start new:
tmux
start new with session name:
tmux new -s myname
filetype plugin indent on | |
syntax on | |
set autoread | |
set autowrite | |
set number | |
" Enable mouse | |
set mouse=a |
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)Postgres Cheat Sheet | |
Source: Postgresql Documentation | |
### shell commands | |
creatuser <user> | |
deletesuer <user> | |
createdb -O <user> -E utf8 -T <template> <db_name> | |
dropdb <db_name> |
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add | |
sudo apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main" | |
sudo apt install kubeadm |
class Endpoint { | |
constructor(path: String) { | |
} | |
fun query(key: String, defaultValue: String = "", valueExample: String = "", description: String = "") { | |
} | |
} | |
fun post(path: String, func: Endpoint.()->Unit): Endpoint { | |
return Endpoint(path) |
/* Enable postgis */ | |
CREATE EXTENSION IF NOT EXISTS postgis; | |
CREATE TABLE ex1 ( | |
id VARCHAR(10) NOT NULL, | |
loc geography(POINT, 4326) | |
); | |
CREATE INDEX ex1_loc_gix ON ex1 USING GIST (loc); |
import 'package:jaguar/jaguar.dart'; | |
import 'package:jaguar_auth/jaguar_auth.dart'; | |
import 'package:jaguar_example_session_models/jaguar_example_session_models.dart'; | |
main() async { | |
final server = Jaguar(port: 10000); | |
// Register user fetcher | |
server.userFetchers[User] = DummyUserFetcher(users); | |
server.postJson( |
import 'dart:async'; | |
Stream<int> stream() async* { | |
int k = 0; | |
while (k < 10) yield k++; | |
} | |
void main() async { | |
await for(int i in stream()) { | |
print('Starting $i ...'); |
import numpy as np | |
from lightning.classification import SAGAClassifier | |
from scipy import sparse | |
from sklearn.datasets import load_iris, make_classification | |
from sklearn.linear_model.logistic import ( | |
LogisticRegression, | |
) | |