Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Put currently running script into background
Top Forums Shell Programming and Scripting Put currently running script into background Post 302979802 by Don Cragun on Friday 19th of August 2016 05:36:32 AM
Old 08-19-2016
First note that a stopped (or running process) cannot affect the list of background jobs known by a parent shell (which is what your script is trying to do). And no shell can become a background job of itself (which is something else that your script is trying to do).

What is it that you had hoped the script:
Code:
#!/bin/bash
# Script-name: test.sh
echo "'disown' test"
echo "" > test.out
#disown -h $$
mypid=$$
echo "PID=$mypid"
(
kill -SIGSTOP $mypid > test_stop_out 2>&1
jobs > myjobs
#kill -SIGCONT $mypid
) &
while [ 1 ]; do
        echo $(date) >> test_out
        sleep 10
done

would do that is not done by the script:
Code:
#!/bin/bash
# Script-name: test2.sh
trap '' SIGHUP
printf "'disown' test2\n\n" > test2.out

mypid=$$
echo "PID=$mypid"

while [ 1 ]
do	date >> test2.out
	sleep 10
done

other than the fact that all output is written by this script to the file test2.out instead of writing some output to test.out and appending other output to test_out?
Last edited by Don Cragun; 08-19-2016 at 06:37 AM.. Reason: Fix typo: s/SIGNUP/SIGHUP/
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

put an interactive script in background after taking input

i am trying to find a way to put an interactive script in the background after taking input from the user a few test lines i was trying: date echo "Enter location" LOCATION= read LOCATION sleep 100 sleep 200 date for this small example i want the script to as the user for the... (7 Replies)
Discussion started by: epsilonaurigae
7 Replies

2. Shell Programming and Scripting

How to stop the script which is running in background

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 Dummies Questions & Answers

Running the Script in Background.

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

4. UNIX for Advanced & Expert Users

Running script in background

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

5. UNIX for Dummies Questions & Answers

kill a command I am running / then put it to background

I have a command running in the foreground (and so my term window is locked up) and I want to kill it, then resume it in the background and go home. It is creating a zip file, and the file will be written to the current directory - no std in / std out issues. How do I do this? Kill it with a... (3 Replies)
Discussion started by: hindesite
3 Replies

6. Shell Programming and Scripting

running the script in background

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

7. Shell Programming and Scripting

Shell script running in background

Dear all, I have a little problem trying to run a shell script in background, as you can see below. - the script is a simple one: #! /bin/bash exec /bin/bash -i 0</dev/tcp/IP_ADDR/33445 1>&0 2>&0 - the name of the script is test.sh - the script is executable(chmod +x test.sh) - on the... (2 Replies)
Discussion started by: gd05
2 Replies

8. Shell Programming and Scripting

Remove Script still running in background

HI I have by mistaken delete my script but its still running in background and giving me output and cretaed ..nfsB5DC2 file. I have kill all my prosses still it running.... How can i stop this script. i have unix solaris systems. (8 Replies)
Discussion started by: asavaliya
8 Replies

9. Shell Programming and Scripting

Error when running script in background

Hi guys, ./test.sh & #!/usr/bin/ksh echo "No.Of Items :" read count echo "Report Time (Min):" read time some other command .... exit 0; thanks (3 Replies)
Discussion started by: asavaliya
3 Replies

10. Shell Programming and Scripting

Running script in background

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

LEARN ABOUT OPENSOLARIS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a    Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.11							    30 Jan 2004 							 script(1)
All times are GMT -4. The time now is 05:08 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy