*Nix Cheat Sheet

nix-cheat-sheet.txt

// Make something executable
sudo chmod +x /etc/rc.local

// Run several commands as root
sudo sh -c "echo 21 >/sys/class/gpio/export"

// List all groups
getent group

// List all users
getent passwd

// View file permsisions of files
ls -l

// Edit root crontab
sudo crontab -e

// SET UP NETWORKING VIA TERMINAL
// add the following to /etc/network/interfaces
// To join unsecured network (no password), leave out the wireless-key line
auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet dhcp
wireless-essid Your-Network-Name
wireless-key Your-Network-Password

// Find out some info about a process
ps aux | grep react-native

// Find the PID of a process
pgrep -f react-native

// Find the PID of a process running on a specific port
lsof -i :8081

// Download a static copy of a website with working links
wget -r -l10 --page-requisites --convert-links -e robots=off www.dossiercreative.com