--killing backround Procs spawned from the parent script with Ctrl+C trap
Hello:
Am trying to understand why the method #2 works but method #1 does not.
For both methods, sending CTRL+C should kill both the Parent script & all of the spanwd background procs.
Method #1:
==========================
Method #2:
=========================
So for method #1, the spawned BG Procs have init as the PPID.
so even the "sudo kill -9" does not kill them
for method #2, we are using "kill 0", but this works.
But "kill 0" does not actually kill but :
"If sig is 0, then no signal is sent, but error checking is still performed."
So looks like Method #2 works solely because the whole thing is executed
from the Sub-Shell.
Curiously, the additional commands like "echo $TEST_PARALLEL_1 $TEST_PARALLEL_2"
did not show on the STDOUT.
Just trying to better understand the whole process.
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how to trap the ctrl c in unix shell script
my script is running in while loop it should not be terminate with ctrl c.
if i press ctrl c while running script it shloud ignore the same.
please healp..........
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I am trying to trap CTRL-C, now the program I call has it's own exit message, I think this is the problem ..
This is what I have now :
function dothis
{
echo 'you hit control-c'
exit
}
function settrap
{
trap dothis SIGINT
}
settrap
until false; do
./ITGRecv.exe
doneDoing this I... (2 Replies)
Hello,
I have a script which copies via scp several large files to a remote server. What I want is that even if someone hits CTRL-C, the scp commands continues till the end.
Here is what I wrote
#! /bin/bash
function testFunction
{
echo "COPY START"
scp large.tar.gz... (11 Replies)
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Hi All,
Although each line below seems to work by itself, I've been having trouble getting the Control-C trap working when I add the "|perl -pe..." to the end of the tail -f line, below.
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Hi,
Just wonder if there is a way to identify the PID of the killing process using trap.
Please let me know possible solution.
#!/bin/ksh
hello () {
print "in hello";
print "PID of process issued SIGNAL"; --> this is what i'm looking for.
}
trap hello SIGKILL SIGTERM
while... (3 Replies)
Discussion started by: Gajendra_PH
3 Replies
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defined
DEFINED(3) 1 DEFINED(3)defined - Checks whether a given named constant existsSYNOPSIS
bool defined (string $name)
DESCRIPTION
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