Date: Thu, 15 Nov 2007 12:06:43 -0800
From: Mike Cherba <[EMAIL PROTECTED]>
Interestingly enough, ! by itself on a line in vi doesn't have the
effect of a "force" command. It is a very different option.
!! <command>
executes <command> and replaces the line the cursor is on with the
output. so "!!ls" gives you the output of ls added into your file.
Actually, it goes even further: You can even feed part of the file you are
editing to a shell command, let the command do its work, and insert the
output back into the file.
Quoting from http://www.eng.hawaii.edu/Tutor/vi.html
For example, "!4jsort" will take five lines from the current cursor
position and execute sort.
A bit of a mind twister (and actually new to me). So I tried
!22jgrep -v someTerm
vi reported: "12 fewer lines" (those 12 out of 23 that matched someTerm)
((of course, there are other ways to remove those 12 matching lines in vi))
Interesting how far we drifted from the original 'lone !' ...
Mike, thanks for the links to other vi tips/documentations......Horst
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