crosstyan

The Windows version of OpenSSH client doesn't include a ssh-copy-id command. I don't know why. If it does one day, then this can be ignored.

NOTE If you have Windows Subsystem for Linux (WSL) installed, you can use the linux version of ssh-copy-id instead. Go to the description at the end of this document.

• Download the file ssh-copy-id.cmd to your Windows PC, or copy and paste its contents.
• Run the script passing your linux ssh information (for example ssh-copy-id.cmd [email protected]). This should work with any Linux platform. Alternatively, if you have experience, you can use the powershell version. ssh-copy-id.ps1. Run the script as powershell .\ssh-copy-id.ps1 [email protected].
• Run the command for each linux account you connect with. You will be prompted for your Linux host password. If you have more than 1 account on any machine, you must do this for each account.

The file name and location of the script is not important but the filename extension must be .cmd

crosstyan

#ifndef _Static_assert
/* https://en.cppreference.com/w/c/language/_Static_assert
 * https://en.cppreference.com/w/c/keyword/static_assert
 * check if C23 or C++
 */
#if defined(__cplusplus) ||                                                    \
    (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L)
#define _Static_assert static_assert
#else
#include <assert.h>

crosstyan

#include <cstdint>
#include <cstdio>

enum class StructBitfieldOrder {
	/// the most significant bit as the first appearing field in a struct
	MSB_AS_FIRST_FIELD,
	/// the least significant bit as the first appearing field in a struct
	LSB_AS_FIRST_FIELD,
	/// should not happen
	OTHER,

crosstyan

# Set-ExecutionPolicy -ExecutionPolicy Unrestricted
$proxy_host = "http://192.168.5.2"
$proxy_port = 36000
$before_path = Get-Location

function remove-env($name) {
    $before= Get-Location
    try {
        # https://stackoverflow.com/questions/8388650/powershell-how-can-i-stop-errors-from-being-displayed-in-a-script
        Set-Location Env:

crosstyan

import random
import time
from multiprocessing import cpu_count
from typing import (
    Any,
    Awaitable,
    Callable,
    Final,
    Generic,
    Iterable,

crosstyan

% https://www.mathworks.com/matlabcentral/answers/439671-why-i-cannot-define-a-function-in-live-script
[inc, get] = createCounter();
inc();
inc();

disp(get());

% https://www.mathworks.com/help/matlab/function-handles.html
obj = createCounterMap();
disp(obj);

crosstyan

Copying the whole linux root filesystem locally or remotely using rsync

Explanation of chosen options:

• Verbose output with speed and progress information
• Try to preserve all possible information: file attrs, hardlinks, ACLs and extended attrs,
• Exclude contents of pseudo-filesystems and mountpoints
• In this example source host is remote and destination local.

rsync --info=progress2  -vaHAX --exclude={"/dev/*","/proc/*","/sys/*","/tmp/*","/run/*","/mnt/*","/media/*","/lost+found"} source.host:/ /local/destination

crosstyan

crosstyan

仕事で WebRTC

日時:	2023-01-15
作:	@voluntas
バージョン:	2023.1
url:	https://voluntas.github.io/

この資料は以下の製品の宣伝を含みます。

crosstyan

C++ links: Coroutines

https://github.com/MattPD/cpplinks / C++ Standard / C++20 / Coroutines

(draft; work in progress)

#coroutines (C++ Slack): https://cpplang.slack.com/archives/C5JS5JXT5

Contents