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•Re: Put your inplace-edit backup files into a subdir

by merlyn (Sage)
on Apr 21, 2003 at 06:08 UTC ( [id://251940]=note: print w/replies, xml ) Need Help??


in reply to Put your inplace-edit backup files into a subdir

I've had more than one person write to me in the day since I posted this snippet to say "Randal, you forgot the -i! It's not an in-place edit without that!".

No, I didn't. Setting $^I is the programmatic equivalent to setting -i on the command-line.

Cool, eh?

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

  • Comment on •Re: Put your inplace-edit backup files into a subdir

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Re^2: Put your inplace-edit backup files into a subdir
by Aristotle (Chancellor) on Apr 21, 2003 at 12:05 UTC
    I was personally puzzled at what $^T is for a moment, though I knew about $^I. So the simple form would be 
    mkdir bak/ ; perl -pi'bak/*' -e 's/foo/bar/g' file1 file2 file3 ...

    [download]
    Or 
    perl -pi'bak/*' -e 'BEGIN { mkdir($^I =~ m!(.*/)!) } s/foo/bar/g' file
+1 file2 file3 ...

    [download]
    Or maybe even 
    perl -MFile::Path -pi'bak/*' -e 'BEGIN { mkpath [ $^I =~ m!(.*/)! ] } 
+s/foo/bar/g' file1 file2 file3 ...

    [download]
    *grin*

    Makeshifts last the longest.

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