My ksh version is ksh93-
I have a simple script which is as below -
I am Executing the script From Terminal 1 - 1. The ksh is started from /bin/ksh as below :
2. The script is executed from this ksh-
and Sending a "SIGTERM" From Terminal 2 -
I can see that my test_sigterm.sh is getting killed on receiving the "SIGTERM" in either case, when run in background (&) and foreground. But the ksh man pages say - Signals. The INT and QUIT signals for an invoked command are ignored if the command is followed by & and the monitor option is not active. Otherwise, signals have the values inherited by the shell from its parent (but see also the trap built-in command below).
Is it a know or default behaviour of ksh to NOT IGNORE SIGTERM? or is an issue with ksh child SIGTERM signal handling?
Last edited by pludi; 06-27-2013 at 09:45 AM..
Reason: Code part not
This is not the same as a few of the other posted items dealing with sub-process pids (that I saw anyway).
If zot contains:
echo "main mypid: $$ - lastpid: $!"
(
echo "block mypid: $$ - lastpid: $! - ppid: $PPID"
ps -ef > xxx
sleep 5
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Discussion started by: Ghanshyam Ratho
4 Replies
LEARN ABOUT PHP
let
let(1) User Commands let(1)NAME
let - shell built-in function to evaluate one or more arithmetic expressions
SYNOPSIS
ksh
let arg...
DESCRIPTION
ksh
Each arg is a separate "arithmetic expression" to be evaluated.
EXIT STATUS
The following exit values are returned:
0 The value of the last expression is non-zero.
1 The value of the last expression is zero.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO ksh(1), set(1), typeset(1), attributes(5)SunOS 5.10 15 Apr 1994 let(1)