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Does SH support indirect expansion like BASH?


 
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# 1  
Old 06-09-2011
Does SH support indirect expansion like BASH?

Hello,

is there a kind soul who can answer me, does the SH support double substitution known as indirect expansion similar to BASH? The syntax for bash is ${!var}.

For instance in bash I can write something like this:

Code:
VAR="value"
REF_VAR="VAR"
echo ${!REF_VAR}

and get the "value" output. Is there a way to acheive this in SH?

If no is there a workaround on it?

Thank you.

Last edited by radoulov; 06-09-2011 at 01:17 PM.. Reason: Code tags!
# 2  
Old 06-09-2011
Which sh? They're not all the same.

If your shell doesn't support ${!...} then you'll have to use the eval hack.
Code:
VAR2=asdf
VAR1=VAR2
eval echo \$$VAR1

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