- Create a file to store our credentials:
sudo vim /etc/postfix/sasl_passwd
sudo vim /etc/postfix/sasl_passwd
# Hello, and welcome to makefile basics. | |
# | |
# You will learn why `make` is so great, and why, despite its "weird" syntax, | |
# it is actually a highly expressive, efficient, and powerful way to build | |
# programs. | |
# | |
# Once you're done here, go to | |
# http://www.gnu.org/software/make/manual/make.html | |
# to learn SOOOO much more. |
/build/ |
The goal of this is to have an easily-scannable reference for the most common syntax idioms in JavaScript and Rust so that programmers most comfortable with JavaScript can quickly get through the syntax differences and feel like they could read and write basic Rust programs.
What do you think? Does this meet its goal? If not, why not?
JavaScript:
# first: | |
lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom | while read f; do sudo rm /usr/local/${f}; done | |
sudo rm -rf /usr/local/lib/node /usr/local/lib/node_modules /var/db/receipts/org.nodejs.* | |
# To recap, the best way (I've found) to completely uninstall node + npm is to do the following: | |
# go to /usr/local/lib and delete any node and node_modules | |
cd /usr/local/lib | |
sudo rm -rf node* |
error_page 500 /500.html; | |
location /500.html{ | |
return 500 '{"error": {"status_code": 500,"status": "Internal Server Error"}}'; | |
} | |
error_page 502 /502.html; | |
location /502.html{ | |
return 502 '{"error": {"status_code": 502,"status": "Bad Gateway"}}'; | |
} |
#!/usr/bin/env python | |
import sys | |
import pandas as pd | |
import pymongo | |
import json | |
def import_content(filepath): | |
mng_client = pymongo.MongoClient('localhost', 27017) |
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the \
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)// === Arrays | |
var [a, b] = [1, 2]; | |
console.log(a, b); | |
//=> 1 2 | |
// Use from functions, only select from pattern | |
var foo = () => [1, 2, 3]; |