I have written a shell script which will invoke perl script infinitly in the background in a loop. Code will do as:Within while loop, perl script will be run in background, get the pid and notify pid in though mail. then wait for pid to be completed before going for next iteration. I am running the shell in background itself.
while [1] do
- invoke perl script in background
- get pid and mial
- wait for pid
- sent mail about job finining
- sleep for some time
done.
Exact Code:
If run the shell in background then current shell is logging out but shell script and perl scripts are still running in background. Do you see any problem with code? Also I set the 'set +o errexit'. Why the script will exit suddenly? What are the other possible reasons?
Here is the OS info:
Please help what I need to check? it very urgent. I am very new to linux env.
Hi,
I have been trying to do a small fun project for myself.
I want to run a command for 45 seconds.
And to get the final output of this command, the script requires I push the "q" key on my keyboard and then the final output file becomes available.
I tried the following script. But it... (12 Replies)
I want to detect key pressed in my .cgi web page, but it does not work even I found the code in other web site.
My code is :
#!/bin/sh
#=================================================
# PATH defination
# ================================================... (2 Replies)
hi to all.
im a newbie in unix shell scripts. i want to make a simple unix shell script using the bash shell that asks a user to press any key after a series of commands, or an x if he wishes to exit. here's a sample script that i made:
#!/usr/bin/bash
pause(){
/usr/bin/echo "\t\t Press... (3 Replies)
I am using C Shell MKS Toolkit and I ran into a huge problem when setting up some environment variables.:confused:
The csh script that I have as my login script runs fine but very very slow.
When I add a directory to my PATH it seems to slow down shell startup and even slow down the commands. ... (0 Replies)
Hello!
Sorry, for my not so perfect english!
I want to stop bash shell script execution until any key is pressed.
This line in a bash shell script
read -n1 -r -p "Press any key to continue..." key
produces this error
When I run this from the command line
usera@lynx:~$ read... (4 Replies)
How can I trap a character press in the shell script.
For eg:- I have a script runinng a infinite loops , I will need to quit if q is pressed.
I have seen the traping the signal , but they give option only for traping the defined interrupt signals. But those does not help me here. (3 Replies)
I am trying to test input from the user, if they press enter with out an Y or N. I have the characheter thing sorted but when it comes to a blank or empty key press I am having trouble.
if ; then
clear
echo "Sorry, that is an invalid choice!"
exit
fi
I am using a KSH script in... (3 Replies)
I would really like to have a script that will accept the key press from the user with out having to press the enter key afterwards.
i.e.
echo "Press Y to print \c"
read YesNo
At this point the user has to press the enter key to continue. Is there a way to accept the key press from the... (3 Replies)