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Top Forums Shell Programming and Scripting Is there a better way I could have run this loop. (For loop with two variables) Post 302301448 by DeCoTwc on Thursday 26th of March 2009 11:09:51 PM
Old 03-27-2009
Is there a better way I could have run this loop. (For loop with two variables)

Sorry for such a dreadful title, but I'm not sure how to be more descriptive. I'm hoping some of the more gurutastic out there can take a look at a solution I came up with to a problem, and advice if there are better ways to have gone about it.

To make a long story short around 20K pieces of equipment de-registered, and the only way to re-register them relies on using a manual script that needs the equipments MAC address and IP address. Unfortunately there is no current way to run the script against a file with the information. So I decided that a loop would be the best way to go about it.

What I wound up doing was creating a pipe delimited file with the equipment info, and running the following against it:

Code:
[mystro@mys-nycnm-srv01 scripts]$ head -5 IP
00:0F:21:FE:29:67|10.130.192.173
00:0F:21:FE:2D:57|10.140.66.207
00:0F:21:FE:2E:21|10.153.200.37
00:0F:21:FE:2E:88|10.141.146.134
00:0F:21:FE:2E:CA|10.157.206.8

[mystro@mys-nycnm-srv01 scripts]$ for i in `cat IP`;do mac=$(echo "$i"|cut -f1 -d\|);ip=$(echo "$i"|cut -f2 -d\|);/usr/local/mystro/scripts/mdiags cid reg $mac $ip;done

It worked perfectly, but as I'm (obviously) not the most skilled scripter I always like to hear critiques from more experienced people.

IE: Should I have not used echo...is there an easier way to isolate the info than cut...etc.
 

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voice_set_playmode(3alleg4)					  Allegro manual				       voice_set_playmode(3alleg4)

NAME
voice_set_playmode - Adjusts the loop status of the specified voice. Allegro game programming library. SYNOPSIS
#include <allegro.h> void voice_set_playmode(int voice, int playmode); DESCRIPTION
Adjusts the loop status of the specified voice. This can be done while the voice is playing, so you can start a sample in looped mode (hav- ing set the loop start and end positions to the appropriate values), and then clear the loop flag when you want to end the sound, which will cause it to continue past the loop end, play the subsequent part of the sample, and finish in the normal way. The mode parameter is a bitfield containing the following values: PLAYMODE_PLAY Plays the sample a single time. This is the default if you don't set the loop flag. PLAYMODE_LOOP Loops repeatedly through the sample, jumping back to the loop start position upon reaching the loop end. PLAYMODE_FORWARD Plays the sample from beginning to end. This is the default if you don't set the backward flag. PLAYMODE_BACKWARD Reverses the direction of the sample. If you combine this with the loop flag, the sample jumps to the loop end position upon reaching the loop start (ie. you do not need to reverse the loop start and end values when you play the sample in reverse). PLAYMODE_BIDIR When used in combination with the loop flag, causes the sample to change direction each time it reaches one of the loop points, so it alternates between playing forwards and in reverse. SEE ALSO
Allegro version 4.4.2 voice_set_playmode(3alleg4)
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