xz - is a new general-purpose, command line data compression utility, similar to gzip and bzip2

To compress a file with xz

$ xz -z file.iso

To decompress a file

$ xz -d file.iso.xz

$ unxz file.iso.xz

To prevent deleting of the input file

$ xz -k file.iso

To force overwrite of output file and (de)compress links

$ xz -kf file.iso

To make fast compression

$ xz --fast file.iso

To make best compression( highest compression)

$ xz --best file.iso

To set a memory usage limit for compression

$ xz -k --best --memlimit-compress=15% file.iso

To run in quiet mode

$ xz -k -qv file.iso

To test compressed file integrity

$ xz -t file.iso.xz

To list information about .xz files

$ xz -l file.iso.xz

regards,

T.Dhanasekar