this post was submitted on 18 Sep 2023
547 points (100.0% liked)

Linux

1259 readers
84 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago
MODERATORS
 
top 50 comments
sorted by: hot top controversial new old
[–] perviouslyiner@lemm.ee 126 points 1 year ago (2 children)
[–] bdonvr@thelemmy.club 45 points 1 year ago

It should be a crime to directly link XKCDs images without the corresponding page.

https://xkcd.com/1168/

I understand and sympathize with Rob on a spiritual level.

[–] Oha@lemmy.ohaa.xyz 65 points 1 year ago* (last edited 1 year ago) (3 children)

I remember it like this:
tar -extract ze file
and
tar -compress ze file

[–] Atemu@lemmy.ml 41 points 1 year ago

And also tar -the fuck is in this file

[–] exscape@kbin.social 15 points 1 year ago

z is for gz files only though, there are plenty of others. xf autodetects and works with all of them (with GNU tar att least).

[–] blackstrat@lemmy.fwgx.uk 38 points 1 year ago (1 children)

I hope whoever thought -l should mean "check links" instead of list has a special place in Hell set aside for them.

I have no idea what print a message if not all links are dumped even means.

[–] happyhippo@feddit.it 7 points 1 year ago

Was gonna say this. Why TF is list not -l as...everywhere else?

[–] aard@kyu.de 19 points 1 year ago (7 children)

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

[–] sebastiancarlos@lemmy.sdf.org 22 points 1 year ago* (last edited 1 year ago) (1 children)

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@kyu.de 16 points 1 year ago (2 children)

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.

[–] sebastiancarlos@lemmy.sdf.org 19 points 1 year ago (1 children)

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

[–] aard@kyu.de 9 points 1 year ago (6 children)

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

load more comments (6 replies)
load more comments (1 replies)
load more comments (6 replies)
[–] walthervonstolzing@lemmy.ml 17 points 1 year ago

Those are straightforward; it's the remaining 900 options that are confusing. I always need to look up --excludes and always get --directory wrong, somehow.

[–] Zacryon@feddit.de 17 points 1 year ago (1 children)

Ah yes, that's the linux community as I know it. There is one thing someone wants to achieve and dozens of ways to do it. ;)

[–] pineapplelover@lemm.ee 5 points 1 year ago

Nah I just use 7z

[–] miniu@programming.dev 16 points 1 year ago (8 children)

Why when explaining, giving examples of shell command are people so often providing shortened arguments. It makes it all seam like some random letters you have to remeber by heart. Instead of -x just write --extract. If in the end they endup using the tool so often they need to write it fast they'll check the shortcuts.

[–] catacomb 7 points 1 year ago* (last edited 1 year ago)

I don't even mind the shortened arguments too much, though it doesn't help. It's more that every example seems to smush them together into a string of letters.

I would have found

tar -x -f pics.tar ./pics

to be clearer when I was learning. There's plenty of commands which allow combining flags but every tar tutorial seems to do it from the beginning.

load more comments (7 replies)
[–] gibson@sopuli.xyz 12 points 1 year ago (1 children)

I don't think tar is actually hard, we are just in the time where we externalize more information into resources such as Google. Its the same reason why younger people don't remember routes by name or cardinal direction as much anymore.

side note: $ tldr is much better than man for just getting common stuff done.

[–] Aatube@kbin.social 8 points 1 year ago

Yes, but still tar options are kinda janky.

[–] d00phy@lemmy.ml 11 points 1 year ago (2 children)

The “-“ is often not necessary. I use it as a guide to see how long the person running tar has been using it.

Example:

tar -xf file.tar == tar xf file.tar

[–] fushuan@lemm.ee 5 points 1 year ago* (last edited 1 year ago)

They are functionally flags though and uniletter flags should be preceded by a '-', so I would still prefer to have the '-' written, because it conforms with the standard.

load more comments (1 replies)
[–] 520@kbin.social 9 points 1 year ago (2 children)

Simple:

tar -(whatever options you want here, my go to is xvzf or cvzf) archive-name.tar file/folder-to-compress

[–] cooopsspace@infosec.pub 17 points 1 year ago

Create ze vuking file

Xtraxt ze vuking file

[–] barkingspiders@infosec.pub 4 points 1 year ago (2 children)

tar can do things other than this?

load more comments (2 replies)
[–] arc@lemm.ee 7 points 1 year ago* (last edited 1 year ago) (3 children)

I know the basics off by heart. Not the hardest command syntax to learn all things considered.

The most annoying would be the growing collection of "uber commands" which are much more of a pain in the ass - aws, systemctl, docker, kubectl, npm, cargo, etc. - the executable has potentially dozens of subcommands, each of which has dozens of parameters.

load more comments (3 replies)
[–] Gamey@feddit.de 7 points 1 year ago (1 children)

I use Linux for years and still Google every time I have to use it!

[–] darklamer@lemmy.dbzer0.com 4 points 1 year ago (1 children)
[–] TheSaneWriter@lemmy.thesanewriter.com 4 points 1 year ago (1 children)

For me it's because I don't use it very often, mostly just archiving stuff every few months or so.

load more comments (1 replies)
[–] anteaters@feddit.de 7 points 1 year ago (15 children)

tar is just the worst shell command in existence. Why do people still bother with it?

[–] PuppyOSAndCoffee@lemmy.ml 6 points 1 year ago

Because it is faster to transport one big ass tar than 10k individual files, and compression is waste of time.

load more comments (14 replies)
[–] Blackmist@feddit.uk 6 points 1 year ago

Yes, that's all very well, but you'll still need to find that image the next time you want to use it.

[–] Anticorp@lemmy.ml 6 points 1 year ago (1 children)
[–] peppy@lemmy.ml 11 points 1 year ago* (last edited 1 year ago) (1 children)

lists the files in the archive. So you don't need to extract the entire archive. Useful for huge archives.

[–] Anticorp@lemmy.ml 5 points 1 year ago
[–] lvxferre@lemmy.ml 6 points 1 year ago* (last edited 1 year ago)

As a mnemonic I usually read the "f" as "fucking":

  • tar, compress fucking pics.tar.gz with junk from ./pics
  • tar, extract fucking pics.tar.gz

That's only for scripting though. Most of the time I simply right-click the directory or archive, and let Engrampa deal with it.

[–] freijon@feddit.ch 6 points 1 year ago
[–] tricoro@lemmy.ml 5 points 1 year ago

Thank you, I still don't understand.

[–] Ricaz@lemmy.ml 5 points 1 year ago (2 children)

I just have pack and extract functions in my shell RC files that look at file extensions and use the proper tool with proper arguments.

Wrote them 10 years ago and they've worked flawlessly ever since!

load more comments (2 replies)
[–] twelve12@lemmy.ml 5 points 1 year ago

dtrx is the way to do it. It's short for "do the right extraction", and it just works.

Also, all you have to remember for tar is "-xtract -zee -vucking -files" (extract the fucking files, but first letters only)

[–] nothacking@discuss.tchncs.de 4 points 1 year ago (1 children)

Just add -a for auto compression.

load more comments (1 replies)
load more comments
view more: next ›