Here is something I had before, which was to ignore control c. How do i unblock a signal? And how is this code? I changed the handler to work with my catcher function now.
Hi all,
I need some urgent help.
we are using Dynix/ptx V4.5 on i386, have several processes and instances are running on the box round the clock.we increased the processes recently.
We have coded to handle the signals in our programs.
Recently, we noticed most of our processes are... (2 Replies)
Hi Gurus,
I am executing my Datastage jobs on UNIX operating System. While running the jobs i am getting the following error:
main_program: Unexpected termination by Unix signal 9(SIGKILL)
Can any one please let me know what are the possible situations where this SIGKILL will arrise?
... (9 Replies)
Hiiii..... Every one......
I am using /etc/issue file to display Pre-login Message
on my system, installed with SOLARIS-9.
I am getting this Message in White fonts having Black
background ( Colour of the Screen).....
So, is there ... (2 Replies)
Hi all
Geting this error while trying to print message as :
./logfunc: print: bad file unit number
heres what i m trying to do :
log_date="$(date '+%d/%m/%Y %H:%M:%S')"
log_type="Message"
print "${log_date}: ${log_type}"
print -u3 "${log_date}: ${log_type}"
this error is due to... (3 Replies)
Hi Friends,
I am using HP-UNIX(ksh). I want to print a message at specific line on the prompt screen. For Example:
for num in 1 10 3 145
do
echo $num // need to print this on the same line for each number
sleep 2
done
Actual Output:
==========
1
10
3
145
Expected Output:... (5 Replies)
Dear All,
I have machine with SunOS 5.10 Generic_138888-01 sun4v sparc SUNW,SPARC-Enterprise-T5120. Yesterday there is something at dmesg command :
May 25 18:09:02 cacao_launcher: Timeout occured on heartbeat channel, cleanup engaged
May 25 18:09:07 cacao_launcher: watchdog : warning,... (0 Replies)
Dear All
We have JBOSS server running on Linux we need to track Graceful Shutdown(SIGTERM) and Forceful Shutdown(SIGKILL) timestamp and write it into one file, I am new to UNIX Signal processing if is it possible how to detect it?
We generally do
$kill PID For Graceful... (5 Replies)
Which is sent to a terminal when it closes? SIGKILL? Reason I ask is I have a script I want to run in the background, but want it to run even if the terminal window is closed. Or, I'd like it to background itself if the terminal is closed but not if its running in an open window. I will learn how... (5 Replies)
I want to connect to oracle database from solaris...
After that i will drop and create a no.of tables.One of the table example is as below.
sqlplus -s usrname/password@dbname << SQL >> $logfile 2>&1
echo " dropping the table1" | tee logfile
DROP TABLE Table1
echo "creating the table1" |... (1 Reply)
Hi,
I am new to shell scripting and got a task to complete.
Task is : we have a log file where in i need to traverse through the whole file to check the string "Person Type missing in message" and after that i need to get EMPLID=xxxxxx from the file and print details in a different file.
... (1 Reply)
Discussion started by: suren424
1 Replies
LEARN ABOUT ULTRIX
fork
fork(2) System Calls Manual fork(2)Name
fork - create a new process
Syntax
#include <sys/types.h>
#include <unistd.h>
pid = fork()
pid_t pid;
Description
The system call causes creation of a new process. The new process (child process) is an exact copy of the calling process except for the
following:
o The child process has a unique process ID.
o The child process has a different parent process ID (that is, the process ID of the parent process).
o The child process has its own copy of the parent's descriptors. These descriptors reference the same underlying objects, so that, for
instance, file pointers in file objects are shared between the child and the parent, so that a on a descriptor in the child process
can affect a subsequent read or write by the parent. This descriptor copying is also used by the shell to establish standard input
and output for newly created processes as well as to set up pipes.
o The child processes resource utilizations are set to 0. For further information, see
Return Values
Upon successful completion, returns a value of 0 to the child process and returns the process ID of the child process to the parent
process. Otherwise, a value of -1 is returned to the parent process, no child process is created, and the global variable errno is set to
indicate the error.
Diagnostics
The system call fails and no child process are created under the following conditions:
[EAGAIN] The system-imposed limit {PROC_MAX} on the total number of processes under execution would be exceeded.
[EAGAIN] The system-imposed limit {CHILD_MAX} on the total number of processes under execution by a single user would be exceeded.
[ENOMEM] There is insufficient swap space for the new process.
See Alsoexecve(2), wait(2)fork(2)