Solved

detecting proc-id

Posted on 2004-04-06
2
230 Views
Last Modified: 2010-05-18
Hi!

I am running a process in linux or unix which I need to run only one process at a time. How can i write a script wherein the user can only execute one process at a time? If the process is already running then it will not run again until the process currently executing is completed.

Any help or comment would be very much appreciated.

Thanks.
0
Comment
Question by:marou
2 Comments
 
LVL 17

Expert Comment

by:owensleftfoot
ID: 10770515
#!/usr/bin/perl
$psaux =`ps aux`;
$result = $psaux !~ /myprocessname/;
if ($result) {
system("mycommand");
}
is sort of what you are looking for.
0
 
LVL 40

Accepted Solution

by:
jlevie earned 50 total points
ID: 10779547
You can do in the shell with:

if [ `ps -ef | grep procname | grep -v grep | wc -l` -gt 0 ]; then
  echo "Process procname is already running, sorry"
  exit 1
else
  echo "Starting  procname"
  /path-to/procname
fi
0

Featured Post

Master Your Team's Linux and Cloud Stack

Come see why top tech companies like Mailchimp and Media Temple use Linux Academy to build their employee training programs.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.   IT can be done and here's how to get i…
Note: for this to work properly you need to use a Cross-Over network cable. 1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question