FreeBSD 7.0 manual page repository

FreeBSD is a free computer operating system based on BSD UNIX originally. Many IT companies, like DeployIS is using it to provide an up-to-date, stable operating system.

znew - convert compressed files to gzipped files



      znew - convert compressed files to gzipped files


      znew [-ftv9K] file ...


      The znew utility uncompresses files compressed by compress(1) and recom‐
      presses them with gzip(1).
      The options are as follows:
      -f      Overwrite existing ‘.gz’ files.  Unless this option is specified,
              znew refuses to overwrite existing files.
      -t      Test integrity of the gzipped file before deleting the original
              file.  If the integrity check fails, the original ‘.Z’ file is
              not removed.
      -v      Print a report specifying the achieved compression ratios.
      -9      Use the -9 mode of gzip(1), achieving better compression at the
              cost of slower execution.
      -K      Keep the original ‘.Z’ file if it uses less disk blocks than the
              gzipped one.  A disk block is 1024 bytes.


      The znew utility tries to maintain the file mode of the original file.
      If the original file is not writable, it is not able to do that and znew
      will print a warning.


Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.