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Re: [Help-bash] Dumb question about variable increment
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From: |
Greg Wooledge |
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Subject: |
Re: [Help-bash] Dumb question about variable increment |
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Date: |
Thu, 3 Mar 2016 10:24:35 -0500 |
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User-agent: |
Mutt/1.4.2.3i |
On Thu, Mar 03, 2016 at 03:27:41PM +0100, Florent B wrote:
> UPDATED=0
> false || ( true && ((UPDATED++)) )
>
> Why does my variable UPDATED does not increment ?
It does, but the increment takes place in the subshell that you explicitly
requested by putting parentheses around true && ((UPDATED++)).
Parentheses create a subshell. If you simply wanted a command grouping,
use curly braces:
false || { true && ((UPDATED++)); }
This one doesn't create a subshell.