Date: Wed, 4 May 2011 15:24:58 +0100 From: Chris Rees <utisoft@gmail.com> To: freebsd-questions@freebsd.org Cc: kron24 <kron24@gmail.com>, Modulok <modulok@gmail.com> Subject: Re: Piping find into tar... Message-ID: <BANLkTimDAirH773b3caD4uOPenWwm%2BjZ=w@mail.gmail.com> In-Reply-To: <44r58ey4xl.fsf@lowell-desk.lan> References: <BANLkTi=-90CJk41um5A3J-iSEVUCv1Viqg@mail.gmail.com> <BANLkTikxNouAi7SQ0xEEK%2BjGFZzRH=r3TQ@mail.gmail.com> <BANLkTike2NRiY33p1epo0hiz_SbgvGma6g@mail.gmail.com> <BANLkTikuSZLCJ4tbvqnJ22_PYZ8=DnEE=w@mail.gmail.com> <4DC13794.6010004@gmail.com> <44r58ey4xl.fsf@lowell-desk.lan>
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On 4 May 2011 14:25, "Lowell Gilbert" < freebsd-questions-local@be-well.ilk.org> wrote: > > kron24 <kron24@gmail.com> writes: > > > Dne 4.5.2011 11:42, Modulok napsal(a): > >>>> By the way, in reference to the commands above the -j option is for > >> bzip2, so the extension should be .tbz o_O > >> > >> Thanks everyone! I went with the following, because it works regardless of > >> space characters in filenames. (Thanks for the correction on the extenion. It > >> should indeed be 'tbz' when using the 'j' flag.) > >> > >> find -E . -regex '.*\.txt$' -print0 | xargs -0 tar -cjf result.tbz > > > > When the amount of files is huge then tar will be invoked twice > > or more. Thus result.tbz will contain just files from the last invocation. > > Yes, xargs isn't part of the solution for this case unless you use the > update mode to tar, which will be much slower. However, tar can read > the file list from a file, which can be stdin if you want. The > equivalent of the above command would be something like: > > find -E . -regex '.*\.txt$' -print0 | tar --null -T - -cjf result.tbz > > > I consider cpio a better option here. > > The old ways still work very well. > > But it's worth noting that on FreeBSD these days, cpio(1) and tar(1) are > both implemented on the same library, so there are very few things that > one can do but the other cannot. > Why on Earth are people still fooling about contorting tar into weird shapes???? The great thing about pax is It's a drop in replacement for cpio that makes tar archives; It's designed to be used with find! Chris
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