Re: / tmp
Thanks, all, for the corrections on my -i fixation. I've been doing that since SunOS 2 and it definitely helped me way back then.
In getting old enough to cargo cult MYSELF? Guess that explains all the gray hair!
797 posts • joined 19 Apr 2017
Aye! I've shot my toes off in much the same way.
Tip: put a zero length file called -i in the root directory. It will force a rampaging rm -rf back to interactive mode. Then the trick to to not hit 'y' when prompted...
It's a zero length file, but at least once has covered my entire posterior.
I think there is some sort of physical law that says something to the effect of, "If you're in deep ship when working on a production system, you will not find the required manual in your documentation wall. Nor will the requisite man pages be installed. After the disaster, you will find the resources with ease."
My fault using "order of battle"; it's probably uncommon outside of military and law enforcement circles.
I learned my electronics in the military. OOB refers to the command authority, structure, number of people, disposition of personnel, and equipment of a military or police force. No matter how peaceful your local coppers are, they think in these terms.
Personally I don't think the solution to US problems is to refund the police, but let's stop giving them military-grade kit and hiring guys who think they're freaking Rambo. If you step on the street with enough weapons to whack everyone in a block's radius you are sending a message...
I definitely cannot speak for conditions across the US, but the five counties and cites around me all have had UAS integrated into their order of battle for years. With a common APCO P.25 radio infrastructure and officers co-locating at each others' emergency communication centers, they do a reasonably good job of sharing actionable information. UAS are indeed used to find lost people and assess fires, and have done so successfully. The police do UAS demos at schools all the time to show students what can and cannot be done with the platforms, and of course to recruit I suppose.
So why does local law enforcement need a Predator? When they already have UAS up (I've seen 'em)? They probably don't. A time of crisis in not an appropriate moment for integrating a new system into your order of battle.
So there are three reasons: ISR for the federal forces in the ground, intimidate the local police, and to send a big f__k you to the governor of a state. The latter makes sense only if the national leader is prone to temper tantrums. Oh, wait...
Meanwhile, in a particular research lab I worked in, every.single.fscking.resistor or other component would get entered individually into an ERP database, tracked, and "dispensed" as needed. This makes sense for a computer or $50,000 spectrum analyzer. But a $0.005 discrete?
No ship! Buy a reel of 5,000 resistors? You get 5,000 manual entries in ERP. Care to guess how many entries are jacked? That's how your $0.005 component becomes $2-5. Granted, we were a lab instead of a manufacturer, but that's unreal.
On top of this, I'd frequently get called in the carpet to justify things such as, "why does this design have four precision resistors and several hundred other resistors?" My reply would be along the lines of "We've got five guys in here, at 150 bucks an hour, arguing over six cents on a $45k piece of equipment. What are you smoking? I want some...'
Any they wonder why the competent design engineers left, followed by the clients
Splitting a hair here, I've not seen any serious claims the virus "originated" in a lab, meaning that it's a bioweapon. The claims are more to the point that BSL-4 labs research nasty crap and some may have escaped.
Supposedly Chinese labs have leaked in the past. The Russians offed a bunch of people at Mayak with an Anthrax screwup (that was a BWC violation...). The US Army's Ft Derrick lab was shut down by CDC last year, only got it's approval for restart this March. Sometimes s..t happens. When the nitrogenous waste hits the rotating aspirator, it's time to check your ego at the door and figure out what the hell happened ... so you can share information on how to prevent another occurrence with everyone else doing similar work
Bad intakes? Close but not quite.
Top speed of the B1-A prototypes were about 2.1 to 2.3 Mach at high altitude. B1-B, though, added the requirement of low level penetration and reduced RCS, as the USAF realized high speed / high altitude was useless against contemporary air defense systems. Hence the abandonment of the XB-70 (3+ Mach) bomber and the 2+ Mach B-58 Hustler, which was removed from service all the way back in 1970.
Why is the B1-B slower than -1A? For RCS reduction, the B1-B ended up with fixed vice variable intake ramps instead of the variable ramps of -1A and a serpentine duct that prevents any direct line of sight to the fan face. Limits speed to something like 1.2 Mach... But then, it can go 0.92 Mach on the deck, which is damned impressive. Above 1.2Mach, supposedly the intake serpentine can incur damage.
Basically, a nice, hot 3+ Mach aircraft at altitude is a hell of a missile sponge. And you're not outrunning any missiles. Survival involves terrain masking and RCS reduction, not peak speed.
Not Tamiflu. Some researchers are apparently working with cocktails of the HIV drugs to see if they can get some response. I am not qualified to discuss whether that makes sense or is just wishful thinking.
Discussion on a National Public Radio broadcast a couple of days ago included a statement that struck me as very interesting. Children seem to be somewhat immune to the novel coronavirus. That's not too surprising because usually the aged get hammered by respiratory stuff more than young, non-smoking, and generally healthy people. But the doctor who was being interviewed said there's a body of thought that children are constantly exposed to all types of coronaviruses in school settings, and generally have a low level of permanent infection. Something about a total lack of social distancing and questionable personal hygiene. So it raises the question- if this theory is correct then closing schools may be precisely the wrong answer... There may be a benefit to zero social distancing.
