this post was submitted on 07 May 2025
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I feel very confident in my understanding of random 8 bit CPUs and their support chips, but asking me to center a div is like this xkcd.
I’ve never understood why people are so intimidated by tar
One reason is that tar supports both traditional style args "tar tf <filename.tar>" and unix-style args "tar -tf <filename.tar>" but there are subtle differences in how they work.
Literally the only time I’ve ever run into that is when I was trying to manipulate the path it extracted to. In 99% of cases I’m doing tf, xf, or cf plus flags for the compression type, etc, and those differences are irrelevant.
I used something recently where it wasn't possible to use the traditional-style args. I think it was a "diff", which meant I needed a "-f". It wasn't a big deal, but, occasionally it does happen.
I’m not saying it doesn’t happen. This thread started because I said I’ve never understood why people talk like tar is some indecipherable black magic. Common tasks are easy and there’s a man page for everything else.
I got tired of looking up the options for each possible combination of archiving + compression, so today I have a "magic" bash function that can extract almost any format.
Then for compressing, I only use
zip, which doesn't need any args other than the archive name and the thing you're compressing. It needs-rwhen recursing on dirs, but unlike "eXtract" and "Ze", that's a good mnemonic.It is "backwards" from some other commands
usually you run copy/rsync/link from source to destination, but with tar the destination (tarball) is specified before the source (directory/files).
That, and the flags not needing dashes always just throws me for a loop.
And the icing on the cake is that I don't use tar for tarring that often, so I lose all muscle memory (untaring a tgz or tar.bz2 is frequent enough that I can usually get that right at least...).
I almost never create a tarball, so I have to look up the syntax for that. Which is as simple as
man tar. But as far as extracting it almost couldn't be easier,tar xf <tarball>and call it a day. Or if you want to list the contents without extracting,tar tf <tarball>. Unless you're using an ancient version of tar, it will detect and handle whatever compression format you're using without you having to remember if you needzorJor whatever.tar -eXtract Ze Vucking File
Nobody wants to deliberately use the wrong compression type when extracting, so modern tar will figure out the compression itself if you just point it at a file. So
tar -xf filenameworks on almost anything. You don't need to remember which flag to use on a.tar.bz2file and which one for a.tar.xzfile.That doesn't give me a memorable mnemonic though.
tar -eXtract File
yeah, but then how am I supposed to remember "tar" ? :P
Tape ARchive -eXtract File
Thanks! This will definitely help me to remember it from now on.
Me 6 months from now:
Me in 6 months "
how to install winzip using terminal"It is sticky and pretty much ruins clothes.
tar --help
(joke)
YOU FOOL! THE ACTUAL COMMAND WAS
tar -?That dash looks an awful lot like an em-dash
Normal:
-Em:
–That reminds me of this Elle Cordova short: https://youtube.com/shorts/ky0YOo7_Y0o