[SOLVED][bash]How to sign the value that a variable got signed to?

lolilolicon · 2009-06-20 13:20:35

Let me explain it by an example, say

D1=red ; i=1 ; D$i=blue ; echo $D1

returns

bash: D1=blue: command not found
red

I expect it to return "blue".

So you cannot sign a value to "D$i" by "D$i=blue"

I also tried it another way

D1=red ; i=1 ; echo "D$i=blue" | sh ; echo $D1

returns

red

So...how can I teach it to say "blue"?

Last edited by lolilolicon (2009-06-20 13:52:31)

sisco311 · 2009-06-20 13:26:51

lolilolicon · 2009-06-20 13:49:58

ya, works like a charm. I got blue!

$ D[1]=red ; i=1 ; D[$i]=blue ; echo ${D[1]}
blue

lolilolicon · 2009-06-20 13:51:23

Thanks, sisco311!

Procyon · 2009-06-20 14:17:46

printf -v D$i blue

lolilolicon · 2009-06-20 14:54:48

Even better! :-)

$ D1=red ; i=1 ; printf -v D$i blue ; echo $D1
blue

lolilolicon · 2009-06-20 15:00:04

Also works:

$ D1=red ; i=1 ; read D$i <<< blue ; echo $D1
blue

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