Regular Expression Case Sensitivity
David Mandala
plug-discuss@lists.PLUG.phoenix.az.us
Tue, 4 Dec 2001 13:39:01 -0700
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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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<P><FONT SIZE=3D2>add an "a" to the command to see hidden =
files. What are hidden files you ask, they are files that start with =
"."</FONT>
</P>
<P><FONT SIZE=3D2>so to see hidden files type "ls -a" or =
"ls -la"</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>Cheers,</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>Davidm</FONT>
</P>
<P><FONT SIZE=3D2>> -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>> From: Jim [<A =
HREF=3D"mailto:farli@unitywave.com">mailto:farli@unitywave.com</A>]</FON=
T>
<BR><FONT SIZE=3D2>> Sent: Tuesday, December 04, 2001 1:09 PM</FONT>
<BR><FONT SIZE=3D2>> To: =
plug-discuss@lists.PLUG.phoenix.az.us</FONT>
<BR><FONT SIZE=3D2>> Subject: Re: Regular Expression Case =
Sensitivity</FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> The 'rm' only asked me if i wanted to delete =
aaaa and bbbb, </FONT>
<BR><FONT SIZE=3D2>> as it should. </FONT>
<BR><FONT SIZE=3D2>> The really interesting thing that I found is =
that ls and ls-l </FONT>
<BR><FONT SIZE=3D2>> never showed me </FONT>
<BR><FONT SIZE=3D2>> the .abcd file.</FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> On Tuesday 04 December 2001 12:54, you =
wrote:</FONT>
<BR><FONT SIZE=3D2>> > Try this in an empty directory and let me =
know if this is a bug or a</FONT>
<BR><FONT SIZE=3D2>> > feature or an error on my part.</FONT>
<BR><FONT SIZE=3D2>> ></FONT>
<BR><FONT SIZE=3D2>> > Create several files of upper and lower =
case names:</FONT>
<BR><FONT SIZE=3D2>> ></FONT>
<BR><FONT SIZE=3D2>> > touch aaaa</FONT>
<BR><FONT SIZE=3D2>> > touch AAAA</FONT>
<BR><FONT SIZE=3D2>> > touch bbbb</FONT>
<BR><FONT SIZE=3D2>> > touch BBBB</FONT>
<BR><FONT SIZE=3D2>> > touch 1234</FONT>
<BR><FONT SIZE=3D2>> > touch .abcd</FONT>
<BR><FONT SIZE=3D2>> ></FONT>
<BR><FONT SIZE=3D2>> > Now use a regular expression to delete all =
files starting </FONT>
<BR><FONT SIZE=3D2>> with a lower case</FONT>
<BR><FONT SIZE=3D2>> > letter:</FONT>
<BR><FONT SIZE=3D2>> ></FONT>
<BR><FONT SIZE=3D2>> > rm [a-z]*</FONT>
<BR><FONT SIZE=3D2>> ></FONT>
<BR><FONT SIZE=3D2>> > When I was experimenting with this all of =
the files </FONT>
<BR><FONT SIZE=3D2>> starting with *any*</FONT>
<BR><FONT SIZE=3D2>> > alphabetic character were deleted. =
This was unexpected and </FONT>
<BR><FONT SIZE=3D2>> I'm not sure if</FONT>
<BR><FONT SIZE=3D2>> > I am misinterpreting the regular =
expression or if I am </FONT>
<BR><FONT SIZE=3D2>> delusional. Let me</FONT>
<BR><FONT SIZE=3D2>> > know what you get. FYI, I am using =
Red Hat Linux 7.2 so I would be</FONT>
<BR><FONT SIZE=3D2>> > interested if it's just me.</FONT>
<BR><FONT SIZE=3D2>> ></FONT>
<BR><FONT SIZE=3D2>> > Brian</FONT>
<BR><FONT SIZE=3D2>> > =
________________________________________________</FONT>
<BR><FONT SIZE=3D2>> > 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 </FONT>
<BR><FONT SIZE=3D2>> mail doesn't</FONT>
<BR><FONT SIZE=3D2>> > post to the list quickly and you use =
Netscape to write mail.</FONT>
<BR><FONT SIZE=3D2>> ></FONT>
<BR><FONT SIZE=3D2>> > PLUG-discuss mailing list - =
PLUG-discuss@lists.PLUG.phoenix.az.us</FONT>
<BR><FONT SIZE=3D2>> > <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></FONT>
<BR><FONT SIZE=3D2>> =
________________________________________________</FONT>
<BR><FONT SIZE=3D2>> 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 </FONT>
<BR><FONT SIZE=3D2>> mail doesn't post to the list quickly and you =
use Netscape to </FONT>
<BR><FONT SIZE=3D2>> write mail.</FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> PLUG-discuss mailing list - =
PLUG-discuss@lists.PLUG.phoenix.az.us</FONT>
<BR><FONT SIZE=3D2>> <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></FONT>
<BR><FONT SIZE=3D2>> </FONT>
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