05-05-2009
Hi
Currently I am using this:
Fct1()
{
touch /tmp/lock$$
...
rm /tmp/lock$$
}
Fct2()
{
while [ -f /tmp/lock$$ ]
do
sleep 30
done
...
}
Is there a better way to synchronize? (I still need to test the above solution )
thank you.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have 4 scripts I need to run sequentially(can't run simultaneously) What's the syntax for it? I am running Korn Shell.
Thanks, (2 Replies)
Discussion started by: ocjunky
2 Replies
2. Programming
We have to convert a sequential file to a 80 char line sequential file (HP UX platform).The sequential file contains special characters. which after conversion of the file to line sequential are getting coverted into "new line" or "tab" and file is getting distorted. Is there any way to read these... (2 Replies)
Discussion started by: Rajeshsu
2 Replies
3. Shell Programming and Scripting
Hi All,
We have three shell script batch, which extract data from three different systems(oracle, db2, db2/400).
By running each shell script batch, the data is extracted from respective systems. while the batch is running, job date, system_name, start_date and end_date will be inserted into... (1 Reply)
Discussion started by: anwarsait
1 Replies
4. Shell Programming and Scripting
Hi All,
Am using the below command to start my application using the root user
su - bin -c "/home/bin/test/start.sh"
but am getting the error becaue i have set some environment varibales in bin .profile
when i execute the command start.sh by logging directly into bin account it's... (8 Replies)
Discussion started by: ravi.sri24
8 Replies
5. Shell Programming and Scripting
Hi all,
I have set up a cron job which calls another shell script shell script which in turn calls a Java process. The cron tab looks so.
0,30 7-18 * * 1-5 /u01/home/weblogic/brp/bin/checkstatus.sh >> /u01/home/weblogic/logs/checkstatus.log
The checkstatus.sh scripts looks like this.
... (4 Replies)
Discussion started by: sirbrian
4 Replies
6. Shell Programming and Scripting
I would like to run two scripts using cron one immediately after the other. Is it enough to put them one after another in the cron file to run at the same time, or will this cause them to run concurrently? (4 Replies)
Discussion started by: 3210
4 Replies
7. Shell Programming and Scripting
Hi
I have a file sequential way i.e. written in contineous mode and the Record Seperator is AM from which the record is seperated .Now to process I have to make line sequential,and more over record length is not same it varies as per the input address,
AM1234563 John Murray 24 Old streeet old... (5 Replies)
Discussion started by: vakharia Mahesh
5 Replies
8. Shell Programming and Scripting
Hi there,
Firstly, I have no experience with shell scripts so would really appreciate some help.
I have the following shell script that is causing some problems:
moveit()
{
&& set -x
if
then
DOUBLE_DELIVERY=$(grep... (6 Replies)
Discussion started by: thebeno
6 Replies
9. Programming
Writing a Tool to simulate non-sequential disk I/O (simulate db file sequential read) in C POSIX
I have over the years come across the same issue a couple of times, and it normally is that the read speed on SAN is absolutely atrocious when doing non-sequential I/O to the disks. Problem being of... (7 Replies)
Discussion started by: vrghost
7 Replies
10. Shell Programming and Scripting
I am writing a bash script to run test some scripts.
The names scripts of the scripts to tests are stored in an array.
scptArr='chcksfrd.bash'
scptArr='compute-misfit.bash'
scptArr='compute-travel-times.bash'
scptArr='create-data-tinv.bash'
scptArr='create-docs.bash' ... (3 Replies)
Discussion started by: kristinu
3 Replies
PIDOF(8) Linux System Administrator's Manual PIDOF(8)
NAME
pidof -- find the process ID of a running program.
SYNOPSIS
pidof [-s] [-c] [-n] [-x] [-o omitpid[,omitpid..]] [-o omitpid[,omitpid..]..] program [program..]
DESCRIPTION
Pidof finds the process id's (pids) of the named programs. It prints those id's on the standard output. This program is on some systems
used in run-level change scripts, especially when the system has a System-V like rc structure. In that case these scripts are located in
/etc/rc?.d, where ? is the runlevel. If the system has a start-stop-daemon (8) program that should be used instead.
OPTIONS
-s Single shot - this instructs the program to only return one pid.
-c Only return process ids that are running with the same root directory. This option is ignored for non-root users, as they will be
unable to check the current root directory of processes they do not own.
-n Avoid stat(2) system function call on all binaries which are located on network based file systems like NFS. Instead of using this
option the the variable PIDOF_NETFS may be set and exported.
-x Scripts too - this causes the program to also return process id's of shells running the named scripts.
-o omitpid
Tells pidof to omit processes with that process id. The special pid %PPID can be used to name the parent process of the pidof pro-
gram, in other words the calling shell or shell script.
EXIT STATUS
0 At least one program was found with the requested name.
1 No program was found with the requested name.
NOTES
pidof is actually the same program as killall5; the program behaves according to the name under which it is called.
When pidof is invoked with a full pathname to the program it should find the pid of, it is reasonably safe. Otherwise it is possible that
it returns pids of running programs that happen to have the same name as the program you're after but are actually other programs. Note
that that the executable name of running processes is calculated with readlink(2), so symbolic links to executables will also match.
SEE ALSO
shutdown(8), init(8), halt(8), reboot(8), killall5(8)
AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl
01 Sep 1998 PIDOF(8)