pwd – current working directory .
ls – list all the folders in current working directory .
cd /dir_path – Go to certain directory .
cp rm mv – copy , remove and move files
mkdir dir_name – make a folder in current working directory .
chmod -options read_write_execute dir_path – set the mode (permissions) for current directory.
sudo username – select certain user configuration.
df – disk uses .
top – CPU and memory uses .
curl or wget url – http request in terminal
nano – terminal code editor
tar or unzip – unzip compressed file
ssh – remote login to computer
export – set up environment variables .
ufw – firewall for server
kill – kill a running process.
ifconfig – network utility .
So far that’s it , i will try to add more .