By making use of the Alias module perhaps? 
$ perl -MAlias -E 'alias foo => $!; for (1 .. 10) {$! = $_; say $foo}'
Operation not permitted
No such file or directory
No such process
Interrupted system call
Input/output error
No such device or address
Argument list too long
Exec format error
Bad file descriptor
No child processes

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In reply to Re: alias of a variable by JavaFan
in thread alias of a variable by vinoth.ree

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