[ale] BASHing my head

[Ed Cashin]

Maybe whoever said that was thinking about the difficulty of writing stable
code that relies on "ls -l" output? In that case you would be better off
with stat(2) or /bin/test, probably.
On Aug 26, 2015 6:24 PM, "DJ-Pfulio" <DJPfulio at jdpfu.com> wrote:

> I seem to recall being told to NEVER parse the output from ls - ever.
> Maybe I misunderstood?
>
> On 08/26/2015 05:38 PM, Jim Kinney wrote:
> > Yeah. What he said.
> > From my F22 bash-land (4.3.39):
> > touch a.pdf A.pdf b.pdf B.pdf c.pdf C.pdf z.pdf Z.pdf
> > [jkinney at dhcp061167 tmp]$ ls
> > a.pdf  A.pdf  b.pdf  B.pdf  c.pdf  C.pdf  z.pdf  Z.pdf
> > [jkinney at dhcp061167 tmp]$ ls | grep "[A-Z].pdf"
> > A.pdf
> > B.pdf
> > C.pdf
> > Z.pdf
> > [jkinney at dhcp061167 tmp]$ ls | grep "[a-z].pdf"
> > a.pdf
> > b.pdf
> > c.pdf
> > z.pdf
> > On Wed, 2015-08-26 at 15:41 -0400, Ed Cashin wrote:
> >> I've been biting my tongue here.  I don't think these characteristics
> >> of bash are congruent with UNIX philosophy.  The people who made UNIX
> >> complain about bash being bloated.  These characteristics of bash are
> >> congruent with POSIX philosophy.
> >>
> >> A UNIX-ish way of doing this would be ...
> >>
> >>   ls | grep '^[A-Z].*\.pdf'
> >>
> >>
> >> On Wed, Aug 26, 2015 at 1:41 PM, Jim Kinney <jim.kinney at gmail.com>
> >> wrote:
> >>> Wow! Shopt has enough options to make it stand next to emacs.
> >>> I don't understand why the default is essentially case insensitive
> >>> when everything else in bash is case sensitive. It looks like the
> >>> LANG makes it work that way but that makes no sense either to me. A
> >>> != a in standard US English.
> >>> More of the secret mysteries of Unix philosophy I've never wrapped
> >>> my head around.
> >>> On Aug 26, 2015 12:16 PM, "Scott Plante" <splante at insightsys.com>
> >>> wrote:
> >>>> I didn't know the globasciiranges option.
> >>>>
> >>>> Another solution is the LC_COLLATE variable:
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