Hi all,
sometimes it would be convenient on the command line to modify files in-place,
something like the -i option in perl. Perl first renames the original
file to a temporary
name or one with a specific extension appended and then writes stdout to a new
file with the old name and the original file attributes.
However, what I would find convenient, would be a 'delayed output operator' like
e.g. >|| that would first create an exclusive temporary (dot-)file in
the same directory
and then when all data is written [and maybe fsync()ed], it is renamed to the
actual given name and its attributes are set as expected for a new
file. Kind of like
it atomically shows up from nowhere at once after the old file is not
needed anymore,
and also nobody can access an incompletely written file by accident.
Is there already such a mechanism that's convenient to use?
Like that I could do
$ nl myfile | iconv -fL1 -tUTF-8 >||myfile
without having to type mv and rm.
Thanks,
Markus
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