SELinux一键开启与禁用脚本

SELinux是美国国家安全局（NSA）对于强制访问控制的实现，是 Linux历史上最杰出的新安全子系统。但是SELinux的并不能与众多服务很好的兼容，有些人会关闭SELinux一了百了。在日常的运维过程中很少去频繁的开启关闭SElinux，今天我就写一个关闭与开启SELinux的脚本来锻炼我的脚本能力。

脚本代码

#!/bin/bash  
#  -------------+--------------------   
# * Filename    :       selinux.sh           
# * Revision    :       2.0             
# * Date        :       2017-09-02
# * Author      :       Aubin           
# * Description :                       
#  -------------+---------------------
#       www.shuaiguoxia.com
#

path=/app/selinux
selinux=`sed -rn "/^(SELINUX=).*\$/p" $path`

case $1 in
enforcing|en)

        sed -ri "s@^(SELINUX=).*\$@\1enforcing@g" $path
        if [ $selinux ==  'SELINUX=disabled' ];then
                read -p "SELinux enforcing. you need reboot system ( yes or no ):" input
                [ $input == 'yes' -o $input == 'y' ] && reboot || echo "please Manual operation reboot"
        else
                echo "SELinux enforcing."
        fi
        ;;
permissive|per|pe)
        sed -ri "s@^(SELINUX=).*\$@\1permissive@g" $path
        if [ $selinux == 'SELINUX=disabled' ];then
                read -p "SELinux permissive. you need reboot system ( yes or no ):" input
                [ $input == 'yes' -o $input == 'y'] && reboot || echo "please Manual operation reboot"
        else
                echo "SELINUX permissive"
        fi
        ;;
disabled|dis|di)
        sed -ri "s@^(SELINUX=).*\$@\1disabled@g" $path
        if [ $selinux == 'SELINUX=enforcing' ];then
                 read -p "SELinux permissive. you need reboot system ( yes or no ):" input
                [ $input == 'yes' -o $input == 'y' ] && reboot || echo "please Manual operation reboot"
        else
                echo "SELINUX disabled"
        fi
        ;;
l|a)
        echo `sed -nr 's@(^SELINUX=.*)@\1@p' $path`
        ;;
help|--help)
        echo "$0 [ enforcing | permissive | disabled  ]"
        ;;
*)
        echo "$0 [ enforcing | permissive | disabled  ]"

        ;;
esac

脚本测试