Regular Expression Case Sensitivity

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Author: David Mandala
Date:
Subject: Regular Expression Case Sensitivity

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add an "a" to the command to see hidden files. What are hidden files you
ask, they are files that start with "."

so to see hidden files type "ls -a" or "ls -la"

Cheers,

Davidm

> -----Original Message-----
> From: Jim [mailto:farli@unitywave.com]
> Sent: Tuesday, December 04, 2001 1:09 PM
> To: plug-discuss@lists.PLUG.phoenix.az.us
> Subject: Re: Regular Expression Case Sensitivity
>
>
> The 'rm' only asked me if i wanted to delete aaaa and bbbb,
> as it should.
> The really interesting thing that I found is that ls and ls-l
> never showed me
> the .abcd file.
>
>
> On Tuesday 04 December 2001 12:54, you wrote:
> > Try this in an empty directory and let me know if this is a bug or a
> > feature or an error on my part.
> >
> > Create several files of upper and lower case names:
> >
> > touch aaaa > > touch AAAA > > touch bbbb > > touch BBBB > > touch 1234 > > touch .abcd

> >
> > Now use a regular expression to delete all files starting
> with a lower case
> > letter:
> >
> > rm [a-z]*

> >
> > When I was experimenting with this all of the files
> starting with *any*
> > alphabetic character were deleted. This was unexpected and
> I'm not sure if
> > I am misinterpreting the regular expression or if I am
> delusional. Let me
> > know what you get. FYI, I am using Red Hat Linux 7.2 so I would be
> > interested if it's just me.
> >
> > Brian
> > ________________________________________________
> > See http://PLUG.phoenix.az.us/navigator-mail.shtml if your
> mail doesn't
> > post to the list quickly and you use Netscape to write mail.
> >
> > PLUG-discuss mailing list - PLUG-discuss@lists.PLUG.phoenix.az.us
> > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
> ________________________________________________
> See http://PLUG.phoenix.az.us/navigator-mail.shtml if your
> mail doesn't post to the list quickly and you use Netscape to
> write mail.
>
> PLUG-discuss mailing list - PLUG-discuss@lists.PLUG.phoenix.az.us
> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
>

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<TITLE>RE: Regular Expression Case Sensitivity</TITLE>
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add an "a" to the command to see hidden =
files. What are hidden files you ask, they are files that start with =
"."


so to see hidden files type "ls -a" or =
"ls -la"

 

Cheers,

 

Davidm


> -----Original Message-----
 > From: Jim [<A =
HREF=3D"mailto:farli@unitywave.com">mailto:farli@unitywave.com</A>]</FON=
T>
 > Sent: Tuesday, December 04, 2001 1:09 PM
 > To: =
plug-discuss@lists.PLUG.phoenix.az.us
 > Subject: Re: Regular Expression Case =
Sensitivity
 > 
 > 
 > The 'rm' only asked me if i wanted to delete =
aaaa and bbbb, 
 > as it should.  
 > The really interesting thing that I found is =
that ls and ls-l 
 > never showed me 
 > the .abcd file.
 > 
 > 
 > On Tuesday 04 December 2001 12:54, you =
wrote:
 > > Try this in an empty directory and let me =
know if this is a bug or a
 > > feature or an error on my part.
 > >
 > > Create several files of upper and lower =
case names:
 > >
 > >     touch aaaa
 > >     touch AAAA
 > >     touch bbbb
 > >     touch BBBB
 > >     touch 1234
 > >     touch .abcd
 > >
 > > Now use a regular expression to delete all =
files starting 
 > with a lower case
 > > letter:
 > >
 > >     rm [a-z]*
 > >
 > > When I was experimenting with this all of =
the files 
 > starting with *any*
 > > alphabetic character were deleted.  =
This was unexpected and 
 > I'm not sure if
 > > I am misinterpreting the regular =
expression or if I am 
 > delusional.  Let me
 > > know what you get.  FYI, I am using =
Red Hat Linux 7.2 so I would be
 > > interested if it's just me.
 > >
 > > Brian
 > > =
________________________________________________
 > > See <A =
HREF=3D"http://PLUG.phoenix.az.us/navigator-mail.shtml" =
TARGET=3D"_blank">http://PLUG.phoenix.az.us/navigator-mail.shtml</A> if =
your 
 > mail doesn't
 > > post to the list quickly and you use =
Netscape to write mail.
 > >
 > > PLUG-discuss mailing list  -  =
PLUG-discuss@lists.PLUG.phoenix.az.us
 > > <A =
HREF=3D"http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss" =
TARGET=3D"_blank">http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-=
discuss</A>
 > =
________________________________________________
 > See <A =
HREF=3D"http://PLUG.phoenix.az.us/navigator-mail.shtml" =
TARGET=3D"_blank">http://PLUG.phoenix.az.us/navigator-mail.shtml</A> if =
your 
 > mail doesn't post to the list quickly and you =
use Netscape to 
 > write mail.
 > 
 > PLUG-discuss mailing list  -  =
PLUG-discuss@lists.PLUG.phoenix.az.us
 > <A =
HREF=3D"http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss" =
TARGET=3D"_blank">http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-=
discuss</A>
 > 


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