• aard
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    191 year ago

    You also don’t need the dash for the short options.

    Also, if you’re compressing with bzip2 and have archives bigger than a few megabytes I’ll like you a lot more if you do it with --use-compress-prog=pbzip2

    • @sebastiancarlosOP
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      1 year ago

      You also don’t need the dash for the short options.

      True, but I refuse to entertain such a non-standard option format. It’s already enough to tolerate find’s.

      • aard
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        171 year ago

        Technically the notation with dashes is the non-standard one - the dash form is a GNU addition. A traditional tar on something like Solaris or HP-UX will throw an error if you try the dash notation.

        • @sebastiancarlosOP
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          251 year ago

          It’s also traditional to eat raw meat, but we discovered fire at some point.

          • aard
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            81 year ago

            Don’t try to take my raw ground pork away from me.

            • Lvxferre
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              31 year ago

              my raw ground pork away from me.

              Who are you, the Mett demon?
              Matt Damon made out of mett\

              (It works great with beef, too. Bonus points for the raw yolk over it. If not homemade though there’s literally one bar that I trust with this, salmonella is not fun.)

              • aard
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                21 year ago

                Not enough onions. Your average mettigel has better mett/onion ratio.

            • Leo
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              11 year ago

              That’s an audible “yuck” from me, man. Well done!

    • You also don’t need the dash for the short options.

      You know when you meet someone and you’re just like “oh boy, yeah, they’re evil. No humanity at all”

    • Programmer Belch
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      21 year ago

      I think the -j also compresses with bzip2 but I’m not sure if this is defined behavior or just a shortcut

      • @tony@lemmy.hoyle.me.uk
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        31 year ago

        There’s nothing technically wrong with using xjf rather than xzf, but it’ll bite you if you ever use a non-linux platform as it’s a GNU extension. I’m not even sure busybox tar supports it.

      • aard
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        31 year ago

        Yes, but I’m asking you to use pbzip. bzip at best utilizes one core, both for packing and unpacking. pbzip uses as many cores as IO bandwith allows - with standard SATA SSDs that’s typically around 30.

        pbzip can only utilize multiple cores if the archive was created with it as well.

          • Programmer Belch
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            31 year ago

            I’ve searched for it and xz also doesn’t use multithreading by default, you can change the program tar uses to compress by passing the -I option. For xz using all possible CPU threads:

            tar -cv -I 'xz -6 -T0' -f archive.tar.xz [list of directories]

            The number indicates the compression ratio, the higher the number, the more compressed the archive will be but it will cost more in terms of memory and processing time

            • TheSaneWriter
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              21 year ago

              Thanks for answering your own question, this is useful information.