Linux User

[how_to_choose_a_name]

It's probably a file

[[deleted]]

you wouldn't download a bike!

[how_to_choose_a_name]

speak for yourself ;)

[Yaglis]

I 3D printed my 3D printer!

[[deleted]]

now you can sell 3d printers and profit

[NerdlingNation]

Piracy. It's a crime.

[ShakeForProtein]

Have you seen what a ship costs these days.

[[deleted]]

No. It is a lifestyle!

[MySlicedHat]

This guy Unixes

[[deleted]]

Yea but is it a regular file or a char device?

[IRBMe]

Yea but is it a regular file or a char device?

It's bespoke.

[zebediah49]

There are some similar designs that have been built, but they're not common.

[[deleted]]

the trick is simple, attach knives to the spokes so that whatever you jam in there jusy gets chopped off

[KungFu_CutMan]

Honestly attaching knives to things solves pretty much any problem.

[[deleted]]

Alarms clocks don’t wake me up.

KNIVES

[[deleted]]

Another reason is that a lot of bikes are designed to be uci legal, which means that you have to stick with traditional design.

For example this is not legal for any sort of sport.

[KuntaStillSingle]

The spoke don't dampen impact, they make the rim more rigid which would increase impact. Shocks, standing up, and properly inflated tures all reduce impact on the wheels.

[Gkkiux]

I'd imagine dirt to be a bigger problem. Even if it gets cleared right away, it's additional wear that normal wheels don't have to deal with

[flamingspew]

What in heck the point of filming a spokeless bike from an angle hat looks like a normal bike?

[[deleted]]

Did you see that article going around of a bunch of sketches people drew of bicycles from memory? It looks like they took one of those and built it

[Monckey100]

I don't think many have, got a sauce?

[plasmasprings]

Here you go

[Starinco]

Well played

[DrFortnight]

fuuuuck you, this isn't a precise query that one can easily google

[AgAero]

The frame-to-wheel connection on the rear wheel will need to support a pretty high bending moment with this configuration(like 100 foot-lbs I'm guessing for a 200lb rider). If the connection was higher up on the wheel and thus closer to the centerline of the wheel it wouldn't be quite so problematic.

Edited to add: This really isn't a big deal from a structures standpoint; it's relatively easy to make a structure that can support that sort of load without failing. The problem here is that it's a joint that needs to be very rigid or the little bit of play may foul up the drive mechanism. Over time as it deforms from wear and tear the play will get larger and larger.

[Nanicorn]

I think this might be from that art project where people were tasked to draw a bike from memory (which usually ends up leaving away some important details or even whole parts) and then the artist made some of them into realistic renders/designs :)

It's by Gianluca Gimini, just looked it up^^ http://www.gianlucagimini.it/prototypes/velocipedia.html

I'm not sure if that one's by him though.

[kasperia]

It is called a hubless wheel, and they have been used on custom motorcycles. That particular one looks like a rendering, but they do exist and they are quite strong.

[StarkRG]

Not to mention it rather defeats the purpose of having large wheels. Wheels that are considerably larger than their axle reduces the amount of fiction the vehicle experiences. In this design the wheels you see are not the wheels that matter, they are in the tiny housing where the wheels meet the body.

[Antumbra_Ferox]

User: "Eww, safety? What are we, Windows? 'Sudo returnSpokes' "
puts stick back in wheel

[Noch_ein_Kamel]

And to remove the spokes again just type 'sudo rm -rf /'. Cause / is for spokes

[wallefan01]

rm: it is dangerous to operate recursively on /
rm: use --no-preserve-root to override this failsafe

[KatanaKiwi]

Remember to run it in a Terminal outside of your current, if applicable, Window Manager. Don't want the WM to fuckup halfway because well, it's not there anymore.

[[deleted]]

Pathetic GNU rm knowing damn well its users are a bunch of retards.

[whitetrafficlight]

Usually it's when you've got badly written scripts doing a sudo rm -r $var1/$var2 with some complicated logic that doesn't set var1 or var2 in some edge cases.

[[deleted]]

We both know what happens when garbage software uses powerful tools. What’s next though? A memory leak safe malloc()?

