linux commands

commands.sh

# Nginx
sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/example.com
sudo nginx -t
sudo service nginx restart

# MySQL
sudo mysql --user=myuser --password=mypassword mydb

# Find bash shell
echo $SHELL

# grep
## find in files, http://explainshell.com/explain?cmd=grep+-rnw+%27%2Fpath%2Fto%2Fsomewhere%2F%27+-e+%22pattern%22
grep -rnw '/path/to/somewhere/' -e "pattern"

# upload & download

## download: remote -> local
scp user@remote_host:remote_file local_file

## ssh
eval $(ssh-agent -s)
ssh-add ~/.ssh/id_rsa

## run remote command with ssh

ssh [email protected] 'bash ~/scripts/myscript.sh'

apache2ctl configtest
# firewall
 sudo ufw status
 
 ## add rule
 sudo ufw allow from 78.20.198.50 to any port 3306 proto tcp

## upload: local -> remote
scp local_file user@remote_host:remote_file