Christian Weisgerber <na...@mips.inka.de> wrote:
> On 2020-08-14, Jason McIntyre <j...@kerhand.co.uk> wrote:
>
> > - i cannot work out what is with the \! examples. i know we try to make
> > entries work for both csh and sh style shells, but stuff like this
> > works without escaping:
> >
> > $ find . ! -type f
>
> Going through the CVS and SCCS history, I see that the examples
> came with a rewrite of find(1) at Berkeley 30 years ago.
>
> csh's behavior that "for convenience, a `!' is passed unchanged
> when it is followed by a blank, tab, newline, `=' or `('" has been
> documented as such at least since the start of the CSRG repository
> in 1985.
>
> bash, whose history substitution was modeled on csh, also shares
> this behavior.
>
> I think it was never necessary to escape the '!' and the man page
> examples were written with an abundance of caution and a lack of
> understanding of csh's exact replacement mechanism.
Yep, so I think that particular escape should be deleted.