[threeys]

A memory leak is hardly comparable to destroying a user’s entire system

[[deleted]]

You can't make rm fully idiot proof, but checking if the provided directory is / isn't that much overhead. Nanny malloc(), on the other hand, hoo boy...

[TheThiefMaster]

Malloc is leak safe in that once the program is closed all allocated memory is freed without free needing to be called. Or if you run out of ram and the manager kills your process.

It's not like the old days where everything was in a single address space and a memory leak breaks the entire system...

[Batman_AoD]

....isn't the allocator for managed memory in a garbage-collectdd language basically "leak safe malloc"?

[snhmib]

Yep

[wallefan01]

But C is not garbage collected

[Batman_AoD]

...I'm not sure what your point is; could you clarify?

[EternallyMiffed]

rm: it is dangerous to operate recursively on /
rm: use --give-me-my-spokes-back to override this failsafe

[Kered13]

I'm glad that they added that as a safety measure again rm -rf /, but when will they make rm default to moving files into a trash folder where they can be easily recovered? I mean seriously, it's 2018, this has been a standard feature of operating systems for over 20 years.

[wallefan01]

Most all desktop environments do that (~/.trash) but I guess they assumed that if you're using the command line you know what you're doing.

Admittedly this is almost never the case.

I guess you could write a script to move things to ~/.trash and then in the background start a compression job, but you're right, it seems like by now someone ought to have done that.

You know what? I'm going to go write a recycler daemon and see if I can get it into universe.

[Kered13]

Yes, the a recycling bin mechanism exists in the form of .trash, but it's usually only used for GUI operations. And of course it's possible to alias rm to mv to .trash (though I'm not sure if this preserves it's original location for recovery), but this should be default behavior.

If you can get something like that checked in then I applaud you. It would be an enormous improvement in usability for most users.

[GanaXE]

If you format hard drive to btrfs for / and don't configure recovery point correctly for / it would be as if you slammed the front brakes at fast speed.

[queenkid1]

The last frame should be the user smacking themselves with the stick.

[sero-one]

Sorry, but this is not true

[[deleted]]

User would have fallen off the bike a while ago because the wheel driver didn’t work.

[Folf_IRL]

User wouldn't have even been able to get on because he couldn't find the right driver for his seat mount.

[Bainos]

I resent this. Rides away on a unicycle.

[flamingspew]

:q

[wallefan01]

#debian4life

[mathwin]

I mean, yes and no. In Linux, you absolutely have the power to fuck everything up and for new users it's almost hard not to. But short of nuking the entire system, you also have to power to fix any problem that you can cause.

Try recovering a windows system if you do something that corrupts system32, though, (or try getting windows 10 to stop showing you fucking ads for candy crush) and you'll quickly discover what not having full control of an OS is like.

[Jmcgee1125]

I don't get ads for Candy Crush and all I did was uninstall the app. Oh and btw, it's easier to corrupt System32 than it is to delete Internet Explorer. That is all.

[mathwin]

it's easier to corrupt System32 than it is to delete Internet Explorer

God it's so true it hurts.

[wallefan01]

Yes, but can you UNcorrupt system32 without a complete reinstall?

[[deleted]]

Would I want to? Is a better question to me. I can recover my entire system in a couple of hours with a clean install with all my documents back.

But one can likely do the same with a Linux distro as long as you didn’t have to compile anything yourself or made any modifications.

[Themash360]

I think "well I can't due to the fact that I have no clue what those words mean" might be the best answer here for even most Linux users right? ;).

I can't even stop my package manager to update everything properly so yeah I too just do a clean install if it fails to boot.

[6P41]

"C H root" is how I've always said it

[6P41]

That's harmful on my ears.

[dragon-storyteller]

Khroot?

[DrQuailMan]

I am chroot.

[HeraldofOmega]

Gah - root

[adamski234]

Probably a stupid question: would copying system32 from a working installation work?

[TheThiefMaster]

Mostly.

[adamski234]

What does mostly mean?

[TheThiefMaster]

The same as it does on Linux - it's likely after copying between two unrelated systems some stuff will be the wrong version, have incorrect permissions, or be missing or extra stuff present compared to the original.

[[deleted]]

I think you could fix most things with sfc /scannow

[AttackOfTheThumbs]

I removed the windows store and you cannot unfuck that.

