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  • ...iles (think code, or replacing incorrect word usage) using a few different commands Perhaps easiest to remember as a command. ...
    2 KB (262 words) - 23:08, 20 April 2024
  • ...vailable editor in the *nix world, because it's small, and pretty powerful once understood. It does not revolve around cursors, arrow keys, and typing as you see in notepads, text fields, and such - it is more procedural and generall ...
    14 KB (2,155 words) - 21:34, 22 March 2024
  • I like to occasionally do things like: * put up a tunnel to allow SSH access to hosts behind a firewall, via my home server {{comment|(see also [[autossh]] ...
    14 KB (2,235 words) - 00:19, 22 April 2024
  • ...rom the mainframe days, cases where computers were heavy fancy things that you could put more than one user on. Terminal, as in a display and keyboard "at ...l now usually means '''terminal emulator''', meaning you're using software to imitate that hardware, which includes most types of "relaying a display-and ...
    7 KB (1,111 words) - 16:17, 31 January 2024
  • If you want to ruse RAM as a disk, the immediate options in linux are: :: and is a bunch safer due to the size limit - though still, pay attention to giving it no more than a good portion of typically-free RAM ...
    7 KB (1,071 words) - 16:46, 22 April 2024
  • is one that fails to actually abstract away what it needed to. To some degree, all abstractions are, ...
    8 KB (1,320 words) - 15:31, 14 August 2023
  • SMART is dumber than it pretends to be. As in, it may be dying and still say PASS, and by the time it says FAIL you are probably aware of it, ...
    9 KB (1,467 words) - 16:55, 20 April 2024
  • (When you want to '''watch/monitor''' a large amount of files for change, see [[File polling Note that filesystems are essentially databases (that tend to deal with partial failures better). ...
    12 KB (1,898 words) - 16:56, 20 April 2024
  • ...his a quick overview rather than something to surf away from. You can link to complex stuff or cheat sheets for completism)}} ...mail clients if you use it, or anything else that needs to query or inform you using more than one line. ...
    30 KB (4,713 words) - 16:43, 11 September 2023
  • It can be a handy while debugging, to see state at various stages, particularly in situations where attaching a d You can argue whether logging states help or interfere with code readability, m ...
    23 KB (3,793 words) - 14:07, 10 January 2024
  • ...s a layer on top of physical disks -- often presenting one or more of them to the local OS in a different way, e.g. as a single device. ...work-Attached Storage''' (NAS) refers to a server presenting a file system to one or more clients, ...
    22 KB (3,359 words) - 12:02, 24 April 2024
  • * SD (now named SDSC, 'standard capacity', to distinguish it) ** size (somewhat artificially) limited to 1-4GB ...
    13 KB (2,096 words) - 00:49, 21 April 2024
  • It's regularly referred to as mdadm, which is actually md's administration utility. You can look at the known md arrays and what they're up to via: ...
    23 KB (3,656 words) - 00:36, 21 April 2024
  • * makes it easier to embed an interpreter into your own project : %time - how much time (run once) ...
    26 KB (3,995 words) - 18:29, 12 April 2024
  • : a good measure of what you could sustain doing a single single sequential operation : how long an operation has to wait, e.g. in milliseconds. ...
    36 KB (6,004 words) - 17:47, 11 September 2023
  • ===Types of reference/access to a repository=== ...URLs contains an absolute path on that host, and regularly also a username to log in as ...
    46 KB (7,506 words) - 23:34, 21 April 2024
  • It's just my own self-educational notes. ...ncremental, and you may get strange errors (say, about missing symbols) if you do things in a strange order. ...
    25 KB (4,101 words) - 16:42, 28 March 2024
  • When you open a shell (or more) ''inside'' tmux or screen session, you can disconnect from that screen/tmux session, ...
    52 KB (7,993 words) - 00:23, 21 April 2024
  • ...t took too long (17338 > 5000), lowering kernel.perf_event_max_sample_rate to 25000 : you can ignore this, it's completely benign ...
    31 KB (4,602 words) - 00:20, 2 April 2024
  • :: Doesn't need to interact with rpcbind, lockd, or rpc.statd. Will locally interact with rpc. For NFS to work you need ...
    24 KB (3,738 words) - 00:31, 21 April 2024
  • ...hese ports, for security reasons {{comment|(e.g. making it a little harder to replace common services)}}. ...considers register''able'' ports to be 1024 through 49151, and above that to be '''"dynamic and/or private ports"''' ...
