[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: mysteries with the placeholder variable _

From: Robert Elz
Subject: Re: mysteries with the placeholder variable _
Date: Sun, 13 Dec 2020 07:22:22 +0700

    Date:        Sat, 12 Dec 2020 23:51:19 +0100
    From:        =?UTF-8?B?TMOpYSBHcmlz?= <lea.gris@noiraude.net>
    Message-ID:  <db238789-5c92-0b2d-a055-ce60e0be2a3b@noiraude.net>

  | - I thought the placeholder variable _

It isn't really a placeholder variable, it is a magic piece of sh*t
invented by ksh (initially) to fill the role that !$ had in csh
(bash has !$ so it isn't needed for that in bash, and $_ is/was a
VERY poor substitute in any case).

Then it was given all kinds of other meanings in other contexts.

The whole thing is a disaster, just do your best to forget it exists,
and *never* use it for anything.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]