But gooooood luck getting a controlled test for THAT experiment approved by a Medical Review Board!
I know! I'm definitely not of sound mind and body. Definite dirt nap material, and my doctor friend is already completely wasted about away from whatever crud he's been screwing around with through his career.
It's morbid, but sometimes we've got to look in the mirror and admit that were not 20 anymore :(
I think I need a large, unhealthy, and totally satisfying drink. To your health, eh?
Talked to a neighbor who spent his life in public medicine, retired o disability after one too many bouts of weird stuff suffered far from home
His take is that we should take comfort in the fact that ~80pct of cases will be minor. Assuming this coronavirus behaves like most, we can expect a significant drop in transmission and mortality in the summer months, and then US and Europe will get slammed hard in the fall. Similar to the 1918 pandemic's two waves.
At 1pct mortality, basically most people will personally know of one victim who ends up taking a dirt nap.
This virus seems to kill through a viral pneumonia, and the usual supportive measures (oxygen and steroids) do not seem particularly effective. None of the usual antivirals seem to do much. Mechanical respirators are needed to recover victims. These cost as much as a small car, take months to order, and require trained respiratory techs to set up and operate. He said that until we get a vaccine, respirator availability becomes a limiting factor.
Asked him for his advice, and he said "people should get their flu and other shots and avoid doing stupid things that consume medical resources."
@Elledan- awesome post. Needs an upvote and a pint for thoroughness.
Human factors are hard. That's why my previous life we said there were three ways to do things: the right way, the wrong way, and the Marine way.
The Marine way involves drilling your man senseless, then let him recover enough to hyper focus on task. You break complex tasks into smaller and smaller and smaller tasks. When the task is small enough, you assign a man to do it, trained and drilled until it can be done to perfection. That's why you go on a warship and you will see men and women physically watching gauges. SCADA? DCS? We've heard of it. Industrial automation? Meh. Marine attitude is that if I want a valve opened I want a human to experience the flow. Does the pipe vibrate? Smell different? Sound different? I can automate that, but how do you cover all the eventualities?
My problem is that I have to the faintest idea how to strike a good compromise between cost-efficient, minimal staffing (airlines) against my urge to throw a bunch of people at a problem.
Hopefully the wet ware was unaware of the experimental objectives. If I know I'm going to face controls or nav issues, perhaps I'm more alert to the possibilities of borkage.
I was once party to a study where we had a number of operators doing adult-level work on a network-intensive system. Unbeknownst to them, they were participating in a study of human effects from a vicious simulated cyberattack. We expected to see mental stress, confusion, and human errors. Other than the obvious connectivity and functionality deficits, the operators just shrugged and carried on. I debrief we had to TELL them their had been an attack. Respone? "Really? No s__t! We just thought I'd was another fscking Windows problem..."
Moral: when your OSes and networks suck so badly that 'normal ops' looks like a cyberattack, your operators will be well trained.
Hopefully the pilots overhead are not trained in this manner.
After a couple hours of normal interview technique I went into this one-on-one in a quiet room with a guy speaking in a monotone saying adjectives and nouns, and I had to say the very first word that came to mind. I guess they wanted to test my mental health.
Any idea how hard it is to not say "clam" when "bearded" is spoken when you're nervous, irritated, and trying to game an idiotic test?
We had a Failure Analysis branch, creatively named "FA" on org charts. A very well respected, highly competent, but slightly mischievous engineer took over the branch and titled himself "The King of Fa".
When you entered his office for a consult, he would ceremoniously don a purple robe and crown, raise a staff (fountain pen) in welcome, and say in a booming voice, "Welcome, stranger! Please tell me, what is your FA KING PROBLEM?"
Any language that allows one to write expressively enough to create poetry, yet arcane enough that optimized code is indistinguishable from line noise rocks.
Obligatory Black Perl reference:
Sometimes I look at a Perl script I've written and have to say, "how the ....does this work? It's unreadable! What idiot, er, I did that? Damn.. " Perl really is a write-only language
UUCP. That was a real man's file transfer protocol. Store-and-forward message passing over dialup connections. Plus email and netnews in one go! Try that with this newfangled ftp stuff!
Admittedly most people only experienced the joy of using these tools through uudecoding pictures of, er, kitties they downloaded from Usenet using rn in the late 80's
I'm getting seriously old.
I've been informed that I'm the one guy on the face of the Earth who asked for something like homed. In my defence, I have no recollection of any software discussion that night. I have dim recollections of a great many decent shots of whiskey, some awful fruity crap, something about bras, and some other stuff my barrister says I should not discuss. So when did I talk about systemd-homed? Can't recall, must've been the booze talking.
I wonder why the heck the garage was redlining your vehicle. If your car is new enough for OBD-II fitment I'd expect the emissions check to primarily consist of reading any emissions fault codes from your ECU.
I think there is a MOT test that checks whether your exhaust system is louder than a typical vehicle if the same type. Im not sure how redlining is an appropriate test for that...
El Reg needs a 'screwed' icon
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