- update to 9.2:
* cksum now accepts the --base64 (-b) option to print
base64-encoded checksums. It also accepts/checks such
checksums.
* cksum now accepts the --raw option to output a raw binary
checksum. No file name or other information is output in
this mode.
* cp, mv, and install now accept the --debug option to
print details on how a file is being copied.
* factor now accepts the --exponents (-h) option to print
factors in the form p^e, rather than repeating the prime p, e
times.
* ls now supports the --time=modification option, to explicitly
select the default mtime timestamp for display and sorting.
* mv now supports the --no-copy option, which causes it to fail
when asked to move a file to a different file system.
* split now accepts options like '-n SIZE' that exceed machine
integer range, when they can be implemented as if they were
infinity.
* split -n now accepts piped input even when not in round-robin
mode, by first copying input to a temporary file to determine its
size.
* wc now accepts the --total={auto,never,always,only} option
to give explicit control over when the total is output.
* 'cp --reflink=always A B' no longer leaves behind a newly
created empty file B merely because copy-on-write clones are not
supported.
* 'cp -n' and 'mv -n' now exit with nonzero status if they skip
their action because the destination exists, and likewise for 'cp
-i', 'ln -i', and 'mv -i' when the user declines. (POSIX