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Re^2: Need a little help appending lines

by shmem (Chancellor)
on Sep 11, 2007 at 22:47 UTC ( #638451=note: print w/replies, xml ) Need Help??


in reply to Re: Need a little help appending lines
in thread Need a little help appending lines

It's generally a bad idea to edit a file in place.

Is it? Why?

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}
  • Comment on Re^2: Need a little help appending lines

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Re^3: Need a little help appending lines
by macrobat (Beadle) on Sep 12, 2007 at 21:11 UTC
    It's a bad idea to edit a file in-place without a backup, let's just put it that way. Creating a separate output file from your source means your source *is* the backup. So moritz's point, a little less succinctly put, is, "Don't edit a file with important data unless you can undo any changes."

    (Or use version control.)
      Precaution against data loss is an entirely different thing, though related. But that concern doesn't justify marking in-place edits as bad idea, more so generally.

      Perl wouldn't have the -i switch if doing in-place edits wasn't a good idea. Generally speaking.

      --shmem

      _($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                                    /\_¯/(q    /
      ----------------------------  \__(m.====·.(_("always off the crowd"))."·
      ");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

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