File: systune

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systune 0.5.3
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#!/bin/sh

# Copyright (C) 1998 Daniel Podlejski <underley@zakopane.top.pl>
#               1999 Piotr Roszatycki <dexter@debian.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 2 dated June, 1991.
# 
#    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, write to the Free Software
#    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
#    02111-1307, USA.

help () {
cat << EOT
systune 0.5 - Kernel tuning utility
Usage: $0 [-c|--config <configfile>]

Parameters:
  -c|--config <configfile>    - alternative config file, 
                                default is /etc/systune.conf
  -h|--help                   - this help text
  -v|--verbose		      - verbose mode
  
EOT
}


CONF=/etc/systune.conf

while [ "$#" -gt 0 ]; do
    case "$1" in
	--config|-c)
	    CONF=$2
	    shift
	    shift
	    ;;
	--help|-h)
	    help
	    exit 0
	    ;;
	--verbose|-v)
	    VERBOSE="yes"
	    shift
	    ;;
    esac
done

if [ -f $CONF ]; then
    # '\n' is an only separator
    IFS="$(echo)"
    cat $CONF | sed 's/[ 	]*#.*$//' | while read sysctl; do
			#space+tab
	if [ "${sysctl#/proc/sys/}" != "$sysctl" ]; then
	    sysctlname=$(echo $sysctl | cut -d: -f1)
	    sysctlcontent=$(echo $sysctl | cut -d\: -f2-)

	    # don't check if file exists when verbose mode
	    if [ -n "$VERBOSE" ]; then
		test -n "$sysctlname" && test -n "$sysctlcontent" && \
		    echo "$sysctlcontent" > $sysctlname
	    else 
		test -w "$sysctlname" && test -n "$sysctlcontent" && \
		    (echo "$sysctlcontent" > $sysctlname) 2> /dev/null
	    fi

	fi
	
    done
fi

exit 0