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Re: copying a file with .bak extension

by Lotus1 (Curate)
on Nov 07, 2012 at 19:06 UTC ( #1002718=note: print w/replies, xml ) Need Help??

in reply to [SOLVED] copying a file with .bak extension

From How can I use Perl's i option from within a program? the -i option changes $^I which in turn changes how <> works. That means the magic only works inside a while loop that uses <>. Your code with -i added on for me made a .bak copy but cleared the original and printed to the command line. The following code does what you requested.

#!/perl -i.bak while(<>) { print; if(eof) { print "\n"; print "##Copyright (C) 2012 by firstName lastName\n" ; } }

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Re^2: copying a file with .bak extension
by Anonymous Monk on Nov 07, 2012 at 19:20 UTC

    Script works great thanks a lot! Is it possible to have the backup get modified instead of the original? Only the original gets the modification. Thanks again.

      You could use kennethk's updated solution but open the newly created backup in append mode instead of the original.

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Node Type: note [id://1002718]
[shmem]: karlgoethebier: of course
[shmem]: has there been any single day where nothing went wrong? not in my memory
[shmem]: discovered a fuel tank leakage at my second hand motorbike. Some bloke drove a screw too long through the fairing
[shmem]: hard to fix, and plans wrecked. And more... won't tell.
[shmem]: the leakage has been "fixed" with a piece of bycicle tube. Bleargh.
[karlgoethebier]: shmem: yes. my first ride tomorrow is questionable because of lumbago. shit
[shmem]: But! the bloke wasn't me, at least.

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