File management
---------------
https://ss64.com/

pwd - see your location

root folder?

/ - root directory

/root - user root home

go back to home folder
cd
cd ~

ls to list directory content
man ls

hidden files, folders:
ls -a

ls -dl dir (shows dir itself, not content)

change directory
cd
cd .. (up one step)
cd ../.. (up two step)

create directory
mkdir dir-name

mkdir -p /f1/f2/f3
mkdir test
mkdir f1 f2 f3

create multiple folders with one command
http://askubuntu.com/questions/731721/is-there-a-way-to-create-multiple-directories-at-once-with-mkdir
mkdir sa{1..50}
mkdir -p sa{1..50}/sax{1..50}
mkdir {a-z}12345
mkdir {1,2,3}
mkdir test{01..10}
mkdir -p `date '+%y%m%d'`/{1,2,3}
mkdir -p $USER/{1,2,3}

you can run separate commands between backticks
mkdir `cat list`

check:
ls | grep -i TEST


path:
~/test/
/home/user/test/

| pipe redirect previous command output to next command input

&&  combine multiple commands into one line, if previous command has an error then next command will not be executed

& run command in background

move (mv), copy (cp)

cp source destination

deleting
rm test