You mean the shell script eventually hangs, because it runs an I/O command that eventually hangs?
Then, in the shell script, define a timeout function like this:
and run the critical I/O commands like this example
The call to perl is needed to install an alarm signal handler.
#!/bin/csh
# This program will add integers
#
#
# add integer1 ..
#
# Check for argument
if ($#argv == 0 ) then
echo "usage: add integers"
exit 1
else
set input = $argv
endif
#
set sum = 0
foreach var ( $input )
@sum = $sum + $input
end
# (1 Reply)
Sorry for all the threads. I am almost done. I ahve a bash script that is launching a diags program then copying the .html over my client. then it does the following line
/opt/firefox/firefox report.html
it launches it fines but the program waits for me to close the window or kill the script.... (2 Replies)
Hi,
Could anybody please let me know how to call a C_Program
from shell script. I know through command "system" we can call
shell script from C program.
Awaiting response.
Thanks and regards,
Chanakya M (4 Replies)
Hi,
If I have a large shell script running as root, say for example like one that copies a ton of files, how would I kill the shell script and any processes that it created?
Thanks (7 Replies)
Hi there, im new too shell scripting and was wondering if it is possible to create a shell script to take in a variable and load a c program.
My C program is a file monitor, and is started by using the terminal and using to following code
./monitor FileToBeMonitored
is it possible to have... (12 Replies)
Hi,
I am trying to automate the killing of named processes of which I found a good solution here on the forums but as I am pretty much a begginer to linux I am having an issue. The code I found is:
kill $(ps -ef | nawk '/monitoreo start/ { print $2}'}
but what I want to do is replace... (3 Replies)
shell script in Unix/Linux to find the lines numbers of a text file are having word which is 5 to 10 characters long and having first letter as a capital letter. (3 Replies)
Hi I am new in programming.
I have written a shell code, but i want to secure my code.
I have tried SHC. It is converting it to binary, but can be converted in plain text again by core dump.
I have tried to convert it in rpm by "rpmbuild -bb my.spec" option but the result is same.
... (4 Replies)
Hi all,
I am trying to write a shell script that starts a program, reads from its stdout and can write to its stdin.
I'm having trouble to get it to work, I tried using named pipes, and using exec and file descriptors.
Just couldn't get it to work, so I thought I'll post it here to see if... (4 Replies)
Discussion started by: test it
4 Replies
LEARN ABOUT MOJAVE
alarm
ALARM(3) BSD Library Functions Manual ALARM(3)NAME
alarm -- set signal timer alarm
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
unsigned
alarm(unsigned seconds);
DESCRIPTION
This interface is made obsolete by setitimer(2).
The alarm() function sets a timer to deliver the signal SIGALRM to the calling process after the specified number of seconds. If an alarm
has already been set with alarm() but has not been delivered, another call to alarm() will supersede the prior call. The request alarm(0)
voids the current alarm and the signal SIGALRM will not be delivered.
Due to setitimer(2) restriction the maximum number of seconds allowed is 100000000.
RETURN VALUES
The return value of alarm() is the amount of time left on the timer from a previous call to alarm(). If no alarm is currently set, the
return value is 0.
SEE ALSO setitimer(2), sigaction(2), sigpause(2), sigvec(2), signal(3), sleep(3), ualarm(3), usleep(3)HISTORY
An alarm() function appeared in Version 7 AT&T UNIX.
BSD April 19, 1994 BSD