Introducing the enhancement of the recycle bin function of CentOS system
After linux rm deletes a file, it is more troublesome to restore it. Even if it is restored, the file name format becomes a string of numbers.
Modify the environment variables of the root user
vi ~/.bashrc
Comment the alias of line 5
#alias rm='rm -i'
Add the following content to the last line
mkdir -p ~/.trash
alias rm=trash
alias r=trash
alias rl='ls ~/.trash'
alias ur=undelfile
undelfile()
{
mv -i ~/.trash/$@ ./
}
trash()
{
mv $@ ~/.trash/
}
cleartrash()
{
read -p "clear sure?[n]" confirm
[ $confirm == 'y' ] || [ $confirm == 'Y' ] && /bin/rm -rf ~/.trash/*
}
Reload environment variables
source ~/.bashrc
Use the command ll -a to view the directory and find that there is an additional directory .trash. This directory is used to store deleted files
drwxr-xr-x. 2 root root 4096 Jun 4 11:31 .trash
Delete a file
[root@localhost ~]# rm percona-xtrabackup_2.2.3.orig.tar.gz
Check the directory and find that the deleted files are in the recycle bin directory
[root@localhost ~]# ll .trash/
total 33780
-rw-r--r--. 1 root root 34584359 Jun 2 09:39 percona-xtrabackup_2.2.3.orig.tar.gz
If you need to empty the recycle bin files
Use the following commands
[root@localhost ~]# cleartrash
clear sure?[n]y
Checked again and found it was empty.
[root@localhost ~]# ll .trash/
total 0
Although rm is defined with an alias, you can use an absolute path to delete files
For example/bin/rm 1.txt
It will not be saved to the .trash directory.
If you need to define automatic cleaning of files deleted within 7 days
You can write a script
#!/bin/bash
find /root/.trash -ctime 7 -type f -name "*" -exec /bin/rm {} \;
Then just call it in the task plan.
If there are other Linux users who need to log in to the server in addition to the root user, we also want them to use the recycle bin mechanism
Can modify system environment variables
vi /etc/profile
Add the last line
mkdir -p ~/.trash
alias rm=trash
alias r=trash
alias rl='ls ~/.trash'
alias ur=undelfile
undelfile()
{
mv -i ~/.trash/$@ ./
}
trash()
{
mv $@ ~/.trash/
}
cleartrash()
{
read -p "clear sure?[n]" confirm
[ $confirm == 'y' ] || [ $confirm == 'Y' ] && /bin/rm -rf ~/.trash/*
}
Reload environment variables
source /etc/profile
Create a normal user test
useradd a
set password
passwd a
Login to Linux
Check the directory and find that the .trash directory will be created
[a@localhost ~]$ ll -a
total 24
drwx------. 3 a a 4096 Jun 4 11:45 .
drwxr-xr-x. 5 root root 4096 Jun 4 11:44 ..
-rw-r--r--. 1 a a 18 Oct 16 2014 .bash_logout
-rw-r--r--. 1 a a 176 Oct 16 2014 .bash_profile
-rw-r--r--. 1 a a 124 Oct 16 2014 .bashrc
drwxrwxr-x. 2 a a 4096 Jun 4 11:45 .trash
Create an empty file
[a@localhost ~]$ touch 1.txt
Delete Files
[a@localhost ~]$ rm 1.txt
Check the recycle bin directory and find that there is an extra file
[a@localhost ~]$ ll .trash/
total 0
-rw-rw-r--. 1 a a 0 Jun 4 11:45 1.txt
If you feel unhappy with the location of the .trash directory, you can modify the environment variable to another location, and make sure the directory is writable.
The above is the detailed content of Introducing the enhancement of the recycle bin function of CentOS system. For more information, please follow other related articles on the PHP Chinese website!
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