Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: While loop - how to run processes one after another (2nd starts after first completes, and so on)
Top Forums Shell Programming and Scripting While loop - how to run processes one after another (2nd starts after first completes, and so on) Post 302771105 by pathunkathunk on Tuesday 19th of February 2013 04:28:41 PM
Old 02-19-2013
While loop - how to run processes one after another (2nd starts after first completes, and so on)
I'm a programming noob. I'm trying to run a memory intensive process for many files. But when I use the following script, it runs fine for the first 5-7 files, then runs out of memory. Monitoring the output files, it's clear the processes are going on in parallel. Once 5-7 of the files are being run at once, I get a crash. I'd like to run the script so that the first process completes before the next one starts (or the effective equivalent). Any pointers?

Code:
#!/bin/bash

i=1

while [ $i -le 197 ]
do
my.program.command.here
i=$[$i+1]
done

Last edited by Scrutinizer; 02-19-2013 at 06:17 PM.. Reason: code tags
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to run processes in parallel?

In a korn shell script, how can I run several processes in parallel at the same time? For example, I have 3 processes say p1, p2, p3 if I call them as p1.ksh p2.ksh p3.ksh they will run after one process finishes. But I want to run them in parallel and want to display "Process p1... (3 Replies)
Discussion started by: sbasak
3 Replies

2. UNIX for Advanced & Expert Users

Run away processes

Hi, My server runnning on SUN Solaris rel.5.5.1. I have been facing this issues for years. I have some Xbase databases running on the server. User is using emulation software to telnet to server for accessing application. If user logout application abnormally - by closing windows session, then... (2 Replies)
Discussion started by: lowtaiwah
2 Replies

3. UNIX for Advanced & Expert Users

script to run different shells which run different processes

Hi, Would like to ask the experts if anyone knows how to run a script like this: dtterm -title shell1 run process1 on shell1 dtterm -title shell2 run process2 on shell2 cheers! p/s: sorry if i used the wrong forum, quite concussed after watching world cup for several nights; but I... (2 Replies)
Discussion started by: mochi
2 Replies

4. UNIX for Dummies Questions & Answers

how can I run something as root (modprobe, to be exact) every time computer starts.

I have the root password for my box, but I'm ignorant. So, every time I start my computer, I have to run this command /sbin/modprobe fuse as su, so that I can do other stuff (like mount remote directories locally using sshfs) I guess there's some file, like .bashrc, only it's applicable... (4 Replies)
Discussion started by: tphyahoo
4 Replies

5. UNIX for Dummies Questions & Answers

Two questions. First one; What are the ways in which a program starts to run.

This is my first post here so hello everyone! I know that a command of the programs name can start a program and clicking on a icon in GUI can as well as a startup shell script but how do I educate myself of the method that starts an application? Does the GUI run a script? What are the ways/ way... (2 Replies)
Discussion started by: theKbStockpiler
2 Replies

6. UNIX and Linux Applications

how to run more than two processes parallely

I would like to call a function called CIRCLE which is further beind called by other function but in a loop that CIRCLE fuction is being called. And this CIRCLE function starts another process which takes 3 hours to complete again, if i put that process in nohup &, I can go to the next command... (2 Replies)
Discussion started by: venugopalsmartb
2 Replies

7. UNIX for Dummies Questions & Answers

Maximum no of processes that can run

Is there any limit in UNIX that only a MAXIMUM no of processes can run at a time? If so, it exceeds then what would be the error we would receive? (4 Replies)
Discussion started by: jansat
4 Replies

8. Shell Programming and Scripting

Array Variable being Assigned Values in Loop, But Gone when Loop Completes???

Hello All, Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....? I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping through a string containing some of these "Illegal Characters". Now... (5 Replies)
Discussion started by: mrm5102
5 Replies

9. Homework & Coursework Questions

When I run the script, the cursor starts on the wrong line?

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: It's a shell script using a looping logic, trap, tput, if, while. Most of the scripts in this book aren't written... (2 Replies)
Discussion started by: ckleinholz
2 Replies

10. Shell Programming and Scripting

Need to write a shell script that starts one, then kills it, then starts another?

This is on a CentOS box, I have two scripts that need to run in order. I want to write a shell script that calls the first script, lets it run and then terminates it after a certain number of hours (that I specify of course), and then calls the second script (they can't run simultaneously) which... (3 Replies)
Discussion started by: btramer
3 Replies

LEARN ABOUT SUNOS

gst-complete-0.8

gst-complete-0.8(1)						   User Commands					       gst-complete-0.8(1)

NAME

       gst-complete-0.8, gst-complete - perform bash completion for gst-launch command lines

SYNOPSIS

       complete -Cgst-complete-0.8 gst-launch

       gst-complete [--gst-list-mm] [--gst-mm=string] [--print]

DESCRIPTION

       gst-complete-0.8 enables bash to provide context-sensitive tab completion for gst-launch command lines. See gst-launch(1) for the syntax of
       gst-launch command lines.

       You must have a version of bash that supports programmable completion. Such versions of bash provide the complete built-in command.

       gst-complete is a wrapper script that runs the latest installed version of gst-complete-X.X. For example, if both gst-complete-0.7 and gst-
       complete-0.8 are installed on your system, gst-complete runs gst-complete-0.8.

OPTIONS

       The following options are supported by gst-complete-0.8 and gst-complete:

       --help	       Display detailed usage message. You can also use -? to specify this option.

       The following options are supported by gst-complete only:

       --gst-list-mm   List found major/minor versions. This option displays the versions that are available.

       --gst-mm=string Force  major/minor  version.  This  option  enables you to specify a specific version to run, if you do not want to run the
		       default version.

       --print	       Print wrapped command line. This option displays the command that will be run, and then runs the command.

EXAMPLES

       Example 1: Generating the Registry of Available Plugins by Running gst-compprep

       Run the following command in your .bash_profile or other appropriate place:

       example% complete -C gst-complete-0.8 gst-launch

       Example 2: Running the Wrapper Script and Displaying the Command Name

       example% gst-complete --print
       /usr/bin/gst-complete-0.8

FILES

       The following files are used by this application:

       /usr/bin/gst-complete-0.Executable for bash completion for gst-launch

       /usr/bin/gst-complete   Wrapper script that runs the latest installed version of gst-complete-X.X

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWgnome-media		   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |External			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       gst-compprep(1), gst-feedback(1), gst-inspect(1), gst-launch(1), gst-launch-ext(1), gst-md5sum(1), gst-register(1), gst-thumbnail(1),  gst-
       typefind(1), gst-xmlinspect(1), gst-xmllaunch(1), gstreamer-properties(1), libgstreamer-0.8(3), libgstgetbits(3)

NOTES

       Original man page written by the GStreamer team at http://gstreamer.net/.

       Updated by Brian Cameron, Sun Microsystems Inc., 2004.

SunOS 5.10							    14 Oct 2004 					       gst-complete-0.8(1)
All times are GMT -4. The time now is 02:18 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy