generate magic cookies for xauth
generates a 128-bit random hexadecimal number for use with
the X authority system. Typical usage:
xauth add :0
"random" number generated is actually the MD5
message digest of random information coming from one of the
sources /dev/urandom, /dev/random, or the
libc pseudo-random functions, in this preference
Use this file as an
additional source of randomness. When file is
’-’, characters are read from standard
Read from file only this
number of bytes. This option is meant to be used when
reading additional randomness from a file or device.
number argument may be followed by the multiplicative
suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB,
PiB, EiB, ZiB and YiB (the "iB" is optional, e.g.,
"K" has the same meaning as "KiB") or
the suffixes KB=1000, MB=1000*1000, and so on for GB, TB,
PB, EB, ZB and YB.
Inform where randomness
originated, with amount of entropy read from each
Display version information and
Display help text and exit.
It is assumed
that none of the randomness sources will block.
xauth(1), md5sum(1), rand(3)
command is part of the util-linux package and is available