man - manual
pwd - user way
ls - list of content
ls -l - content of directory
ls -la
ls -p - detailed content of directory
mkdir - make directory
cd - move to directory
rmdir - remove directory
rwx - right?
echo - printing smth
echo $variable - print variable
cat - content of the file
cat -e - shows special contents
touch - create file and modify file
touch -t - modify date and time of the file
chmod u g o - changing rights for user
rm - remove files
wc - shows detailed info about files
more - like a cat but shows entire doc
head/tail -c/-e - delete rows
grep * - filter file
grep -v * - filter file excluding * / grep -i ?
ln -s - make a link

git clone - make a directory



VIM
https://phoenixnap.com/kb/how-to-vim-save-quit-exit
https://losst.ru/kak-polzovatsya-tekstovym-redaktorom-vim