On 10/08/15 05:55, Eric Blake wrote:
> On 08/10/2015 02:18 AM, Juanma wrote:
>
>> Here is another point I find confusing: I thought a "shell builtin" didn't
>> have a separate binary executable file, like 'cd' (which cd => fail),
>
> Actually, POSIX requires that there be a separate 'cd' binary,
El Mon 10 of Aug, Bob Proulx profirió estas palabras:
> [...] This is why quoting as if they were external programs is
> required. On the other hand [[ has always been a builtin and
> therefore the shell can avoid one layer of quoting and does.
That's a good point to make. Thanks for clarifying.
Greg Wooledge wrote:
> Juanma wrote:
> > > [ is an ordinary command (a "shell builtin")
> >
> > Here is another point I find confusing: I thought a "shell builtin" didn't
> > have a separate binary executable file, like 'cd' (which cd => fail), but
> > some of them do have such form (which [ => /u
On 08/10/2015 02:18 AM, Juanma wrote:
> Here is another point I find confusing: I thought a "shell builtin" didn't
> have a separate binary executable file, like 'cd' (which cd => fail),
Actually, POSIX requires that there be a separate 'cd' binary, although
it does not have to behave the same a
On Mon, Aug 10, 2015 at 10:18:52AM +0200, Juanma wrote:
> > [ is an ordinary command (a "shell builtin")
>
> Here is another point I find confusing: I thought a "shell builtin" didn't
> have a separate binary executable file, like 'cd' (which cd => fail), but
> some of them do have such form (whic
El Fri 7 of Aug, Greg Wooledge profirió estas palabras:
> > Those brackets I cited above: ( expression )
> In the US we call those "parentheses", and we reserve the word "brackets"
> (or "square brackets") for [ ]. I realize that the UK uses different
> terminology. Hence, the word is ambiguous a
> In the US we call those "parentheses", and we reserve the word "brackets"
> (or "square brackets") for [ ]. I realize that the UK uses different
> terminology. Hence, the word is ambiguous and you should always type
> the actual characters you mean.
These are also "paréntesis" in Spanish, so it
On Fri, Aug 07, 2015 at 10:00:53AM +0200, Juanma wrote:
> El Thu 6 of Aug, Greg Wooledge profirió estas palabras:
> > I believe you are talking about the section that discusses the [[ ... ]]
> > command.
>
> Yes, you are right. And I mean, concretely, the last part:
> | Expressions may be combined
On Thu, Aug 06, 2015 at 04:13:30PM +0200, Juanma wrote:
> In section ???3.2.4.2 Conditional Constructs??? of Bash docs (both in
> ???man??? and in the web), at the end, there is an explanation on combining
> expressions, starting with the use of brackets.
>
> There it would be worth to mention t
