Comments on: Create & Extract bz2 Archives in Mac OS X http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/ News, tips, software, reviews, and more for Mac OS X, iPhone, iPad Tue, 21 May 2013 16:47:46 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Dan in NH http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-460849 Dan in NH Wed, 05 Dec 2012 09:49:39 +0000 http://osxdaily.com/?p=30559#comment-460849 Original tar on xenix and unix didn't compress so you had to compress it first and then you would tar it. But under Linux and MAC OS X they use gtar even though it may be called tar. If gtar doesn't come with the UNIX the administrator has probably downloaded gnutools and compiled and installed them on their system so they can get the functinality of compressing the files during the tar process as well as all the other neat gnu utilities. tar -cvf files.tar * Creates uncompressed archive tar -cvzf files.tar.z * Creates compressed archive tar -cvjf files.tar.bz2 Creates bz2 compressed archive Original tar on xenix and unix didn’t compress so you had to compress it first and then you would tar it. But under Linux and MAC OS X they use gtar even though it may be called tar. If gtar doesn’t come with the UNIX the administrator has probably downloaded gnutools and compiled and installed them on their system so they can get the functinality of compressing the files during the tar process as well as all the other neat gnu utilities.

tar -cvf files.tar * Creates uncompressed archive
tar -cvzf files.tar.z * Creates compressed archive
tar -cvjf files.tar.bz2 Creates bz2 compressed archive

]]> By: Dan in NH http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-460845 Dan in NH Wed, 05 Dec 2012 09:41:53 +0000 http://osxdaily.com/?p=30559#comment-460845 You already compressed the file with the first command. It may actually make the file bigger with the second command. You already compressed the file with the first command. It may actually make the file bigger with the second command.

]]> By: Dan in NH http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-460842 Dan in NH Wed, 05 Dec 2012 09:36:04 +0000 http://osxdaily.com/?p=30559#comment-460842 tar -cvf files.tar * Creates uncompressed archive tar -cvzf files.tar.z * Creates compressed archive tar -cvjf files.tar.bz2 Creates bz2 compressed archive tar -cvf files.tar * Creates uncompressed archive
tar -cvzf files.tar.z * Creates compressed archive
tar -cvjf files.tar.bz2 Creates bz2 compressed archive

]]> By: Amigalander http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-393174 Amigalander Wed, 30 May 2012 17:33:01 +0000 http://osxdaily.com/?p=30559#comment-393174 What kind of file is CPT? You probably won't get any compression from zip or bzip if the file is already compressed, for example, a jpeg file. Try it on a text file. Both Apple tar and gnutar have zip type compression options built in. What kind of file is CPT? You probably won’t get any compression from zip or bzip if the file is already compressed, for example, a jpeg file. Try it on a text file.

Both Apple tar and gnutar have zip type compression options built in.

]]> By: Joshwah http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-393035 Joshwah Wed, 30 May 2012 09:09:24 +0000 http://osxdaily.com/?p=30559#comment-393035 my understanding in the above was tar doesn't really compress, it just bundles individual files together? my understanding in the above was tar doesn’t really compress, it just bundles individual files together?

]]> By: someguy http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-393029 someguy Wed, 30 May 2012 08:37:51 +0000 http://osxdaily.com/?p=30559#comment-393029 I apple's typical idiotic style /usr/bin/tar is not GNU tar. I recommend creating an alias in your bashrc so that when you type tar it calls /usr/bin/gnutar. This will fix many problems. I apple’s typical idiotic style /usr/bin/tar is not GNU tar. I recommend creating an alias in your bashrc so that when you type tar it calls /usr/bin/gnutar. This will fix many problems.

]]> By: Joshwah http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-393028 Joshwah Wed, 30 May 2012 08:35:09 +0000 http://osxdaily.com/?p=30559#comment-393028 i have never tried this and thought i would give it a shot.. i can get the end result, but there is zero compression happening, am i doning something wrong?? tar -cvzf CPT.tar.gz CPT bzip2 -z CPT.tar.gz Cheers i have never tried this and thought i would give it a shot.. i can get the end result, but there is zero compression happening, am i doning something wrong??

tar -cvzf CPT.tar.gz CPT
bzip2 -z CPT.tar.gz

Cheers

]]> By: Greg http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-392955 Greg Wed, 30 May 2012 04:00:53 +0000 http://osxdaily.com/?p=30559#comment-392955 Could you share a link to the wallpaper with the ocean and lightning? Thanks in advance! Could you share a link to the wallpaper with the ocean and lightning? Thanks in advance!

]]> By: constantine http://osxdaily.com/2012/05/29/create-extract-bz2-mac-os-x/#comment-392889 constantine Tue, 29 May 2012 23:47:55 +0000 http://osxdaily.com/?p=30559#comment-392889 tar -cfjv should do it tar -cfjv should do it

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