uncompress - it is used to uncompress files that were compressed using the compress command.

$ cat demo.txt This is line one This is line two This is line three This is line four This is line five This is line six This is line seven This is line eight This is line nine This is line ten

To compress the file $ compress demo.txt demo.txt.Z

To uncompress the file $ uncompress demo.txt.Z

To write to the standard output $ uncompress -c demo.txt.Z

To print verbose output $ uncompress -v demo.txt.Z

To uncompress forcefully $ uncompress -f demo.txt.Z $ uncompress -cvf demo.txt.Z

combining with tar command $ tar -cvf - dir1 dir2 | compress > file.tar.Z To uncompress $ uncompress -c file.tar.Z|tar -xvf -

regards, T.Dhanasekar