Sponsored Content
Top Forums Shell Programming and Scripting Implement parallel processing Post 302834535 by kumarjt on Friday 19th of July 2013 06:48:31 AM
Old 07-19-2013
No , loops would make the execution sequential, because unless the process within a SINGLE loop ietration completes , the control cannot be passed back to the shell prompt for the next iteration processing to commence.

What I want is :
Start instance 1 , immediately start instance 2 and do not wait for the exit status of instance 1 .
SIMULTANEOUS PROCESSING . Not sequential .
Similar to the "tee" command , process input and write to a file at one go.

Thanks
Kumarjit.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to do parallel processing??

Hi All, I am working on solaris 8 sparc machine with 2 cpu. I am trying to run my application which generates files. I run multiple instance of the application, but the results don't seem to show as if it were runing parallely. When i run the application once it takes 12 secs to generate a... (1 Reply)
Discussion started by: zing
1 Replies

2. Shell Programming and Scripting

parallel processing

Hi I want to run two shell script files parallely. These two scripts are interacting with the database. can any body help on this Pls Regards Audippa naidu.M (3 Replies)
Discussion started by: audippa
3 Replies

3. Shell Programming and Scripting

Need Help With Parallel Processing

Hi I am looking for some kind of feature in unix that will help me write a script that can invoke multiple processes in parallel. And make sure that the multiple parallel processes complete successfully before I proceed to the next step. Someone suggested something called timespid or... (6 Replies)
Discussion started by: imnewtothis23
6 Replies

4. Shell Programming and Scripting

parallel processing

hi i am preparing a set of batches for a set of files sequentially There is a folder /xyz where all the files reside now all the files starting with 01 - will be appended for one below other to form a batch batch01 then all the files starting with 02 - will be appended for one below other to... (7 Replies)
Discussion started by: mad_man12
7 Replies

5. Shell Programming and Scripting

How to make parallel processing rather than serial processing ??

Hello everybody, I have a little problem with one of my program. I made a plugin for collectd (a stats collector for my servers) but I have a problem to make it run in parallel. My program gathers stats from logs, so it needs to run in background waiting for any new lines added in the log... (0 Replies)
Discussion started by: Samb95
0 Replies

6. Shell Programming and Scripting

PARALLEL PROCESSING IN PERL

HI All, I have scenerio where I need to call sub modules through for loop for (i=0; i<30 ;i++) { .. .. .. subroutine 1; subroutine 2; } I want this to be run in parallel process1 { ... ... subroutine 1; subroutine 2; (0 Replies)
Discussion started by: gvk25
0 Replies

7. Shell Programming and Scripting

Parallel processing in bash?

Hi Say I am interested in processing a big data set over shell, and each process individually takes a long time, but many such processes can be pipe-lined, is there a way to do this automatically or efficiently in shell? For example consider pinging a list addresses upto 5 times each. Of... (5 Replies)
Discussion started by: jamie_123
5 Replies

8. Programming

Parallel processing pthread

Need urgent help on thread: the goal here is the separtemask will take each image and separate different contours and for each contour in the image it will call handleobject thread. So every for loop will call the handeobject thread. However, object index variable needs to be passed in each... (0 Replies)
Discussion started by: temursalin
0 Replies

9. Shell Programming and Scripting

Parallel processing - continued

Hi, I am taking up the cue from where I was left in my earlier post ( link given below ) https://www.unix.com/shell-programming-scripting/231107-implement-parallel-processing.html I actually wanted to know the significance of using the Unix "wait" , which returns the control from background to... (3 Replies)
Discussion started by: kumarjt
3 Replies

10. Shell Programming and Scripting

Parallel processing

I have 10,000 + files, each of which I need to zip using bzip2. Is ti possible to use bash to create 8 parallel streams sending a new file to be processed from the list when one of the others has finished? (1 Reply)
Discussion started by: garethsays
1 Replies
break(1)							   User Commands							  break(1)

NAME
break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until loop SYNOPSIS
sh break [n] continue [n] csh break continue ksh *break [n] *continue [n] DESCRIPTION
sh The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels. The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop. csh The break utility resumes execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line. The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop. ksh The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified, then break n levels. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be exited. The continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n- th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera- tion are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), exit(1), ksh(1), sh( 1), attributes(5) SunOS 5.10 17 Jul 2002 break(1)
All times are GMT -4. The time now is 07:07 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy