Using variables created sequentially in a loop while still inside of the loop [bash] Post: 302328195

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Top Forums Shell Programming and Scripting Using variables created sequentially in a loop while still inside of the loop [bash] Post 302328195 by DeCoTwc on Tuesday 23rd of June 2009 04:59:10 PM

06-23-2009

Registered User

Quote:

Originally Posted by rakeshawasthi

can you put set -x in the second line of your file "question" and paste the output here...

This is the output with set -x command added:

Code:

(16:48:46\[deco@S.Man)
[~/bin]$ ./question 
++ listQpsk 40
++ grep -w '[1-4]'
+ tab=' 40 SMANHUBAQPSK1          1    1342      1194        88
 40 SMANHUBAQPSK1          2    1668      1464        87
 40 SMANHUBAQPSK1          3    1883      1535        81
 40 SMANHUBAQPSK1          4    1685      1399        83'
+ seq=1
+ num=4
+ [[ 1 -gt 4 ]]
++ echo ' 40 SMANHUBAQPSK1          1    1342      1194        88
 40 SMANHUBAQPSK1          2    1668      1464        87
 40 SMANHUBAQPSK1          3    1883      1535        81
 40 SMANHUBAQPSK1          4    1685      1399        83'
++ grep -w 1
++ awk '{print $5}'
+ eval count1=1194
++ count1=1194
+ seq=2
+ [[ 2 -gt 4 ]]
++ echo ' 40 SMANHUBAQPSK1          1    1342      1194        88
 40 SMANHUBAQPSK1          2    1668      1464        87
 40 SMANHUBAQPSK1          3    1883      1535        81
 40 SMANHUBAQPSK1          4    1685      1399        83'
++ grep -w 2
++ awk '{print $5}'
+ eval count2=1464
++ count2=1464
+ seq=3
+ [[ 3 -gt 4 ]]
++ echo ' 40 SMANHUBAQPSK1          1    1342      1194        88
 40 SMANHUBAQPSK1          2    1668      1464        87
 40 SMANHUBAQPSK1          3    1883      1535        81
 40 SMANHUBAQPSK1          4    1685      1399        83'
++ grep -w 3
++ awk '{print $5}'
+ eval count3=1535
++ count3=1535
+ seq=4
+ [[ 4 -gt 4 ]]
++ echo ' 40 SMANHUBAQPSK1          1    1342      1194        88
 40 SMANHUBAQPSK1          2    1668      1464        87
 40 SMANHUBAQPSK1          3    1883      1535        81
 40 SMANHUBAQPSK1          4    1685      1399        83'
++ grep -w 4
++ awk '{print $5}'
+ eval count4=1399
++ count4=1399
+ seq=5
+ [[ 5 -gt 4 ]]
+ echo 1194
1194
+ echo 1464
1464
+ echo 1535
1535
+ echo 1399
1399

However I was able to find a working solution to my problem:

Code:

(16:48:50\[deco@S.Man)
[~/bin]$ cat orig.question 
#!/usr/bin/bash
tab=`listQpsk 40|grep -w [1-4]`
seq=1
num=4
until [[ $seq -gt $num ]];do
var="count$seq"
eval var=`echo "$tab"|grep -w $seq|awk '{print $5}'`
echo $var
seq=$(($seq+1))
done

(16:50:12\[deco@S.Man)
[~/bin]$ ./orig.question 
1194
1464
1534
1399

DeCoTwc

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LEARN ABOUT DEBIAN

voice_set_playmode

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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