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From: | Florian Mayer |
Subject: | Curious case of arithmetic expansion |
Date: | Sun, 23 Apr 2017 12:12:08 +0200 |
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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