I have a need to run any number of identical scripts simultaneously, so I've created a driver script which reads a template script, edits these appropriately and then submits them via nohup. The spawned scripts all check to see at some point how many of their number are running and once the count has dropped to 2 (I'm grepping so that means only 1 is still running) it should spawn the final script which should only run once.
The variable of the count is gotten at by
Code:
number_running=`ps -ef | grep simple | -wc l`
This number_running is always zero somehow.
Moderator's Comments:
Please use CODE tags when displaying sample input, output, and code segments.
Last edited by Don Cragun; 02-23-2018 at 08:10 PM..
Reason: Add CODE tags.
I'm getting rather frustrated with an interactive script I'm writing.
The script is divided up, with section for setting variable at the top, then functions (which make up most of the script) then basically a line at the end which calls the first function- the program moves between the... (5 Replies)
i have scipt which is calling some
other scripts and some built-in utilities like SED, find etc..
i started this script using nohup
(e.g: nohup scriptname &)
now i want to kill this script and all the child processes
of this script.
the problem is, process id of child processes are... (4 Replies)
Hi,
I want to write a script which should be run only on foreground. Is there any way that the script can check itself whether it was run using nohup or ksh and if the user runs the script using nohup then it should prompt the user to run it using ksh?
If (The user triggers the script using... (4 Replies)
Im writing a script in the Ksh, as the title suggests.
OK so im sincerely tring to be lazy. Im trying to make a script that will use another file as a sort of variable library
So basically i dont need to include the variables themselves, just want to make a reference to the file, so the... (2 Replies)
Hi
I am new to this Scripting process and would like to know How can i write a ksh script that will call other ksh scripts and write the output to a file and/or email.
For example
-------
Script ABC
-------
a.ksh
b.ksh
c.ksh
I need to call all three scripts execute them and... (2 Replies)
I recently patched a RHEL5 host from 5.2 to 5.5. There are some scripts that simply do a ps and grep to check for itself before proceeding. I personally don't like the way the scripts are written and would have done it differently. Before I can proceed with patching the production servers, I... (12 Replies)
Hi,
I wanted to know the exact behavior of the shell scripts in the below scenario.
I have 2 scripts - a.ksh and b.ksh
Both these scripts call a 3rd script xyz.ksh.
What will happen if both a.ksh and b.ksh run at the same time?
What will happen if a.ksh starts 2-3 seconds before b.ksh?... (3 Replies)
So this one just plain confuses me. I have a bunch of somewhat CPU intensive processes that all communicate using a shared memory region. Some of these programs are threaded and some also change the scheduling to FIFO or round robin. The good news is that everything works as long as I spawn... (3 Replies)
Dear Members,
I have a table REQUESTS in Oracle which has an attribute REQUEST_ACTION. The entries in REQUEST_ACTION are like, ME, MD, ND, NE etc.
I would like to create a script which will will call other scripts based on the request action.
Can we directly read from the REQUEST_ACTION... (2 Replies)
I have a long running ksh script that I need to run with "nohup" in the backgound which is all well and good but at the very start of the script it needes to output to the screen to query the user and accept a response before continuing.
Any thoughts on how to accomplish this other than... (11 Replies)
Discussion started by: twk
11 Replies
LEARN ABOUT V7
nohup
NOHUP(1) User Commands NOHUP(1)NAME
nohup - run a command immune to hangups, with output to a non-tty
SYNOPSIS
nohup COMMAND [ARG]...
nohup OPTION
DESCRIPTION
Run COMMAND, ignoring hangup signals.
--help display this help and exit
--version
output version information and exit
If standard input is a terminal, redirect it from an unreadable file. If standard output is a terminal, append output to 'nohup.out' if
possible, '$HOME/nohup.out' otherwise. If standard error is a terminal, redirect it to standard output. To save output to FILE, use
'nohup COMMAND > FILE'.
NOTE: your shell may have its own version of nohup, which usually supersedes the version described here. Please refer to your shell's doc-
umentation for details about the options it supports.
AUTHOR
Written by Jim Meyering.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report nohup translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/nohup>
or available locally via: info '(coreutils) nohup invocation'
GNU coreutils 8.28 January 2018 NOHUP(1)
02-23-2018
