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From: | Pierre Gaston |
Subject: | Re: Curious case of arithmetic expansion |
Date: | Sun, 23 Apr 2017 14:55:28 +0300 |
Consider
$ foo=bar; bar=moo; moo=123
$ echo $foo $bar $moo
=> bar moo 123
$ echo $((foo))
=> 123
$ echo $foo $bar $moo
=> bar moo 123
$ # so far so good but
$ ((foo++))
$ echo $foo $bar $moo
=> 123 moo 123
Now my chain of indirections is broken…
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