how to disable accidental deletion for some directories怎么避免意外误删除目录？

1. 下载safe-rm

社区有个safe-rm，可以解决绝大多数误删除目录的问题，安装命令：

apt install safe-rm

 

2. 配置safe-rm

默认safe-rm会禁止删除一些已知的系统目录，用户可以通过配置/etc/safe-rm.conf来增加额外的删除黑名单，下面例子里面后面2行配置都是我增加的调用删除时会提示skipping：

root@sse-shared-dev-011:/home# cat /etc/safe-rm.conf
/
/bin
/boot
/dev
/etc
/home
/initrd
/lib
/proc
/root
/sbin
/sys
/usr
/usr/bin
/usr/include
/usr/lib
/usr/local
/usr/local/bin
/usr/local/include
/usr/local/sbin
/usr/local/share
/usr/sbin
/usr/share
/usr/src
/var
/home/ronghua.zhou/test
/home/test
 
 
root@sse-shared-dev-011:/home# rm -fr /home/test/
safe-rm: skipping /home/test/

 

 

3. 增强safe-rm

但默认的代码还不够好，例如下面的命令可以正常运行：

rm -fr /home/test/*
cd /home/ronghua.zhou/
rm -fr test/

 

 

需要手工修改一下：

--- safe-rm     2014-11-03 02:11:18.000000000 +0000
+++ safe-rm    2021-10-28 06:22:59.930180532 +0000
@@ -3,7 +3,6 @@
 use warnings;
 use strict;
 use Cwd 'realpath';
-
 our $VERSION = '0.12';
 
 my $homedir            = $ENV{HOME} || q{};
@@ -11,6 +10,10 @@
 my $USER_CONFIG_FILE   = ($ENV{XDG_CONFIG_HOME} || "$homedir/.config") . "/safe-rm";
 my $GLOBAL_CONFIG_FILE = '/etc/safe-rm.conf';
 
+sub  trimstar {
+       my $s = shift; $s =~ s/\/\*?$//g; return $s
+}
+
 my %default_protected_dirs = (
     '/bin'               => 1,
     '/boot'              => 1,
@@ -76,7 +79,7 @@
     my $pathname = $_;
 
     # Normalize the pathname
-    my $normalized_pathname = $pathname;
+    my $normalized_pathname = trimstar($pathname);
     if ( $normalized_pathname =~ m{/}xms or -e "$normalized_pathname" ) {
 
         # Convert to an absolute path (e.g. remove "..")

 

完整的代码，也可以在我的github仓库下载：

safe-rm/safe-rm at master · zhouronghua/safe-rm (github.com)