notes

Vim

Edit column

• Ctrl+v - mark across the column
  • Shift
    • +a - append
    • +i - insert
  • r - replace
  • d - delete
  • c - change

Configuration (~/.config/nvim/init.vim)

set nu
set tabstop=4
set shiftwidth=4
set expandtab
set colorcolumn=80

RegEx

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find

find . -name '*.jpg'
find . -name '*_tests.py' -o -name '*_test.py'

networking

nc -l <ip> <port>
nc -vz {host} {port}

sudo ufw status
sudo ufw allow <port>
sudo ufw disable <port>
sudo ufw disable
sudo ufw enable
sudo ufw reload

sudo iptables -t nat -v -L -n --line-number
sudo iptables -t nat -D POSTROUTING {number-here}

netstat -tuplen

grep

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awk

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