    32 KB (5,000 words) - 22:23, 1 February 2024
  • '''ID3v2''' was designed to overcome ID3's limitations ...pliance%20Issues] and you'll have less trouble after converting everything to 2.3 ...
    25 KB (3,971 words) - 17:57, 15 September 2023
  • To get an idea of what kind of plots you can make: To get an idea of how code looks like - the simplest may be something like ...
    56 KB (8,543 words) - 16:40, 20 April 2024
  • ...ans 'a collection of files serialized to a single file'. The "the best way to ensure a copy survives" sense is a topic in itself. '''Some example commands''' ...
    35 KB (5,638 words) - 15:53, 26 December 2023
  • You can run code on the microconroller, alongside the wifi code. :: apparently people have got it to send on the order of ~10mbit/s but don't count on that ...
    43 KB (6,959 words) - 23:11, 21 April 2024
  • ...iables, though in most cases unused labels are zeroed out, so you can also just look at the contents)}} It's hard to make a reader that takes even all the well-specified variants without some ...
    31 KB (4,968 words) - 23:10, 20 April 2024
  • The module itself doesn't seem to have a very formal name, but is mostly known as the Sagem HiLo module ('M2M ...ring in the SIM socket, serial communication, and some further connections to the HiLo module. ...
    57 KB (9,259 words) - 23:15, 20 April 2024
  • ...often amount requests, or amount of traffic - is a more complex topic tan you'ld think. And solves less than you'ld think, at least in itself. ...
    31 KB (5,114 words) - 17:37, 11 September 2023
  • Your introduction to git is probably going to define your levels of pain for the next year. The earlier you understand its model ''well'' the better off you'll be. ...
    82 KB (13,600 words) - 23:33, 21 April 2024
  • : copies binlogs, applies to slave and also eventually stop the fork's ability to stay drop-ins. Time will tell. ...
    47 KB (7,644 words) - 15:55, 26 February 2024
  • <!-- Python takes the pain out of programming. Many coders insist on putting it back. --> Where previously you might have called ...
    31 KB (4,682 words) - 00:15, 10 May 2024
  • Depending on what you read or tried, you may have associated the block thing that drags in 2D views make with creati ...e more expanded formsy, drowdowny sort of things are self explanatory once you have read up on how mapping, entities, visgroups and such work, but the ico ...
    54 KB (8,783 words) - 14:39, 20 June 2022
  • Dotfiles refer to the *nix practice of naming certain filenames with a dot at the start. To the filesystem they are not special in any way. ...
    44 KB (7,142 words) - 17:13, 14 February 2024
  • :: you can still use most of them, but can assume not much longer ...eaking, this was eventually resolved by passing control of the OpenGL spec to Khronos in 2006. Khronos[https://www.khronos.org/] controls various open AP ...
    42 KB (6,789 words) - 20:44, 29 December 2023
  • ...installed, in part because the packages have had to follow specific rules to become that package, in part because the package manager knowing about what {{comment|(until you start mixing package managers, but surely that's not everyday practice, ''r ...
    53 KB (8,241 words) - 12:59, 7 May 2024
  • ...n upgraded to one yet)}}, that meter is potentially doing all the work for you (and be more accurate than current clamps), '''if''' it has: If you have the '''impulse LED''', you'll need to not miss pulses. Probably some simple dedicated hardware. ...
    24 KB (3,909 words) - 16:24, 20 April 2024
  • 31 bytes (5 words) - 15:48, 11 September 2012
  • systemd would like to handle most of the base system, including: ...er init, that it is breaking with the "do one thing well, and make it easy to combine" unix philosophy, ...
    50 KB (7,490 words) - 16:24, 20 April 2024
  • : '''delimiting''' is using otherwise-unused character/values to split records/values, :: prepares data to be consumed by a specific reader ...
    55 KB (8,671 words) - 17:06, 21 January 2024
  • and another location (or multiple) that should be made to look exactly like it. This usually means that every update is free to overwrite and delete, ...
    41 KB (6,455 words) - 13:20, 15 March 2024
  • * tools to plot that data in images : all the space needed is allocated up-front and never needs to change ...
    38 KB (6,230 words) - 23:07, 20 April 2024
  • ===When ZFS may be interesting for you=== : when you care about your data and scale to more than one or two disks, this is probably the only reasonable approach ...
    67 KB (11,029 words) - 12:02, 24 April 2024
  • Most people know the below to some degree, and should. Which sometimes makes them easier to deal with, and sometimes requires serious contortion - which is one reason ...
