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From: dce@mips.UUCP (David Elliott)
Newsgroups: comp.unix.questions
Subject: Re: vi tips- summary number one
Message-ID: <679@quacky.UUCP>
Date: Tue, 15-Sep-87 10:14:16 EDT
Article-I.D.: quacky.679
Posted: Tue Sep 15 10:14:16 1987
Date-Received: Thu, 17-Sep-87 06:04:20 EDT
References: <601@augusta.UUCP> <8524@mimsy.UUCP> <2280@sphinx.uchicago.edu> <1741@tekgen.TEK.COM>
Reply-To: dce@quacky.UUCP (David Elliott)
Organization: MIPS Computer Systems, Sunnyvale, CA
Lines: 35
Keywords: vi tips, summary, good stuff, help with vi

In article <1741@tekgen.TEK.COM> jerryp@tekgen.TEK.COM (Jerry Peek) writes:
>In article <2280@sphinx.uchicago.edu> d757@sphinx.UUCP (Lawrence Lerner) writes:
>> !!    place results of command into file i.e. !!cat it.p will place
>>            the list of it.p in your file.
>
>Oops.  This *replaces the current line* with the contents of the it.p file.

Still not quite correct. !! replaces the current line with the result
of sending the line through a pipe to the given command. Also, ! is
orthogonal like 'd' and 'y'.

Examples:

1. We have a command called "uupath" that will take a "To:" or "Cc:"
line on the standard input, extract the mail address, change it
using the pathalias database, and print out the new line. Thus, I
can place my cursor on a "To:" line, type "!!uupath", and the mail
address gets fixed.

2. I can run a whole block of text through the tr command. Take the
following lines:

	a
	b
	c
	d

Place the cursor on the 'a' and type

	!3jtr 'a-z' 'A-Z'

and note that the 4 letters get changed to upper case.

-- 
David Elliott		{decvax,ucbvax,ihnp4}!decwrl!mips!dce