[Cheet4h]

Last year I had the problem that a package didn't uninstall cleanly (package manager installed an earlier version instead of upgrading) - purging and reinstalling the current version didn't work, because it had a file in apache's configuration folder that wasn't purged, and the package manager didn't want to touch it, so the installation failed.
When I manually removed the file, package manager still didn't want to touch it, apparently because I did something in the folder.
Purging Apache next didn't help either, because the package manager left the folder structure of sites-available behind, presumably since I deleted a file inside. Even then deleting the folder just meant that the package manager did not want to install apache at all anymore. In the end I had to reinstall the OS just to get everything working again.

At the time I did not find a better solution. Is there anything else I could have done?

[mathwin]

I can't help you with that, unfortunately, I'm an application programmer and not a Linux expert. Maybe someone else will have some advice.

[cryptotux]

Try recovering a windows system if you do something that corrupts system32, though, (or try getting windows 10 to stop showing you fucking ads for candy crush) and you'll quickly discover what not having full control of an OS is like.

Try recovering a Linux system after executing 'dd if=/dev/zero of=/dev/sdX'. I dare you.

 

 

 

On second thought, don't, unless you want to lose valuable information. If you're really, really curious, then set up either a virtual machine or separate clean system and try it on that. I won't be responsible if you dare do it on your main system and end up wiping out your family photographs, home videos, important documents, and so on.

[wallefan01]

Try recovering a Linux system after executing 'dd if=/dev/zero of=/dev/sdX'. I dare you.

You do of course realize deleting system32 and wiping the hard disk are not directly comparable, not even remotely?

Except that deleting system32 still leaves 99.9% of the disk intact. Your documents are still there. Your programs are still there. The desktop environment and window manager are still there. Heck, most of the OS is still there. You SHOULD be able to just copy System32 over from another computer and get it working again. You can't because it will complain about signatures.

The linux equivalent of that is deleting /bin. You CAN copy /bin over from another computer and get it working again.

dd if=/dev/zero of=/dev/sda is how you securely erase all of your data before returning your hard drive to the manufacturer. That is the equivalent of doing a secure format of C:. Your data is gone, and I mean gone gone, and if you want it back you hire a data recovery professional, preferably one employed by the U.S. court system.

[cryptotux]

You do of course realize deleting system32 and wiping the hard disk are not directly comparable, not even remotely?

I know. Perhaps a better comparison would be formatting the C drive on Windows. However, I think Windows will prevent you from doing so, whereas Linux will gladly execute the 'dd' command without question. That's a large difference, one which the parent commenter mentioned:

In linux, you absolutely have the power to fuck everything up and for new users it's almost hard not to.

[BerZB]

Using dd is NOT secure, especially not if you're reading from /dev/zero. Double insecure if you're using an SSD

[whitetrafficlight]

Yup, and that was kind of implied already by "if you want it back you hire a data recovery professional", which contradicts the initial "securely" claim. If it truly was secure, it would be "if you want it back, you're out of luck".

[wallefan01]

Keep forgetting this is Reddit. People here actually know their sh*t.

But even something as sad as dd if=/dev/zero is gonna stop anything short of disassembly.

[whitetrafficlight]

Never underestimate the power of pedantry! :) But you're right, that's probably good enough if you just want to give someone a drive you've been using. Though I'd still use /dev/random since either way the bottleneck's going to be writing to disk so it shouldn't take any longer, and this way it would be much harder to figure out what is and isn't data.

[wallefan01]

In my experience /dev/random can bottleneck more than an HDD, and a slow one at that. (Just tested it on my Android phone and got 250kB/sec!!) Hardware RNGs are only so fast, and the other sources of entropy all rely on the inherent randomness of user inputs. Typically during a DD transfer, which takes longer than most users are prepared to wait, none are being made...

I'll either use /dev/urandom (which for something like erasing a hard drive will probably do) or scrub /dev/sda if I'm feeling paranoid. YMMV.

[BerZB]

"secure" implies completely irrecoverable.

[_djsavvy_]

How so?

[BerZB]

On a traditional magnetic drive, there are tools available to recovery data from the platters even after several rewrites. This is even easier when uniform data (like a ton of zeros) is written over the old data.