    66 KB (10,740 words) - 10:40, 24 April 2024
  • ...an make at least squarewave sounds, because digital ports are ''designed'' to swing quickly. ...generation to separate ICs, timing is significant in both audio and video) to separate ICs. ...
    36 KB (5,760 words) - 14:42, 26 April 2024
  • You've probably seen fallback import tricks like: {{comment|(For ElementTree you may want something fancier; see [[Python notes - XML#Lineage.2C_variants.2C_and_impo ...
    45 KB (6,973 words) - 15:05, 5 March 2024
  • E-prime lets you do a good amount of things with just its drag and drop GUI style designer and built-in elements. ...can add scripting (Visual Basic) if you need to (though it is discouraged to have complex code, also for timing reasons). ...
    61 KB (9,670 words) - 14:32, 29 April 2024
  • It tries to be unopinionated about how things should be, ...es to separate tasks and abstractions to make it more flexible and eaasier to combine different methods in the same pipeline. ...
    66 KB (10,309 words) - 09:58, 2 August 2023
  • ==Protocols tied to products== ...rties (licensed or not) support the DRM, so some media will refuse to play to them. ...
    59 KB (9,172 words) - 00:42, 21 April 2024
  • ...eters) and sometimes the parameters are a little more extended, but that'd just be endless...)}} See also [[Video]] for some more general technical notes related to video files. ...
    75 KB (12,019 words) - 00:22, 21 April 2024
  • Don't use shell scripting (or perl) if you aren't restricted to it. ...}} means we check the exit code for all commands in a piped structure, not just the last. ...
    90 KB (13,679 words) - 13:29, 15 March 2024
  • ...which in practice ''often'' means "database modeled to be queried easily with SQL", but not only. Anything that can come from memory instead of platter disk tends to be much faster. ...
    74 KB (12,220 words) - 23:08, 20 April 2024
  • ...en to be isolated from kernel and other containers in all ways that matter to them being independent, and not trample on other things {{comment|(and ''in '''Compared to stuff like it''' ...
    91 KB (14,566 words) - 01:04, 24 April 2024
  • Web components are a way to make things you can drop into other pages in a way that is It's not part of any particular framework, it's just something you can do to opt in on a little [[decoupling]] for the web. ...
    62 KB (9,591 words) - 17:53, 11 September 2023
  • In principle this is just 9V DC. ...y pedals from one of those with enough current output, but that might lead to ground loop issues. ...
    66 KB (10,815 words) - 18:49, 22 April 2024
  • ...y you have to install, but it makes life so much simpler that you may care to do so. print( r.text ) # decoded according to r.encoding, OR ...
    55 KB (8,019 words) - 18:58, 9 July 2023
  • ...uch preferable ver number crunching in pure-python code. It can still help to build against a specific BLAS)}}. ...are various other libraries that build on it with more specific goals, or just cooperate nicely, including: ...
    73 KB (9,934 words) - 18:59, 9 July 2023
  • To avoid compatibility problems, ZIP files created for compatibility are based There are a whole bunch of file formats that amount to "a ZIP of all the separate parts". ...
    58 KB (9,340 words) - 12:01, 25 April 2024
  • If you're over thirty or so, you'll have seen these at airports. There's a few remaining now, but only a few ...ny, and that rustling sound is actually nice feedback on when you may want to look at the board again. ...
    93 KB (15,731 words) - 00:48, 29 April 2024
  • Let's get you to the point where a client/app can get to the database it needs. ==If your package makes you care: Clusters== ...
    145 KB (23,191 words) - 17:35, 19 March 2024
  • ...fic and medical ('ISM') devices could use these frequencies without having to worry about causing interference. ...omation, that sort of low-data-rate use (that often deal with interference just by repeating their message a bunch) though there are newer things, like [[8 ...
    108 KB (16,976 words) - 17:01, 29 April 2024
  • ...executing some code in a way that is distinct from others", often referred to as a '''thread of execution'''. If you want to include all uses, the typology is gnarlier than you'd think, ...
    146 KB (23,788 words) - 22:25, 28 April 2024
  • One of the easiest methods to get cross-platformness is probably the use of (network) sockets - mostly si That is, interoperation support mechanisms that leave their use up to you. ...
    88 KB (13,801 words) - 01:58, 6 April 2024
  • Yes, this is largely biased to the stuff I deal with. But what you're most likely to meet is primarily: ...
    237 KB (38,475 words) - 22:26, 28 April 2024