Re: Count lines
Re: Count lines
- Subject: Re: Count lines
- From: "John W. Baxter" <email@hidden>
- Date: Fri, 12 Nov 2004 15:14:12 -0800
On 11/12/2004 14:04, "Paul Berkowitz" <email@hidden> wrote:
> which works perfectly. (In fact it gives the answer "1" when there's a Mac
> file with no LFs. whereas wc -l says the answer is "0", which is
> interesting.)
Very often, a last line effectively doesn't exist if it does not have its
trailing newline. And if the file as Mac line endings, it doesn't have any
newlines to the wc program, so it is entirely an unterminated last line.
(Lots of editors force the newline to be there, or can be configured to. In
the current BBEdit, for example, the relevant checkbox is in the "Text
Files: Saving" preference pane.)
/etc/crontab is one such file...you edit in a last line, forget to end it
with return (keystroke...which implants a newline), and it does nothing.
(Lots of the /etc/crontab files here at work end with a comment line saying
to put new stuff above this line...it doesn't matter whether that line
"exists" or not as far as the results are concerned.)
Perl until a few years ago had some interesting consequences of this
"problem"...it's been "fixed."
--John
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