Article View: comp.sys.mac
Article #18155Re: MPW Shell question
From: David W. Berry
Date: Sat, 15 Aug 1987 23:07
Date: Sat, 15 Aug 1987 23:07
43 lines
2368 bytes
2368 bytes
In article <4021@oberon.USC.EDU> barad@othello.usc.edu () writes:
>In MPW Shell, I am trying to select the first line in a file
>(including the cr) and remove that line and all copies of that line.
>The way I tried in MPW shell is the following:
>
>Find /(?=dn)@1/
>Replace -c inf /{@1}/ ''
>
>The "d" is really the delta, and the "=" is the curvy equal sign, and
>the "inf" is the infinity sign.
>
>I would think that the 1st line would find (and select) the first line
>from the cursor point (that contains at least 1 char) and the cr. It
>should assign this to the shell variable @1. Then, I will replace all
Here's the heart of the misunderstanding. The first line won't get
stuck into a shell variable at all, but will rather be stored away
somewhere in the actual command executing and not be carried forward
to the replace.
>occurances of the value of @1 with nothing. This doesn't work. I do
>know that:
I would try something like:
Cut 1 # Cut out line one
Open -t -n Tmp.File # Kludge to paste into command
Paste *:inf # replace contents with line
Target OriginalFile # go back to real file
Find * # start at line one
Replace -c inf del/*`cat Tmp.File`inf/:!1 '' # get rid of lines
Delete Tmp.File
Where funny characters are:
* Bullet = option-8
inf Infinity = option-5
del Delta = option-j
Note that the Replace command finds an affected line and extends
the selection to exist from the start of the current selection
to one character beyond it. That makes up for the fact that the
cat on the command line will get the newline stripped out.
--
David W. Berry
dwb@well.uucp dwb@Delphi
dwb@apple.com 293-0752@408.MaBell
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!rutgers!ucla-cs!zen!ucbvax!hplabs!pyramid!voder!apple!dwb From: dwb@apple.UUCP (David W. Berry) Newsgroups: comp.sys.mac Subject: Re: MPW Shell question Message-ID: <1482@apple.UUCP> Date: Sat, 15-Aug-87 19:07:08 EDT Article-I.D.: apple.1482 Posted: Sat Aug 15 19:07:08 1987 Date-Received: Sun, 16-Aug-87 13:07:19 EDT References: <4021@oberon.USC.EDU> Reply-To: dwb@apple.UUCP (David W. Berry) Distribution: world Organization: Apple Computer Inc., Cupertino, USA Lines: 43 Keywords: MPW Shell, regular expressions