Spawing multiple display processes from one shell. - UNIX for Advanced & Expert Users

JoeTheGuy · #1 10-01-2002

Question: Suppose I want to, from the terminal, use a shell script that would do the display image.jpg command to load multiple images from a directory all at the same time. One terminal, and for example 10 image files. Basically I want to execute 10 different commands simultaniously all from the same shell and open ten different windows with the images in them.

How would this be done?

I have a basic idea with for loops, number sequences, and background processes. But is there an easy way that's pretty much universal on any unix platform?

for file in `ls -1 *.jpg`; do display $file; done

does a nice job of displaying the images in alphabetic order one by one. but I want to load em all up all at the same time from one shell.

JoeTheGuy · #2 10-01-2002

basically what i mean is something like this in terms of command execution

command excuted loads:
|____process-- a-|
|____process-- b-|____ * all same time
|____process-- c-|
|____process-- d-|

* all same time: split second differences don't matter really but basically the terminal is just doing a bunch of stuff all together.

LivinFree · #3 10-01-2002

To display all of the ... *ahem* pictures... in a directory at the same time, you can try something like:

Code:

#! /bin/ksh
for each in *.jpg; do
  /usr/bin/ee $each &
done

Substitute your file viewer for /usr/bin/ee...
The trick would be to put each one in the background... As soon as one starts, it goes into the background, and the next begins opening - although this wouldn't be simultaneous, it might work for your needs.

JoeTheGuy · #4 10-02-2002

Hey, cool. It works. It's kinda a heavy load but it's effective. Thanks.

JoeTheGuy · #5 10-02-2002

wow! I used that command to play multiple wav files all at the same time through esd.

The result was scary!

for file in `slocate .wav`; do esdplay $file & done

uh huh huh huh huh huh

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
Multiple processes writing on the same file simultaneously	Sayantan	Shell Programming and Scripting	1	01-23-2008 12:28 AM
Doubt about multiple processes	Legend986	Shell Programming and Scripting	9	10-29-2007 08:49 AM
spawning multiple processes spread across two files	StrengthThaDon	High Level Programming	1	09-17-2007 02:03 PM
Running multiple processes in Linux	abcabc1103	UNIX for Dummies Questions & Answers	2	07-09-2007 02:21 PM
How Can I Have Top Display The Top 20 Processes??	TRUEST	UNIX for Dummies Questions & Answers	1	05-23-2003 05:24 AM

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode