below,
Vi abc.sh
sh /opt/data/Split_1.sh &
sh /opt/data/Split_2.sh &
sh /opt/data/Split_3.sh &
... (3 Replies)
Discussion started by: raju2016
3 Replies
FORK(2) System Calls Manual FORK(2)
NAME
fork - create a new process
SYNOPSIS
pid = fork()
int pid;
DESCRIPTION
Fork causes creation of a new process. The new process (child process) is an exact copy of the calling process except for the following:
The child process has a unique process ID.
The child process has a different parent process ID (i.e., the process ID of the parent process).
The child process has its own copy of the parent's descriptors. These descriptors reference the same underlying objects, so that, for
instance, file pointers in file objects are shared between the child and the parent, so that an lseek(2) on a descriptor in the child
process can affect a subsequent read or write by the parent. This descriptor copying is also used by the shell to establish standard
input and output for newly created processes as well as to set up pipes.
The child processes resource utilizations are set to 0; see setrlimit(2).
RETURN VALUE
Upon successful completion, fork returns a value of 0 to the child process and returns the process ID of the child process to the parent
process. Otherwise, a value of -1 is returned to the parent process, no child process is created, and the global variable errno is set to
indicate the error.
ERRORS
Fork will fail and no child process will be created if one or more of the following are true:
[EAGAIN] The system-imposed limit on the total number of processes under execution would be exceeded. This limit is configuration-
dependent.
[EAGAIN] The system-imposed limit MAXUPRC (<sys/param.h>) on the total number of processes under execution by a single user would be
exceeded.
[ENOMEM] There is insufficient swap space for the new process.
SEE ALSO
execve(2), wait(2)
3rd Berkeley Distribution May 22, 1986 FORK(2)