x1unix

The VIM Cheatsheet

Links

• https://vim-adventures.com/
• https://eax.me/vim-commands/
• neovim guide

Most of commands accept number before (eg: 3k moves down 3 times)

x1unix

package main

import (
	"fmt"
	"unsafe"
)

func main() {
  // way 1
	const is64Bit = uint64(^uintptr(0)) == ^uint64(0)

x1unix

class FpsCounter {
	constructor(callbackFn) {
	  if (typeof callbackFn !== 'function') {
	    throw new ReferenceError(`Function argument required (got ${typeof callbackFn})`);
	  }
	  this.enabled = false;
	  this.fps = 0;
	  this.callback = callbackFn;
	}
	

x1unix

Brief explanation

Linux exposes a special interface to control screen brightness via sysfs in /sys/class/backlight (source). The problem is that in Lenovo Legion 5 there are two modules registered to control screen brightness - AMDGPU and ideapad modules:

$ ls /sys/class/backlight
amdgpu_bl0
ideapad

x1unix

Keybase proof

I hereby claim:

• I am x1unix on github.
• I am x1unix (https://keybase.io/x1unix) on keybase.
• I have a public key ASDhUxHxR9krTdi_xwqHg9lgsZ1nDptYNLdFnIDyCAWbGAo

To claim this, I am signing this object:

x1unix

package main

import (
  "fmt"
)

// ParseFloatPrecisely parses floating point from string as strconv.ParseFloat
// but avoids float point precision issue (ex: "0.21" parsed as 0.209999)
func ParseFloatPrecisely(str string, bitSize int) (num float64, err error) {
	if str == "" || str == "0" {

x1unix

The VIM Cheatsheet

https://vim-adventures.com/

https://eax.me/vim-commands/

Most of commands accept number before (eg: 3k moves down 3 times)

modes

x1unix

package main

func IPsFromCIDR(cidr string) ([]net.IP, error) {
	_, ipNet, err := net.ParseCIDR(cidr)
	if err != nil {
		return nil, err
	}

	ones, bits := ipNet.Mask.Size()
	addrCount := 1 << (bits - ones)

x1unix

Xiaomi Yi camera

General info

• OS: Buildroot
• CPU: ARMv6-compatible processor rev 5 (v6l)
• BogoMIPS: 524.28
• Memory: 37MB

The root filesystem is rootfs, which is stored in memory and therefore wiped on reboot. The Micro SD card is mounted at /tmp/fuse_d/. Something is also mounted at /tmp/fuse_a and /tmp/fuse_z.

x1unix

<VirtualHost *:80>
	# The ServerName directive sets the request scheme, hostname and port that
	# the server uses to identify itself. This is used when creating
	# redirection URLs. In the context of virtual hosts, the ServerName
	# specifies what hostname must appear in the request's Host: header to
	# match this virtual host. For the default virtual host (this file) this
	# value is not decisive as it is used as a last resort host regardless.
	# However, you must set it for any further virtual host explicitly.
	ServerName goplay2.x1unix.com
	ServerAlias www.goplay2.x1unix.com