Date: Sun, 6 Jun 2010 22:06:07 -0600 From: Chad Perrin <perrin@apotheon.com> To: freebsd-questions@freebsd.org Subject: Re: which is the basic differences between the shells? Message-ID: <20100607040607.GC29350@guilt.hydra> In-Reply-To: <20100606200628.GA8748@holstein.holy.cow> References: <AANLkTinG745GjOaZKLT1TfKgqVi6VHt9-ciHWQUY57VT@mail.gmail.com> <20100605231715.GD69990@libertas.local.camdensoftware.com> <20100606163136.GA27788@guilt.hydra> <20100606175043.GA46089@libertas.local.camdensoftware.com> <20100606182148.GB28095@guilt.hydra> <20100606200628.GA8748@holstein.holy.cow>
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On Sun, Jun 06, 2010 at 10:06:28AM -1000, parv@pair.com wrote:
>=20
> I cannot say about the tcsh features.
That's kind of a shame, since tcsh is what I prefer these days, having
long since given up on bash (pretty much immediately after I started
using FreeBSD as my primary OS instead of bash, and realized I preferred
the csh-style syntax).
>=20
> I switched from bash to zsh mainly for excellent vi-mode editing
> support, more so over multiple lines. ksh & bash were horrible in
> that respect.
I've never really tried using vi-mode editing in any shell, despite the
fact I'm a constant vi user (even a vi gangsta, one might say). Maybe I
should some day. Thus far, though, I don't even know if tcsh supports
vi-mode editing.
>=20
> Recently I have found that regular expression like [a-d] (instead of
> {a,b,c,d}) in file name generation work as expected. zsh has more
> ways to help file name generation which I have not looked into yet.
>=20
> And of course, as stated earlier, compatibility between a bourne
> shell script & an interactive shell helps immensely while
> developing|debugging a script.
This is another area where I just haven't run into the need for that sort
of thing. When I use a regex at the command prompt, it's via grep,
basically -- I don't tend to get more fancy than something like globbing.
For scripting, I stick to sh and "real" programming languages like Perl
and Ruby. I'm not terribly clear on tcsh's regex support, and I guess if
I needed shell compatibility when writing a shell script (which, for me,
is usually just a batch file, perhaps with a little flow control and a
variable or two) I can always just start sh.
--=20
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]
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