On Tue, 31 May 2011 12:39:15 +0000 (UTC), Stuart Henderson <s...@spacehopper.org> wrote: > On 2011-05-31, Marian Hettwer <m...@kernel32.de> wrote: >> >> bsdtar from the FreeBSD project supports --exclude too. >> The OP could as well install gnu tar from packages. bsdtar doens't seem >> to exist... >> >> At least that's what I do at work (Debian, Solaris, OpenBSD env). >> It's a pain to walk around every nifty details of different unixes... > > The other way you can do it is just use posix-specified options and > not rely on vendor-specific extensions. But unfortunately many of the > vendors (*cough*gnu*cough*) don't make it clear which options are > standard and which are extensions... And, sadly, even some of the > BSD-derived OS have replaced a bunch of their standard tools with GNU.
You are right. One should rely on posix standards. However, reality most often proved that there will be GNU-ism all over the place. Time for a clean up task? Maybe. Going the easier road of just installing some gnu tools, why not? Talking about BSD specifics. I really like the possibility on my FreeBSD box with bsdtar to not specify -z or -j depending on the archived tar file. Instead, bsdtar just guesses for me what it'll be. "tar -xvf foo.tar.gz" or "tar -xvf foo.tar.bz2" is all the same to me. However, I really try hard not to get the hang of it. This would never work with any other tar I encountered... And obviously I wouldn't to this in a shellscript ;) Cheers, Marian
