soomtong

Shell Keybindings

Navigation 🚀

Keybinding	Action
Alt + f/b	Move cursor to previous/next word
Ctrl + a/e	Move cursor to beginning/end of command
Ctrl + xx	Toggle between the start of line and current cursor position

soomtong

#!/usr/bin/env bash

#####################################################################
# REFERENCES
# - https://cloud.google.com/run/docs/multiple-regions 
# - https://cloud.google.com/compute/docs/instance-groups/distributing-instances-with-regional-instance-groups
# - https://cloud.google.com/load-balancing/docs/https/setup-global-ext-https-compute
# - https://cloud.google.com/load-balancing/docs/backend-service#named_ports
#####################################################################

soomtong

// only works when there is no task running
// because we have a server always listening port, this handler will NEVER execute
process.on("beforeExit", (code) => {
  console.log("Process beforeExit event with code: ", code);
});

// only works when the process normally exits
// on windows, ctrl-c will not trigger this handler (it is unnormal)
// unless you listen on 'SIGINT'
process.on("exit", (code) => {

soomtong

(defun save-framegeometry ()
  "Gets the current frame's geometry and saves to ~/.emacs.d/framegeometry."
  (let (
        (framegeometry-left (frame-parameter (selected-frame) 'left))
        (framegeometry-top (frame-parameter (selected-frame) 'top))
        (framegeometry-width (frame-parameter (selected-frame) 'width))
        (framegeometry-height (frame-parameter (selected-frame) 'height))
        (framegeometry-file (expand-file-name "~/.emacs.d/framegeometry"))
        )

soomtong

/* 
Proof of concept: Writing dual-mode (sync and async) code via generators

Recommendation: start by reading the example (at the end).

API:
– The API object is called `def`.
– Dual-mode `await`: const unwrapped = yield wrapped;
– Dual-mode `yield`: yield def.$one(singleValue)
– Dual-mode `yield*`: yield def.$all(iterable)

soomtong

'use strict';

const crypto = require('crypto');

const ENCRYPTION_KEY = process.env.ENCRYPTION_KEY; // Must be 256 bits (32 characters)
const IV_LENGTH = 16; // For AES, this is always 16

function encrypt(text) {
 let iv = crypto.randomBytes(IV_LENGTH);
 let cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(ENCRYPTION_KEY), iv);

soomtong

# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName

soomtong

#!/usr/bin/env node
if (process.mainModule === module) setImmediate(() => main(process.argv).catch(e => console.log(e.stack) && process.exit(1)))

async function main(argv) {
  console.log(argv.slice(2))
}

soomtong

# require 'active_support/all'
def korean_topic_marker(str)
  k = str[-1] # last one char
  return '는' if k.mb_chars.decompose.size < 3 # 종성이 없는 경우 
  return '은'
end


def korean_subject_marker(str)
  k = str[-1] # last one char

soomtong

from: http://www.meandmark.com/keycodes.html
Virtual Keycodes for the Mac QWERTY Layout

Keycodes are in hexadecimal. A blank entry means either there is no key assigned to that keycode or I was unable to find the assigned key.

Keycode    Key
0x00        A
0x01        S
0x02        D
0x03        F