cd / #back to the root directory cd ~ #back to the home directory cd - #back to the previous directory pwd # printing current working directory
Short cuts inside the terminal : ctrl+shift+x / ctrl+shift+v
'du' - Finding the size of a directory - du -h 'df' - finding the disk free space / disk usage
export PS1='> ' export PS1='\u@\h: ' #both can hide the prolong working direct
dd if=filename of=filename1 conv=ucase Linux view MAC address in a system level.