2012/6/1 Maxim Gonchar <gma...@gmail.com>
> Right,
>
> the only difficulty is 'if statement'.
>
> in bash you could do something like this:
> if cmd1 args1 && cmd2 args2 && cmd3 args3
> then
> #some code
> fi
>
> But for fish it is not the case, because 'if' is the command as well.
> It took some time for me to understand that I can do this in fish in the
> following way:
> cmd1 args1; and cmd2 args2
> if and cmd3 args3
> #some code
> end
>
Cool. I hadn't though of doing it that way. What I usually do, which is
significantly wordier, but (to me) a bit more readable is:
if begin; cmd1args1; and cmd2 args2; and cmd3 arg3; end
#some code
end
A begin/end block of commands can actually be used for pretty much
everything a regular command can be used for, e.g. output redirection, used
as an element in a pipe.
Axel
> regards,
> Maxim
>
> On Fri, 01 Jun 2012 04:22:56 +0400, Philip Ganchev
> <phil.ganc...@gmail.com> wrote:
>
> > On Thu, May 31, 2012 at 12:14 AM, ridiculous_fish
> > <corydo...@ridiculousfish.com> wrote:
> >>
> >> On May 30, 2012, at 1:17 PM, Maxim Gonchar wrote:
> >>
> > [...]
> >> 4. I think fish is doing the right thing with "false ; and sdlkfjsdklf".
> >> That semicolon means that the 'and' is the beginning of a new
> >> statement, and
> >> fish agrees with other shells (including fish trunk) that this is an
> >> error.
> >> Remove the semicolon ("false and sdlkfjdsklf") and it does not error.
> >>
> >> This statement confronts all my fish experience. I use fish as default
> >> shell
> >> for the long time.
> >> What about "echo 123 and echo 234" and "echo 123; and echo 234"?
> >
> > If I might add to that: having 'and', 'or' and 'not' as separate
> > commands seems conceptually simpler to me. Also, it is more useful for
> > interactive use, because you can start executing a command like 'foo'
> > and then add 'and bar'.
>
>
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