On Friday 28 September 2007 03:08, Carlos E. R. wrote:
> Randall R Schulz wrote:
> > Dd is just a fancy copy program. It does not format the data it
> > transfers.
>
> Actually, it does:
>
> ] DD(1) User Commands DD(1)
> ]
> ]
> ] NAME
> ] dd - convert and copy a file
>
> ^^^^^^^
Sort of, but it cannot do octal, decimal or hex conversion nor can it
perform these non-existent conversions on multibyte items such as 16- or
32-bit quantities. The only two-byte operation it has is byte swapping.
To wit:
conv=CONVS convert the file as per the comma separated symbol list
...
ascii from EBCDIC to ASCII
ebcdic from ASCII to EBCDIC
ibm from ASCII to alternate EBCDIC
block pad newline-terminated records with spaces to cbs-size
unblock replace trailing spaces in cbs-size records with newline
lcase change upper case to lower case
nocreat do not create the output file
excl fail if the output file already exists
notrunc do not truncate the output file
ucase change lower case to upper case
swab swap every pair of input bytes
noerror continue after read errors
sync pad every input block with NULs to ibs-size; when used
with block or unblock, pad with spaces rather than NULs
fdatasync physically write output file data before finishing
fsync likewise, but also write metadata
> ;-)
>
> --
> Cheers,
> Carlos E. R.
Randall Schulz
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