Any slick way to go from Z to gz?? Post: 302557851

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Operating Systems Solaris Any slick way to go from Z to gz?? Post 302557851 by Scott on Thursday 22nd of September 2011 08:47:52 AM

09-22-2011

Administrator Emeritus

You must have enough free space to accomodate the new .gz file, before deleting the .Z file. The .Z file itself is not uncompressed to disk.

Even if gzip could further compress the .Z file, you still need enough space to store the .gz file while it's being created.

If space is so tight that you don't have enough room for the .gz file, then gzip it to another filesystem first. And depending on what's in the file, and the size and number of files, there's no guarantee that gzip will save you much anyway.

Scott

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gznew

GZNEW(1)						      General Commands Manual							  GZNEW(1)

NAME

       gznew -	 recompress .Z files to .gz files

SYNOPSIS

       gznew [ -ftv9PK] [ name.Z ...  ]

DESCRIPTION

       gznew  recompresses  files from .Z (compress) format to .gz (gzip) format.  If you want to recompress a file already in gzip format, rename
       the file to force a .Z extension then apply gznew.

OPTIONS

       -f     Force recompression from .Z to .gz format even if a .gz file already exists.

       -t     Tests the new files before deleting originals.

       -v     Verbose. Display the name and percentage reduction for each file compressed.

       -9     Use the slowest compression method (optimal compression).

       -P     Use pipes for the conversion to reduce disk space usage.

       -K     Keep a .Z file when it is smaller than the .gz file

SEE ALSO

       gzip(1), gzmore(1), gzdiff(1), gzgrep(1), gzforce(1), gzexe(1), compress(1)

BUGS

       gznew does not maintain the time stamp with the -P option if cpmod(1) is not available and touch(1) does not support the -r option.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWgzip	      |
       +--------------------+-----------------+
       |Interface Stability | External	      |
       +--------------------+-----------------+
NOTES

       Source for gzip is available in the SUNWgzipS package.

																	  GZNEW(1)