Re: default/simple globbing

[#!microsuxx]

and i reccommend learning more ...

1. dev sys is space safe

2. look

~/tt $ ls

2-3  2-3.1  2-3:1.0  usb2
~/tt $ declare -a "arr=( $( ls --hide='*[:.]*' --hide='[!0-9]*'
--quoting-style=shell-escape-always ) )" ; declare -p arr
declare -a arr=([0]="2-3")

and...

~/tt $ cd ..
~ $ mkdir tt2
~ $ cd tt2
~/tt2 $ touch '$( ..' '$( echo foo )' '$( echo foo >&2 )' '{' $'\1\xff'
~/tt2 $ declare -a "arr=( $( ls --quoting-style=shell-escape-always ) )" ;
declare -p arr
declare -a arr=([0]=$'\001\377' [1]="\$( .." [2]="\$( echo foo )" [3]="\$(
echo foo >&2 )" [4]="{")
~/tt2 $

friendly greetings ++

On Thu, Nov 28, 2024, 10:12 PM Chris Elvidge <celvidge001@gmail.com> wrote:

> On 28/11/2024 at 20:48, #!microsuxx wrote:
> > for d in $( ls --hide='*[:.]*' --hide='[!0-9]*' /sys/bus/usb/devices/ ) ;
> > do echo "$d" ; done
>
> Parsing the output of ls is not recommended.
> See (for e.g.) Greg's wiki: https://mywiki.wooledge.org/ParsingLs
>
> >
> > On Thu, Nov 28, 2024, 9:15 PM Chris Elvidge <celvidge001@gmail.com>
> wrote:
> >
> >> On 28/11/2024 at 19:56, Lawrence Velázquez wrote:
> >>> On Thu, Nov 28, 2024, at 8:56 AM, Chris Elvidge wrote:
> >>>> ls --hide='*:*' --hide='*.*' -l /sys/bus/usb/devices/
> >>>
> >>> As mentioned in a subsequent message, OP was using ls as an example;
> >>> the actual context is generating filenames for a loop.
> >>>
> >>> (In general, I wish people would stop trying to "simplify" their
> >>> questions like this, but that's neither here nor there.)
> >>>
> >>
> >> If s/he wants to generate the filenames s/he should be using an array,
> >> surely?
> >> e.g. files=(/sys/bus/usb/devices/*)
> >> and then : for f in ${files[@]}; do check $f && dowhatever; done
> >>
> >> --
> >> Chris Elvidge
> >> England
> >>
> >>
> >>
> >
>
>
> --
> Chris Elvidge
> England
>
>
>