04-19-2010
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
I have a written a script in korn shell for importing data into a oracle database. The shell invokes the import within the script. I want to kill this import (child process) . I tries using trap, but this does not kill the import even if i press cnt c. i have to login into other terminal... (2 Replies)
Discussion started by: yerics
2 Replies
2. Programming
Hi,
When i m trying to run below code,its entering into wait stage.
output: In parent
pid=2134 // some random value assigned to child process
parent waiting.....
and then it keeps on waiting for child to get terminate
Y this child is not getting... (5 Replies)
Discussion started by: Crab
5 Replies
3. Shell Programming and Scripting
I am calling another script from my main script and making it run in the background,based upon the value of the input provided by the user I want to kill the child process ,I have written this code
timer.ksh &
PID=$$
print "\n Do you wish to continue .. (Y/N) : \c "
read kill_proc
if ]... (4 Replies)
Discussion started by: mervin2006
4 Replies
4. Shell Programming and Scripting
I have a script that (ideally) starts tcpdump, sleeps a given number of seconds, then kills it.
When I do this for 10 seconds or and hour, it works fine. When I try it for 10 hours (the length I actually want) it just doesn't die, and will actually stick around for days.
Relevant part of my... (1 Reply)
Discussion started by: upnix
1 Replies
5. UNIX for Advanced & Expert Users
Hi all,
I am writing a script which calls other third party scripts that perform numerous actions. I have no control over these scripts.
My problem is, one of these scripts seems to execute and do what it is meant to do, but my calling / parent script always exits at that point. I need to... (4 Replies)
Discussion started by: mark007
4 Replies
6. Shell Programming and Scripting
Hi All,
I have two ksh script. 1st script calls the 2nd script and the second script calls an 'C' program.
I want 1st script to wait until the 'C' program completes.
I cant able to get the process id for the 'C' program (child process) to make the 1st script to wait for the second... (7 Replies)
Discussion started by: sennidurai
7 Replies
7. Shell Programming and Scripting
Hey all, I need to launch a script from within 2 other scripts that can run independently of the two parent scripts... Im having a hard time doing this, if anyone knows how please let me know.
More detail.
ScriptA (bash), ScriptB (ksh), ScriptC (bash)
ScriptA, launches ScriptB
ScirptB,... (7 Replies)
Discussion started by: trey85stang
7 Replies
8. Emergency UNIX and Linux Support
Hello, everyone.
Here's a program:
pid_t pid = fork();
if (0 == pid) // child process
{
execvp ...;
}
I send a signal (such as SIGINT) to the parent process, the child process receive the signal as well as the parent process.
However I don't want to child process to receive the... (7 Replies)
Discussion started by: jackliang
7 Replies
9. Shell Programming and Scripting
Hi everyone
i am very new to linux , working on bash shell.
I am trying to solve the given problem
1. Create a process and then create children using fork
2. Check the Status of the application for successful running.
3. Kill all the process(threads) except parent and first child... (2 Replies)
Discussion started by: vizz_k
2 Replies
10. Solaris
Hello,
A little background on what we are doing first. We are running several applications from a CLI, and not all of them are fully functional. They do on occasion core dump, not a problem. We are running a service that takes a screen scrape of those apps and displays them in a more user... (5 Replies)
Discussion started by: Bryan.Eidson
5 Replies
UUIDD(8) System Administration UUIDD(8)
NAME
uuidd - UUID generation daemon
SYNOPSIS
uuidd [options]
DESCRIPTION
The uuidd daemon is used by the UUID library to generate universally unique identifiers (UUIDs), especially time-based UUIDs, in a secure
and guaranteed-unique fashion, even in the face of large numbers of threads running on different CPUs trying to grab UUIDs.
OPTIONS
-d, --debug
Run uuidd in debugging mode. This prevents uuidd from running as a daemon.
-h, --help
Display help screen and exit.
-k, --kill
If currently a uuidd daemon is running, kill it.
-n, --uuids number
When issuing a test request to a running uuidd, request a bulk response of number UUIDs.
-p, --pid path
Specify the pathname where the pid file should be written. By default, the pid file is written to /var/uuidd/uuidd.pid.
-P, --no-pid
Do not create pid file.
-F, --no-fork
Do not daemonize using double-fork.
-S, --socket-activation
Do not create the socket and instead expect it to be provided by the calling process. Implies --no-fork and --no-pid. As of this
writing, this option is supposed to be used only with systemd. This option must be enabled with a configure option.
-q, --quiet
Suppress some failure messages.
-r, --random
Test uuidd by trying to connect to a running uuidd daemon and request it to return a random-based UUID.
-s, --socket path
Specify the pathname used for the unix-domain socket used by uuidd. By default, the pathname used is /var/uuidd/request. This is
primarily for debugging purposes, since the pathname is hard-coded in the libuuid library.
-T, --timeout timeout
Specify a timeout for uuidd. If specified, then uuidd will exit after timeout seconds of inactivity.
-t, --time
Test uuidd by trying to connect to a running uuidd daemon and request it to return a time-based UUID.
-V, --version
Output version information and exit.
EXAMPLE
Start up a daemon, print 42 random keys, and then stop the daemon.
uuidd -p /tmp/uuidd.pid -s /tmp/uuidd.socket
uuidd -d -r -n 42 -s /tmp/uuidd.socket
uuidd -d -k -s /tmp/uuidd.socket
AUTHOR
The uuidd daemon was written by Theodore Ts'o <tytso@mit.edu>.
AVAILABILITY
The uuidd daemon is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
SEE ALSO
uuid(3), uuidgen(1)
util-linux June 2011 UUIDD(8)