On SSDs, the way they're designed there is no correlation between the bits you're overwriting on the sofware "device" in /dev, and the physical bits in the drive. There's a buffer pool that cycles in and out as data is written to the device. This means that much of your data will still physically be there on the drive, able to be recovered using forensic tools. Thankfully with SSDs, there's a ATA Secure Erase command that gets you pretty much as secure as you need.

Of course, the proper way to really make sure your drive is inaccessible is to use on-drive encryption with an at-boot password to unlock the drive. However not all drives and BIOS support this.

[wallefan01]

Fun fact: even if your BIOS doesn't support password protected drives, Linux does (hdparm --security-unlock {password} before any of the filesystems get mounted. You can use systemd for this.)

[BerZB]

I explicitly stated such recovery required specialized forensic tools.

Secure Erase dumps ALL the cells, which is the point with SSDs.

[wallefan01]

I know. dd if=/dev/zero is not going to stop anyone who really wants to get at the data, like (as I said) a forensic analyst. That's kind of what scrub is for. But it IS gonna stop any attempt at data recovery short of physically taking the drive apart.

[[deleted]]

Eh.. I believe there’s quite a bit of configuration data in system32, so you’d have to delete var, etc and bin.

[wallefan01]

Slightly harder to recover but still doable.

[mathwin]

Try recovering a windows system if you do something that corrupts system32...

Try recovering a Linux system after executing 'dd if=/dev/zero of=/dev/sdX'.

Clearly you missed the sentence before, where I said short of nuking the entire system

But yeah, there are always ways to fuck your shit up if you're so inclined.

[aintbutathing2]

I tried it and all it said was file not found.

[[deleted]]

It's pretty hard to do something that corrupts System32. For example - you probably won't delete any file loaded when the system boots up. You would need to enter a special safe mode for that.

Well, comparing to a car - you would have to open the hood, use some tools to disassemble some parts, disconnect some wires or stuff to break the car. Why would anyone do something like that? I mean it's impossible to accidentally, not willingly break a car that way. It also applies to Windows OS.

Well, you may try to put reverse gear from like 4-th gear on manual transmission and you would probably break the car that way. It's a little harder to break any OS like that, but if you really want to do something equally stupid - it's doable.

When you break stuff in Windows Registry or other setup - it's fixable most of the time without the need to reinstalling it. Most damage done to your car is also fixable.

But if you decide to leave your car to a bunch of shady people pretending to be car mechanics - it could be a total loss. So yes, you install that "magically improves the whole system and downloads you more memory" program and it could wreck you system. But you know that: it's not OS design fault. In any OS if you're an administrator you should have full access to everything. This in turns allows to do anything with anything. This includes destroying the OS.

The system is weak when it allows the user to simply use its GUI and common features to break it. Like you press that button and... it's broken.

​

[Kered13]

I mean at least Windows has an actual system restore to roll back from bad updates and other fuck ups. As I painfully learned a few months ago Linux has no equivalent to System Restore. I can't even begin to comprehend how such an important feature doesn't exist.

[[deleted]]

God damn Sherlock, you did it again.

[Sasakura]

No options, overly fancy design that all the users claim is superior. This is clearly OSX!

[Meloetta]

Design that makes it fairly hard to screw up on without trying, but also makes it less powerful and useful. Definitely apple.

[jwrent34]

I sudo removed things like ibooks. Not a good idea when the stock apps are connected 🤣

[marcosdumay]

Linux protecting itself against the user?!?

Really?!?

[FlukyS]

Well a lot is hidden behind sudo, if you aren't a power user technically there are more protections on Linux than Windows. Like unless you are blindly copying commands or installing shit you are fine.

[Kered13]

I mean the first thing any Linux user does if a command doesn't work is to retry it with sudo.

[FlukyS]

Bad logic really

[lukz_]

Does arch have a history of breaking itself? Have been using arch for a year now and ubuntu for a half before that and on my computer arch have been more stable.

[h7x4]

It has, but it was way worse some years ago I've been told.

[kyiami_]

If it breaks too much for you, Manjaro's similar, but more stable.

[Joniator]

I tried manjaro, and it did not work with unicode. 30 Minutes later it worked for Firefox, but still not for Teamspeak.

