Tan Khuu tankhuu

>>> docker exec -it CONTAINERID /bin/sh
/app # telnet
/bin/sh: telnet: not found

/app # apk update
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
v3.7.0-243-gf26e75a186 [http://dl-cdn.alpinelinux.org/alpine/v3.7/main]
v3.7.0-229-g087f28e29d [http://dl-cdn.alpinelinux.org/alpine/v3.7/community]

If you are on a Mac, substitute command for control. Don't type the + (it means press both keys at once).

Shortcuts when in either command mode (outside the cells) or edit mode (inside a cell):

Shift + Enter run selected cell or cells - if no cells below, insert a code cell below
Ctrl + B toggle hide/show left sidebar
Ctrl + S save and checkpoint
Ctrl + Shift + S save as

	function toHex(s) {
	// utf8 to latin1
	var s = unescape(encodeURIComponent(s))
	var h = ''
	for (var i = 0; i < s.length; i++) {
	h += s.charCodeAt(i).toString(16)
	}
	return h
	}