操作说明：
为了防止在linux下执行操作的时候误操作rm -rf /,或者rm -rf 一些比较重要的目录，我们做以下操作来限制rm的删除
1、下载源码安装包
https://raw.githubusercontent.com/bazingafraser/cv/master/article/rm/safe-rm-0.12.tar.gz
2、具体操作如下
[root@i-ekowjial ~] tar -xvzf safe-rm-0.12.tar.gz
[root@i-ekowjial ~] cd safe-rm-0.12
[root@i-ekowjial safe-rm-0.12]# mv safe-rm /usr/local/bin/rm
[root@i-ekowjial safe-rm-0.12]# chown root:root /usr/local/bin/rm
[root@i-ekowjial safe-rm-0.12]# vi /etc/profile
最后一行添加：
PATH=/usr/local/bin:/bin:/usr/bin:$PATH
[root@i-ekowjial safe-rm-0.12]# source /etc/profile 环境变量生效
[root@i-ekowjial safe-rm-0.12]# vim /etc/safe-rm.conf
将禁止删除的目录写入该文件，每个目录一行
/
/boot
/sbin
/data/ccc
保存退出即可
[root@i-ekowjial safe-rm-0.12]#
3、测试
在/data创建一个ccc的目录并写入/etc/safe-rm.conf
保存退出之后删除ccc出现以下返回，证明操作成功
[root@i-ekowjial data]# rm -rf ccc/
safe-rm: skipping ccc/
[root@i-ekowjial data]#
######################################################################################
#!/bin/bash
#########################################################################
# File Name: securityremove.sh
# Author: LookBack
# Email: admin#dwhd.org
# Version:
# Created Time: 2015年08月16日 星期日 01时47分37秒
#########################################################################
wget -q http://www.dwhd.org/script/securityremove -O /bin/securityremove
chmod 755 /bin/securityremove
[ -f /etc/bash.bashrc ] && (sed -i "/securityremove/d" /etc/bash.bashrc && echo ‘alias rm="/bin/securityremove"‘ >> /etc/bash.bashrc && . /etc/bash.bashrc)
[ -f /etc/bashrc ] && (sed -i "/securityremove/d" /etc/bashrc && echo ‘alias rm="/bin/securityremove"‘ >> /etc/bashrc && . /etc/bashrc)
[ -f /root/.bashrc ] && (sed -i "/alias rm/d" /root/.bashrc && echo ‘alias rm="/bin/securityremove"‘ >> /root/.bashrc && . /root/.bashrc)
[[ -f "~/.bashrc" && "$USER" != "root" ]] &&(sed -i "/alias rm/d" ~/.bashrc && echo ‘alias rm="/bin/securityremove"‘ >> ~/.bashrc && . ~/.bashrc)
原文地址：https://www.cnblogs.com/xinfang520/p/10472763.html