Comments on: shell中如何产生随机数（时间戳） https://www.coder4.com/archives/1323 Keep It Simple and Stupid Wed, 23 May 2012 02:08:50 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: wangjingfei https://www.coder4.com/archives/1323#comment-684 Wed, 23 May 2012 02:08:50 +0000 http://www.coder4.com/?p=1323#comment-684 我在Ubuntu下可以直接用这个命令“rand -M 30”获取到[0-30]的随机数，但是Debian和CentOS下好像没找到啊

]]> By: coder4 https://www.coder4.com/archives/1323#comment-83 Thu, 06 Jan 2011 06:38:28 +0000 http://www.coder4.com/?p=1323#comment-83 In reply to sswv.

恩，用urandom的更好，谢谢！

]]> By: sswv https://www.coder4.com/archives/1323#comment-82 Thu, 06 Jan 2011 05:57:14 +0000 http://www.coder4.com/?p=1323#comment-82 echo $RANDOM

head -c4 /dev/urandom | hexdump -e '"%d\n"'

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