p7zip is a port of 7za.exe for POSIX systems like Unix (Linux, Solaris, OpenBSD, FreeBSD, Cygwin, AIX), MacOS X and also for BeOS and Amiga.
7z is an excellent archiving software offering high compression ratio and strong AES-256 encryption.
Installation
Debian/Ubuntu
Open a terminal and type:
apt-get install p7zip-full p7zip-rar
Red Hat/Fedora
yum install p7zip p7zip-plugins
(does not include a RAR plugin)
More here.
Compress (with AES encryption)
7-zip does not store the owner/group of the file, so adding
files using tar before 7z is a good practice:
tar cpvf test.tar test/
7z a -p -mx=9 -mhe -t7z test.7z test.tar
Params
a Add
-p{Password} Set Password
-mx=9 ultra compression
-mhe encrypt file names
-t7z file type .7z
If you are interested more for encryption rather than compression (eg when you archive compressed files), this is much more faster (-mx=0 no compression).
7z a -p -mx=0 -mhe -t7z test.7z test.tar
Params
-mx=0 no compression - just add the files
Extract
7z x test.7z
Params
x eXtract with full paths
GUI front end
Archive Manager (File Roller) will support 7z after p7zip packages installation. To add AES encryption, just provide a (strong) password.
Another option is PeaZip. Just download (latest) portable Linux version from Sourceforge.
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