Prevent RM misoperation to build Recycle Bin under Linux

1. Add the following script to a directory (e.g./data/shell)

script Name:rm-remove.sh

Script content:

#!/usr/bin/env Bash

# func: Security: How to replace RM

# TIME:2018/2/1

# EDITOR:YW

# --------------------

para_cnt=$#

Trash_dir= "/data/backup/.zc_trash"

Date= ' Date +%f '

Trash_dir_d=${trash_dir}/${date}

if [!-D ${trash_dir_d}]; then

Mkdir-p ${trash_dir_d}

Fi

For I in $*

Do

stamp= ' Date +%s '

if [!-D ${trash_dir_d}/${stamp}]; then

Mkdir-p ${trash_dir_d}/${stamp}

Fi

Pwdname= ' dirname ${i} '

Filename= ' basename ${i} '

MV ${i} ${trash_dir_d}/${stamp}/

echo "rm ${pwdname}/${filename}" >> ${trash_dir_d}/${stamp}/${stamp}.log

Done

2. Create Recycle Bin directory

[Email protected] shell]# Mkdir/data/backup/.zc_trash

3. Add Environment variables

[Email protected] shell]# vim ~/.BASHRC

Add script execution in the last line of alias

Alias rm= "Sh/data/shell/rm-remove.sh"

4. Environment variable Effective

[Email protected] ~]# source ~/.BASHRC

5. Testing

Create a new file or directory in any directory to perform an RM delete operation will error

[[email protected] ~]# Touch cc

[Email protected] ~]# rm-f cc

DirName: Invalid option--F

Try executing "dirname--help" for more information.

BaseName: Invalid option--F

Try executing "basename--help" for more information.

MV: The target file to be manipulated is missing after "/data/backup/.zc_trash/2018-02-01/1517462127/"

Please try the "MV--help" to get more information.

[Email protected] ~]#

We performed the RM operation and found that the current directory does not exist in the cc file, but we just did the MV operation of the file, and did not really delete,

6. Switch to the Recycle Bin directory to view

[Email protected] shell]# cd/data/backup/.zc_trash/

[email protected]. zc_trash]# ls

2018-02-01

[email protected]. zc_trash]#

We can see that there is a time directory under the current directory , and you will see a Unix time name directory after entering

[email protected]. zc_trash]# CD 2018-02-01/

[[email protected] 2018-02-01]# ls

1517462127

[Email protected] 2018-02-01]#

We use the Unxi decoding tool

[Email protected] 2018-02-01]# date-d @1517462127 + "%y-%m-%d%h:%m:%s"

2018-02-01 13:15:27

[Email protected] 2018-02-01]#

after entering this directory, I see a log file and the cc file of our RM just now.

[[Email protected] 2018-02-01]# CD 1517462127/

[[email protected] 1517462127]# ls

1517462127.log cc

[Email protected] 1517462127]#

View the log contents for the RM Operation command we just executed

[email protected] 1517462127]# cat 1517462127.log

RM/

Rm./cc

[Email protected] 1517462127]#

7, comprehensive: After we have made the above restrictions, the deleted items will be mv to this Recycle Bin directory and will be the Unix time directory

Prevent RM misoperation to build Recycle Bin under Linux