Is there still a good, free file compression program?
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From: Steve Hix on 2 Apr 2010 21:29 In article <dog_cow-1270232416(a)macgui.com>, dog_cow(a)macgui.com (D Finnigan) wrote: > Robert Montgomery wrote: > > Is there still a good, free file compression program? > > > > bzip2 > gzip Both ship with OS X, available through Terminal.app.
From: Jeffrey Goldberg on 4 Apr 2010 01:01 Paul Sture wrote: > (Having said that, I've just started using rsync to backup changes and > that is faster still. rsync is great. I use it everywhere I can. I also use it for my backups on FreeBSD via sysutils/rsnapshot in ports. It makes use of an often overlooked feature of rsync, --link-dest. This makes it possible to have Time Machine like back-ups using rsync. > It also gets around incompatibilities between > FreeBSD tar and the GNU tar which comes with OS X) There is that. But I'm sure you know about archivers/gtar. Cheers, -j -- Jeffrey Goldberg http://goldmark.org/jeff/ I rarely read HTML or poorly quoting posts Reply-To address is valid
From: Walter Bushell on 10 Apr 2010 09:17 In article <81kfdtFcptU1(a)mid.individual.net>, Jeffrey Goldberg <nobody(a)goldmark.org> wrote: > Robert Montgomery wrote: > > > I think "Create Archive" wasn't effective > > enough for my project today because it my 13.5 meg files by only about > > 20 percent. > > One limitation of zip-like archivers is that they compress the > individual files first and then put them into an archive. If there is > redundancy between files, you get much better compression if you create > an archive of uncompressed files and then compress that archive. > > This is way I prefer things like .tar.gz or .tar.bz2. > > I'll bet someone has written a tool to do that from a Finder contextual > menu instead of having to learn command-line tools, but I've never > looked for it. > > Cheers, > > -j Disadvantage is that in the first method damage to any file does not necessarily ruin the entire package while the second will. -- A computer without Microsoft is like a chocolate cake without mustard.
From: M-M on 10 Apr 2010 10:51
In article <Pu6tn.608$z%6.282(a)edtnps83>, Robert Montgomery <info-block(a)northern-data-tech.net> wrote: > I think "Create Archive" wasn't effective > enough for my project today because it my 13.5 meg files by only about > 20 percent. It depends on what you are trying to compress. JPG and many movie files are already compressed and will not show much difference. -- m-m http://www.mhmyers.com |