EXPR evaluates an expression and displays the result on STDOUT.
I would like to suggest that the result also be saved to an environment variable,
perhaps _expr,
so that it can be used in the next expression:
Example;
I can do this now as follows...
...but...
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I would like to suggest that the result also be saved to an environment variable,
perhaps _expr,
so that it can be used in the next expression:
Example;
Code:
expr %_expr * 10I can do this now as follows...
Code:
U:\>alias expr=`set _expr=%{*expr %$} & echo %_expr`
U:\>expr 10 * 2
20
U:\>echo %_expr
20
U:\>set _expr
20
U:\>expr %_expr * 2
40
U:\>echo %_expr
40
U:\>set _expr
40
U:\>...but...
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