Archive

Archive)

_$: tar -cvf folder.tar folder

Unarchive)

_$: tar -xvf folder.tar

Zip

Zip)

_$: 7z a folder.7z folder/ [-p]
_$: 7z a file.7z   file    [-p]
_$: gzip file.txt

Unzip)

_$: 7z x folder.7z
_$: 7z e file.7z
_$: gunzip file.txt.gz

Grep inside zipped files)

_$: zgrep -ni "word" *.gz

Archive and zip

Archive and zip)

_$: tar cvjf folder.tar.bz2 folder
_$: tar cvzf folder.tar.gz  folder
_$: tar cf - folder | 7z a -si folder.tar.7z
_$: tar cf - -C /some/directory mydir | 7z a -si mydir.tar.7z   # mydir won't have directory structure

Unzip and unarchive)

_$: tar xvjf folder.tar.bz2
_$: tar xvzf folder.tar.gz
_$: 7z x -so folder.tar.7z | tar xf -