0mp

Enabling multicast DNS (mDNS) on a server allows other hosts on the local network to address the server as <hostname>.local.

mDNS is disabled by default in Ubuntu Server:

$ resolvectl mdns
Global: no
Link 2 (eno1): no

0mp

dtrace -qn '
/* Result is a CSV with three columns: 
1) path,
2) count of open(s) without matching close(s) 
3) number of times opened*/
int self fd[int];
string self path;
BEGIN {
start = timestamp;
}

0mp

#! /usr/bin/env python

""" Convert values between RGB hex codes and xterm-256 color codes.

Nice long listing of all 256 colors and their codes. Useful for
developing console color themes, or even script output schemes.

Resources:
* http://en.wikipedia.org/wiki/8-bit_color
* http://en.wikipedia.org/wiki/ANSI_escape_code