[clug] Circumflex
Scott Ferguson
scott.ferguson.clug at gmail.com
Sun Aug 20 16:35:34 UTC 2017
On 21/08/17 02:15, Bryan Kilgallin (iiNet) via linux wrote:
> Thanks, Kim:
>
>> Regular expressions are confusing.
>
> I have been "tearing my hair out", trying to match the end of a line in
> a file. Say I want to select from a file, the line whose final character
> is `E'.
> But the following returns nil!
> grep 'E$' Sample.txt
less Sample.txt
testE
teste
tested
grep [E]$ Sample.txt
testE
(you didn't specify a capture group)
grep [d]$ Sample.txt
tested
grep [deE]$ Sample.txt
testE
teste
tested
This is why I suggested learning in a text editor to begin with - so you
can see what works and why.
Kind regards
--
A: Because we read from top to bottom, left to right.
Q: Why should I start my reply below the quoted text?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: The lost context.
Q: What makes top-posted replies harder to read than bottom-posted?
A: Yes.
Q: Should I trim down the quoted part of an email to which I'm reply
http://www.idallen.com/topposting.html
More information about the linux
mailing list