04-10-2009
you may want to take care of situations such as if someone is editing the same file in an editor, say using vi
10 More Discussions You Might Find Interesting
1. Programming
I am trying to find out that how many number of threads are currently running or in any other state which is created by POSIX standard in a process.
First I have defined a variable called proc_var of type proc defined in sys/proc.h.Next I open up the dir /proc and per directory wise I do an ioctl... (7 Replies)
Discussion started by: S.P.Prasad
7 Replies
2. Shell Programming and Scripting
how i know number of process are currently run on my user area (2 Replies)
Discussion started by: piyush_movadiya
2 Replies
3. UNIX for Advanced & Expert Users
Hi,
under AIX 5.2 which (environment) parameter defins the number of processes for the server ?
Many thanks. (2 Replies)
Discussion started by: big123456
2 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I am on a Sun Solaris and I want to find out which process is allocated on a certain port. How can I do that?
BR
Andreas (4 Replies)
Discussion started by: mr_andrew
4 Replies
5. Solaris
Hi All,
Do we have any option through which we can limit the number of process which can be started by single user session.
Thanks (3 Replies)
Discussion started by: kumarmani
3 Replies
6. Shell Programming and Scripting
Hi Experts, we do have a shell script for Unix Solaris, which will kill all the process manullay, it used to work in my previous env, but now it is throwing this error.. could some one please help me to resolve it
This is how we execute the script (and this is the requirement) ... (2 Replies)
Discussion started by: jonnyvic
2 Replies
7. Shell Programming and Scripting
Hi
I want to write a shell script which can find the process id's of all the process and kill them eg:
ps ax | grep rv_
3015 ? S 0:00 /home/vivek/Desktop/rv_server
3020 ? S 0:00 /home/vivek/Desktop/rv_gps
3022 ? S 0:00 /home/vivek/Desktop/rv_show
... (7 Replies)
Discussion started by: vivek_naragund
7 Replies
8. Solaris
Hi All,
How to get the list of port numbers and it is correspoding proceses id that are currently running on. Please suggest and it is urgent
Thanks. (7 Replies)
Discussion started by: rbalaj16
7 Replies
9. Shell Programming and Scripting
Hello,
I am newbie to bash scripting. Could someone help me with the following.
I have log file with output as shown below
**************************LOG*************************
11/20/2013 9:11:23.64 Pinging xx.xx.xx.xx with 32 bytes of data:
11/20/2013 9:11:23.64 Reply from xx.xx.xx.xx:... (4 Replies)
Discussion started by: meena_2013
4 Replies
10. Shell Programming and Scripting
Hello Team,
I would like to use a shell script that run each 15 minutes in order to recorder the number of process per user
I request your help in order to build an awk script under Solaris from the following command or similar:
ps -fea -o user | sort | uniq -c | sort -k 2
648 ... (3 Replies)
Discussion started by: csierra
3 Replies
SHLOCK(1) InterNetNews Documentation SHLOCK(1)
NAME
shlock - Create lock files for use in shell scripts
SYNOPSIS
shlock [-b|-c|-u] -f name -p pid
DESCRIPTION
shlock tries to create a lock file named name and write the process ID pid into it. If the file already exists, shlock will read the
process ID from the file and test to see whether the process is currently running. If the process exists, then the file will not be
created. shlock exits with a zero status if it could create the lock file, or non-zero if the file refers to a currently active process.
OPTIONS
-b Process IDs are normally read and written in ASCII. If the -b flag is used, then they will be written as a binary int.
-c If the -c flag is used, then shlock will not create a lock file, but will instead use the file to see if the lock is held by another
program. If the lock is valid, the program will exit with a non-zero status; if the lock is not valid (i.e. invoking shlock without
the flag would have succeeded), then the program will exit with a zero status.
-f name
name is the name of the lock file shlock attempts to create. If the file already exists, it will read the process ID from the file and
exit with a non-zero status if this process is currently active.
-p pid
pid is the process ID to write into the file name.
-u For compatibility with other systems, the -u flag is accepted as a synonym for -b since binary locks are used by many UUCP packages.
EXAMPLES
The following example shows how shlock would be used within a shell script:
LOCK=<pathrun in inn.conf>/LOCK.send
trap 'rm -f ${LOCK} ; exit 1' 1 2 3 15
if shlock -p $$ -f ${LOCK} ; then
# Do appropriate work.
else
echo "Locked by `cat ${LOCK}`"
fi
HISTORY
Written by Rich $alz <rsalz@uunet.uu.net> for InterNetNews after a description of HDB UUCP locking given by Peter Honeyman, and improved by
Berend Reitsma to solve a race condition. Converted to POD by Julien Elie.
$Id: shlock.pod 8357 2009-02-27 17:56:00Z iulius $
INN 2.5.2 2009-05-21 SHLOCK(1)