random number generator

[CYBERCULTURE]

I am a beginner with bash/awk etc. I generate a number with the script below that works

1. I would like to round this number up
2. I would like to declare a variable that will have the value of the rounded up number.


can somebody please help or provide a link?thanks in advance


AWKSCRIPT=' { srand(); print rand()*10000 } '
echo | awk "$AWKSCRIPT"

 

[LKBrwnDBA]

Try:

AWKSCRIPT=' { srand(); print rand()*10000 } '
randVar=`awk "$AWKSCRIPT"`

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[CYBERCULTURE]

thanks for the post..I tried ur script and some variations but unfortunately it doesnt seem to work

 

[Annihilannic]

Is $RANDOM not good enough for you?

Otherwise, try:

awk 'BEGIN { srand(); printf("%d\n",rand()*10000) }'

Annihilannic.

 

[CYBERCULTURE]

this works great!

any tip how I can get the output value in a variable that I can further use?

$RANDOM was what I first tried but I couldn't make it work..

thanks!

 

[Annihilannic]

myvar=$(awk 'BEGIN { srand(); printf("%d\n",rand()*10000) }')

Which shell are you using, perhaps $RANDOM isn't implemented in it?

Annihilannic.

 

[CYBERCULTURE]

so thankful!!!!

does the line below say anything concerning the shell I am using?
#!/bin/sh

or this one?
BusyBox v1.13.4 (2009-10-10 01:39:56 CEST) built-in shell (ash)

I am working on a wifi router after I installed this linux firmware/OS:

http://www.dd-wrt.com/wiki/index.php/Main_Page

 

[Annihilannic]

I see, it's an embedded system, so the shell probably has minimal functionality to save memory footprint.

Annihilannic.

 

[CYBERCULTURE]

I guess this is my shell:

http://en.wikipedia.org/wiki/BusyBox

 

[CYBERCULTURE]

correction:

http://en.wikipedia.org/wiki/Ash_shell