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Full Discussion: General compression question
Operating Systems Linux General compression question Post 302524042 by Perderabo on Friday 20th of May 2011 09:08:49 PM
Data compression requires a lot of CPU power. To compress several hundred files simultaneously you're simply going to need a lot of horsepower. Something like a 16 core server with 64 GB of memory is probably the minimum configuration for this task. bzip2 is best compression program I know. There are a few alternatives but they are not as good. But there no magic software that can compress hundreds of 4 GB files on a workstation in a twinkling of an eye.
 
Test Your Knowledge in Computers #485
Difficulty: Medium
A computer operating system loads an executable file into a call stack on a hard disk.
True or False?

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ZNEW(1) 						      General Commands Manual							   ZNEW(1)

NAME
znew - recompress .Z files to .gz files SYNOPSIS
znew [ -ftv9PK] [ name.Z ... ] DESCRIPTION
Znew 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 znew. 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), zmore(1), zdiff(1), zgrep(1), zforce(1), gzexe(1), compress(1) BUGS
Znew 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. ZNEW(1)

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