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Full Discussion: Why is ./ sometimes needed?
Top Forums Shell Programming and Scripting Why is ./ sometimes needed? Post 303029723 by wisecracker on Thursday 31st of January 2019 07:21:32 AM
Old 01-31-2019
Thanks Don...

There is this however, reference to OSX 10.14.1, default bash terminal:
Code:
Last login: Thu Jan 31 12:05:01 on ttys000
AMIGA:amiga~> man true
AMIGA:amiga~> help true
true: true
    Return a successful result.
AMIGA:amiga~> man false
AMIGA:amiga~> help false
false: false
    Return an unsuccessful result.
AMIGA:amiga~> man :
No manual entry for :
AMIGA:amiga~> help :
:: :
    No effect; the command does nothing.  A zero exit code is returned.
AMIGA:amiga~> 
AMIGA:amiga~> which true
/usr/bin/true
AMIGA:amiga~> which false
/usr/bin/false
AMIGA:amiga~> which :
AMIGA:amiga~> _

Both XUbuntu56 and I can learn from your expertise on this.
I have not copied and pasted the man pages but they do exist.

As you can see there is a manual AND a help entry for "true" and "false", do I take it the some shells, perhaps dash or ash, do not have these as builtins as it looks like I have both builtin and transient versions.
":" is builtin only so I assume that in POSIX this IS a requirement but the others are optional?

TIA.

Bazza...
 

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LEARN ABOUT DEBIAN

jifty::web::session::none

Jifty::Web::Session::None(3pm)				User Contributed Perl Documentation			    Jifty::Web::Session::None(3pm)

NAME

       Jifty::Web::Session::None - A null session handler for jifty

DESCRIPTION

       Jifty depends on its sessions to keep users logged in, to store continuations and to allow developers to store user-specific data.  In
       general, you don't want to disable them. But sometimes, the development benefits of Jifty lead you to build applications that genuinely
       don't want per-user sessions. That's where "Jifty::Web::Session::None" comes in. By specifying that you want to use
       "Jifty::Web::Session::None" as your Jifty session handler, you tell Jifty to avoid ever reading, writing or storing a user session.  No
       cookies get set. Nothing gets stored in the database.

USAGE

       In your "etc/config.yml":

	---
	framework:
	  Web:
	    SessionClass:: Jifty::Web::Session::None

METHODS

       All methods in this class are dummy methods which do no work. This class mocks the API provided by "Jifty::Web::Session".

   new
       Takes no arguments. Returns a Jifty::Web::Session::None.

   id
       Returns false.

   create
       Returns true.

   load
       Returns true.

   unload
       Returns true.

   loaded
       Returns true.

   get
       Returns false.

   set
       Returns false.

   remove
       Returns true.

   set_continuation
       Returns false.

   get_continuation
       Returns false.

   remove_continuation
       Returns false.

   continuations
       Returns false.

   set_cookie
       Returns false.

   cookie_name
       Returns false.

   expires
       Returns false.

perl v5.14.2							    2010-09-25					    Jifty::Web::Session::None(3pm)
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