=pod =encoding utf8 =head1 NAME rand - generate pseudo-random bytes =head1 SYNOPSIS B [B<-help>] [B<-out> I] [B<-rand> I] [B<-base64>] [B<-hex>] I =head1 DESCRIPTION The B command outputs I pseudo-random bytes after seeding the random number generator once. As in other B command line tools, PRNG seeding uses the file I<$HOME/>B<.rnd> or B<.rnd> in addition to the files given in the B<-rand> option. A new I<$HOME>/B<.rnd> or B<.rnd> file will be written back if enough seeding was obtained from these sources. rand命令在播放随机数生成器一次后输出num伪随机字节。与其他gmssl命令行工具一样，除了-rand选项中提供的文件外，PRNG种子使用文件$ HOME / .rnd或.rnd。如果从这些来源获得足够的播种，将会写入新的$ HOME / .rnd或.rnd文件。 =head1 OPTIONS =over 4 =item B<-help> Print out a usage message. 输出使用信息 =item B<-out> I Write to I instead of standard output. 写入file而不是标准输出。 =item B<-rand> I Use specified file or files or EGD socket (see L) for seeding the random number generator. Multiple files can be specified separated by an OS-dependent character. The separator is B<;> for MS-Windows, B<,> for OpenVMS, and B<:> for all others. 使用指定的文件或EGD套接字（请参阅RAND_egd（3））播放随机数生成器。多个文件可以由与操作系统相关的字符分隔。分离器是对于MS-Windows，对于OpenVMS ，以及：对于所有其他。 =item B<-base64> Perform base64 encoding on the output. 在输出上执行base64编码。 =item B<-hex> Show the output as a hex string. 将输出显示为十六进制字符串。 =back =head1 SEE ALSO L =head1 COPYRIGHT Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. Licensed under the GmSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at L. =cut