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Filename : entropy
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#!/bin/sh -e
#
#    entropy: system entropy
#
#    Copyright (C) 2011-2014 Dustin Kirkland <kirkland@byobu.org>
#
#    Authors: Dustin Kirkland <kirkland@byobu.org>
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, version 3 of the License.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.

__entropy_detail() {
	cat /proc/sys/kernel/random/entropy_avail 2>/dev/null
}

__entropy() {
	if [ -r /proc/sys/kernel/random/entropy_avail ]; then
		local e=$(cat /proc/sys/kernel/random/entropy_avail)
		[ -n "$e" ] || return
		color K Y; printf "e%s" "$e"; color --
	fi
}

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