09-26-2007
SOURCEtotal 624
TARGETtotal 558
Yes, I noticed.. can u pls explain? Thanks.
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LEARN ABOUT DEBIAN
xdelta3
XDELTA3(1) General Commands Manual XDELTA3(1)
NAME
xdelta3 - VCDIFF (RFC 3284) binary diff tool
SYNOPSIS
xdelta3 [command] [options] [input [output]]
DESCRIPTION
xdelta3 is a binary diff tool that uses the VCDIFF (RFC 3284) format and compression.
COMMANDS
config prints xdelta3 configuration
decode decompress the input, also set by -d
encode compress the input, also set by -e (default)
test run the builtin tests
printdelta
print information about the entire delta
printhdr
print information about the first window
printhdrs
print information about all windows
recode encode with new application/secondary settings
OPTIONS
standard options:
-0 .. -9
compression level
-c use stdout
-d decompress
-e compress
-f force overwrite
-h show help
-q be quiet
-v be verbose (max 2)
-V show version
memory options:
-B bytes source window size
-W bytes input window size
-P size compression duplicates window
-I size instruction buffer size (0 = unlimited)
compression options:
-s source source file to copy from (if any)
-S [djw|fgk]
enable/disable secondary compression
-N disable small string-matching compression
-D disable external decompression (encode/decode)
-R disable external recompression (decode)
-n disable checksum (encode/decode)
-C soft config (encode, undocumented)
-A [apphead]
disable/provide application header (encode)
-J disable output (check/compute only)
-T use alternate code table (test)
NOTES
The XDELTA environment variable may contain extra args:
XDELTA="-s source-x.y.tar.gz"
tar --use-compress-program=xdelta3 -cf
target-x.z.tar.gz.vcdiff target-x.y/
EXAMPLES
Compress the differences between SOURCE and TARGET, yielding OUT, using "djw" secondary compression:
xdelta3 -S djw -s SOURCE TARGET OUT
Do the same, using standard input and output:
xdelta3 -S djw -s SOURCE < TARGET > OUT
To decompress OUT, using SOURCE, yielding TARGET:
xdelta3 -d -s SOURCE OUT TARGET
AUTHOR
xdelta3 was written by Josh MacDonald <josh.macdonald@gmail.com>.
This manual page was written by Leo 'costela' Antunes <costela@debian.org> for the Debian project (but may be used by others).
Xdelta3 August 2009 XDELTA3(1)