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Langue: en

Autres versions - même langue

Version: 2009-02-01 (fedora - 04/07/09)

Section: 1 (Commandes utilisateur)


rand - generate pseudo-random bytes


openssl rand [-out file] [-rand file(s)] [-base64] [-hex] num


The rand command outputs num pseudo-random bytes after seeding the random number generator once. As in other openssl command line tools, PRNG seeding uses the file $HOME/.rnd or .rnd in addition to the files given in the -rand option. A new $HOME/.rnd or .rnd file will be written back if enough seeding was obtained from these sources.


-out file
Write to file instead of standard output.
-rand file(s)
Use specified file or files or EGD socket (see RAND_egd(3)) for seeding the random number generator. Multiple files can be specified separated by a OS-dependent character. The separator is ; for MS-Windows, , for OpenVMS, and : for all others.
Perform base64 encoding on the output.
Show the output as a hex string.


Malheur aux gens qui n'ont jamais tord ; Ils n'ont jamais raison.
-+- Charles Joseph, Prince de Ligne, Mes écarts -+-