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Test Your Knowledge in Computers #73
Difficulty: Easy
BSD (Berkeley Software Distribution) is an open-source, Unix-like operating system.
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fiocompress(1m) [opensolaris man page]

fiocompress(1M) 					  System Administration Commands					   fiocompress(1M)

NAME
fiocompress - file compression utility SYNOPSIS
/sbin/fiocompress -c [-m] [-b block_size] input_file output_file /sbin/fiocompress -d input_file output_file DESCRIPTION
The fiocompress utility is a file compression tool that works together with the dcfs(7FS) file system to perform per-file compression. You can use fiocompress to decompress a compressed file or mark a compressed file as compressed, causing automatic decompression on read. The primary use of fiocompress is to compress files in the boot archive. Note that this utility is not a Committed interface. See attributes(5). OPTIONS
The following options are supported: -b block_size Specify a block size for compression. The default block size is 8192. -c Compress the specified file. -d Decompress the specified file. -m Mark the compressed file for automatic decompression on read. Can be used only in conjunction with -c. EXIT STATUS
0 The command completed successfully. -1 The command exited due to an error. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsr | +-----------------------------+-----------------------------+ |Interface Stability |Private | +-----------------------------+-----------------------------+ SEE ALSO
boot(1M), bootadm(1M), dcfs(7FS), ufs(7FS), attributes(5) NOTES
This compression/decompression utility works only with files stored in a UFS file system. There is no obvious way to determine whether a given file is compressed, other than copying the file and comparing the number of disk blocks of the copy against the original. SunOS 5.11 10 Dec 2008 fiocompress(1M)

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