1#!/bin/sh -e 2# 3# entropy: system entropy 4# 5# Copyright (C) 2011-2014 Dustin Kirkland <kirkland@byobu.org> 6# 7# Authors: Dustin Kirkland <kirkland@byobu.org> 8# 9# This program is free software: you can redistribute it and/or modify 10# it under the terms of the GNU General Public License as published by 11# the Free Software Foundation, version 3 of the License. 12# 13# This program is distributed in the hope that it will be useful, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU General Public License for more details. 17# 18# You should have received a copy of the GNU General Public License 19# along with this program. If not, see <http://www.gnu.org/licenses/>. 20 21__entropy_detail() { 22 cat /proc/sys/kernel/random/entropy_avail 2>/dev/null 23} 24 25__entropy() { 26 if [ -r /proc/sys/kernel/random/entropy_avail ]; then 27 local e=$(cat /proc/sys/kernel/random/entropy_avail) 28 [ -n "$e" ] || return 29 color K Y; printf "e%s" "$e"; color -- 30 fi 31} 32 33# vi: syntax=sh ts=4 noexpandtab 34