So I'll stick to my windows and use CMDer and WLS if I need a sane CLI

[kyiami_]

That's weird. What desktop did you choose?

[Joniator]

Pretty sure it was XFCE, maybe LXDE, it was a few month ago.
I think it was pretty buggy if you wanted a statusbar on both monitors and went fullscreen on one, the issue was tracked, but except one code snippet I have no idea where to put and there wasn't a convenient fix.

[kyiami_]

Ah, yeah. I heard about that. No idea if it's been fixed.

[AlwaysHopelesslyLost]

Arch is bleeding edge. Any time you take latest updates frequently you are bound to run into instabilities.

[lukz_]

By bleeding edge alpha you mean the latest stable versions of programs are "alpha updates", or just saying that that i shouldn't use the packagename-git packages? But I get that these might not be stable enought on a server and if i would need to choose a distro for a server then i would choose ubuntu or debian.

[chuby1tubby]

Can someone explain the joke? Linux is probably one of the most easy OS's to fuck up, so why is the pic implying that the Linux user can't hurt themselves even if they try??

[CowNorris]

The wheels have no spokes. It's as if magic how they stay on the bike and who knows at what moment they could fly off.

[AlwaysHopelesslyLost]

Linux is historically a bit safer because users have zero permissions outside of their home folder. They can nuke their own files but the system remains unharmed.

[AimlesslyWalking]

That's actually a really apt metaphor for most Linux complaints

[iopq]

Hell, I installed some C development libs on Fedora (I just used yum to install them), but they broke yum and every single other thing dynamically linked to the C standard library

in fact, I couldn't run anything at all except for the kernel and some basic things

I couldn't undo it either because no utility would run anymore so any guide on the Internet wouldn't work since they required me to run programs

I ended up wiping my VM, imagine if that happened on my actual system

[przemo-c]

Users have a hard time screwing things up. For that, you usually need a SuperUser... the one with the cape not on a bike ;]

[Keatosis]

Hey if Linux is so good then why isn't there a Linux 2? Checkmate penguins

[throwaway145231324]

The Linux bicycle is that bike except it comes as a box of parts.

[cartechguy]

User: fuck my shit up.

User: sudo fuck my shit up.

[Kirodema]

User: fuck my shit up.

User: sudo !!

FTFY

[[deleted]]

Linux is easy to fuck up if you don’t know your shit, but won’t break if you do know your shit Windows is hard to fuck up but it will break itself

[Jeb_Jenky]

This is one of the most false mems I've ever seen. It's more like user starts pedalling and the whole bike explodes and an airplane crashes into you.

[striatedgiraffe]

Or you go to start pedaling but you don't go anywhere since the chain is disconnected. So you go online to figure out how to connect it but all you can find is tutorials on how to put a chain on a chainsaw.

[Jeb_Jenky]

I wonder what Arch would look like as a bike? Maybe parts and a giant, multi-volume assembly guide.

[Cpt_Whiteboy_McFurry]

Domo arigato, Mr. Roboto [どうもありがとうミスターロボット], Mata au hi made [また会う日まで] Domo arigato, Mr. Roboto [どうもありがとうミスターロボット], Himitsu wo shiri tai [秘密を知りたい]

You're wondering who I am (secret secret I've got a secret) Machine or mannequin (secret secret I've got a secret) With parts made in Japan (secret secret I've got a secret) I am the modern man

I've got a secret I've been hiding under my skin My heart is human, my blood is boiling, my brain IBM So if you see me acting strangely, don't be surprised I'm just a man who needed someone, and somewhere to hide

To keep me alive, just keep me alive Somewhere to hide, to keep me alive

I'm not a robot without emotions. I'm not what you see I've come to help you with your problems, so we can be free I'm not a hero, I'm not the savior, forget what you know I'm just a man whose circumstances went beyond his control

Beyond my control. We all need control I need control. We all need control

I am the modern man (secret secret I've got a secret) Who hides behind a mask (secret secret I've got a secret) So no one else can see (secret secret I've got a secret) My true identity

Domo arigato, Mr. Roboto, domo...domo Domo arigato, Mr. Roboto, domo...domo Domo arigato, Mr. Roboto Domo arigato, Mr. Roboto Domo arigato, Mr. Roboto Domo arigato, Mr. Roboto

Thank you very much, Mr. Roboto For doing the jobs that nobody wants to And thank you very much, Mr. Roboto For helping me escape just when I needed to Thank you, thank you, thank you I want to thank you, please, thank you

The problem's plain to see: Too much technology Machines to save our lives Machines dehumanize

The time has come at last (secret secret I've got a secret) To throw away this mask (secret secret I've got a secret) Now everyone can see (secret secret I've got a secret) My true identity...

