Man page for apt-get dcfldd Command
This tutorial shows the man page for man dcfldd in linux.
Open terminal with 'su' access and type the command as shown below:
man dcfldd
Result of the Command Execution shown below:
DCFLDD(1) User Commands DCFLDD(1)
NAME
dcfldd manual page for dcfldd (dcfldd) 1.3.4
SYNOPSIS
dcfldd [OPTION]...
DESCRIPTION
Copy a file, converting and formatting according to the options.
bs=BYTES
force ibs=BYTES and obs=BYTES
cbs=BYTES
convert BYTES bytes at a time
conv=KEYWORDS
convert the file as per the comma separated keyword list
count=BLOCKS
copy only BLOCKS input blocks
ibs=BYTES
read BYTES bytes at a time
if=FILE
read from FILE instead of stdin
obs=BYTES
write BYTES bytes at a time
of=FILE
write to FILE instead of stdout
NOTE: of=FILE may be used several times to write
output to multiple files simultaneously
of:=COMMAND
exec and write output to process COMMAND
seek=BLOCKS
skip BLOCKS obs sized blocks at start of output
skip=BLOCKS
skip BLOCKS ibs sized blocks at start of input
pattern=HEX
use the specified binary pattern as input
textpattern=TEXT
use repeating TEXT as input
errlog=FILE
send error messages to FILE as well as stderr
hashwindow=BYTES
perform a hash on every BYTES amount of data
hash=NAME
either md5, sha1, sha256, sha384 or sha512
default algorithm is md5. To select multiple algorithms to run simultaneously enter the names in a comma separated list
hashlog=FILE
send MD5 hash output to FILE instead of stderr
if you are using multiple hash algorithms you can send each to a seperate file using the convention ALGORITHMlog=FILE, for example md5log=FILE1,
sha1log=FILE2, etc.
hashlog:=COMMAND
exec and write hashlog to process COMMAND
ALGORITHMlog:=COMMAND also works in the same fashion
hashconv=[before|after]
perform the hashing before or after the conversions
hashformat=FORMAT
display each hashwindow according to FORMAT
the hash format mini language is described below
totalhashformat=FORMAT
display the total hash value according to FORMAT
status=[on|off]
display a continual status message on stderr
default state is "on"
statusinterval=N
update the status message every N blocks
default value is 256
sizeprobe=[if|of]
determine the size of the input or output file
for use with status messages. (this option gives you a percentage indicator) WARNING: do not use this option against a
tape device.
split=BYTES
write every BYTES amount of data to a new file
This operation applies to any of=FILE that follows
splitformat=TEXT
the file extension format for split operation.
you may use any number of 'a' or 'n' in any combo the default format is "nnn" NOTE: The split and splitformat options take effect
only for output files specified AFTER these options appear in the command line. Likewise, you may specify these several times for for different out
put files within the same command line. you may use as many digits in any combination you would like. (e.g. "anaannnaana" would be valid, but quite
insane)
vf=FILE
verify that FILE matches the specified input
verifylog=FILE
send verify results to FILE instead of stderr
verifylog:=COMMAND
exec and write verify results to process COMMAND
help display this help and exit
version
output version information and exit
The structure of of FORMAT may contain any valid text and special variables. The built in variables are used the following format: