pgzf1
Parallel gzip file io
Usage
pgzf [options]
file1
[file2 ...]
Overview
PGZF: Parallel gzip file IO Author: Jue Ruan <[email protected]> Version: 1.1
Options
-
-d -
Decompress mode
-
-t <int> -
Number of threads, [8]
-
-f -
Force to overwrite
-o <string> Output file name, support directory
-
-x -
Delete input files after done
-
-b <int> -
Block size in MB, 1 ~ 256 [16]
-
-l <int> -
Compress level, 1-9, see gzip, [6]
-
-h -
Show this document
-
-V -
Print version information and exit
File format:
-
PGZF fellows standard GZIP format (rfc1952), and is blocked compressed. It defines two TAGs in each GZIP header, ZS: block size, ZX: random access index. Program pgzf can decompress .pgzf and .gz files. When decompressing .gz files, pgzf is in fact a buffered gzip reader. Also, .pgzf files can be decompressed by program gzip.
In plan to support random access