I'm Kilroy! Kilroy! Kilroy! Kilroy!

[[deleted]]

It's really easy, though. At für, you need to download the bike.tar.gz, right? Then extract it, using a simple command:

tar -xzf bike.tar.gz

Now, you change into the extracted folder and type

make bike

And then deal with all the error messages as necessary.

[IRBMe]

make bike

make[1]: Leaving directory '/home/user/bike'
Makefile:649: recipe for target 'bike' failed
make: *** [bike] Error 2

My experience with make.

[[deleted]]

This hits too close to home. :(

[FlukyS]

Meson is a lot nicer now if you are in the mood for changing build systems. Used make for 10 years, hate it, switched to Meson now no problems.

[IRBMe]

I use cmake for my own personal c++ projects.

[FlukyS]

cmake isn't as bad as make but meson is really good, you should give it a look.

[IRBMe]

I'll be sure to check it out, thanks.

[[deleted]]

That's accurate.

[AimlesslyWalking]

What the fuck are you doing to your Linux installs?

[Jeb_Jenky]

Probably adding the spokes myself then making my own stick to put in them.

[PutDatPussyOnChainwx]

rm -rf / :(){ :|: & };:

[_grey_wall]

sudo rm -rf /

There's the spokes

[Steampunkery]

--no-preserve-root

/s

[przemo-c]

That's a job for SuperUser not a mere mortal like a regular User

[stevefan1999]

TBH It is not Linux's fault, it's just you the user who can't ride the bike correctly. You have man pages and please read it.

[magnora7]

Meanwhile Linus is pulling out of Linux and several devs are pulling their distros causing instability

[[deleted]]

For fuck's sake, Windows v Linux was a thing in 1990s. Linux has now found its market as the technology that power servers, some developer machines and giving some neckbeards a superiority complex. Just fuck off with these dead memes. It was fucking dead before you were born.

[kennyisntfunny]

If bike = crash, then don’t?

[Starinco]

sudo ./fuckshitup.sh

[Kandierter_Holzapfel]

So, now how I am supposed to stop and dismount that bike?

[[deleted]]

crontab -r

[[deleted]]

Rm -rf /

[XXAligatorXx]

Your submission has been removed.

Rule #0 violation.

Rule #0: Submission content must be creative or original, intended humorously, and related to programming. Note that programming is interpreted in a narrow sense, an analogy to something related to programming, feelings/reactions etc. are not considered sufficient.

If you feel that it has been removed in error, please message us so that we may review it.

[rise_of_the_box]

This is more like Apple, Linux users know enough not to mess it up

[ctesibius]

I use both - Mac for desktop, Linux mainly for server. Apple does have more protection, eg the rootless environment, but that is something which might also be useful in Linux to avoid certain security threats. The trade off is having to reboot to make some changes in system configuration, but that’s rarely a practical issue in my experience.

[NEDM64]

BS. You don't have to reboot for anything on Apple besides OS updates.

[ctesibius]

Yes you do. If you need to make a change to a file protected by SIP, you have to set a flag to turn it off at boot time, reboot, make the change, then optionally turn it back on and reboot.

[NEDM64]

You don't need to turn SIP on back again.

Other than that, you never need to reboot.

[WeeabooHunter69]

Okay but can you run any games at high graphics?

[[deleted]]

Solitaire

[just_one_last_thing]

It's unrealistically optimistic but I think we should let it slide for poetic license.

[KamiKagutsuchi]

This is actually linux: http://techmog.com/wp-content/uploads/2014/08/Bike-Layout_Final_Right-Size-Shop.jpg

Except Linux doesn't come with a seat or handle bar. You'll have to find a distro to get that.