Linux quickly deletes a large number of small file methods

You can do the following two steps:

1. First step: Create an empty folder: Mkdir/tmp/blank

2, the second step: Execute the following command: rsync--delete-before-d/tmp/blank//home/stormnode/store/html/new/

Linux quickly deletes a large number of small file methods

Using RM-RF * When we want to delete tens of thousands of or hundreds of thousands of or even millions of of files in a Linux system is not very useful because we have to wait a long time. In this case we can use the Linux system command rsync to skillfully handle.    Rsync actually uses the replacement principle, processing hundreds of thousands of files is also the second delete. 1. rsync installation, some systems have the command installed by default

Ubuntu System: sudo apt-get install Rsyncfedora system: sudo yum install rsync other can source installation, download to the following website

http://rsync.samba.org

2. Rsync provides some parameters related to deletion

Rsync--help | grep delete     --del                         and nbsp      an alias for--delete-during     --delete             &NB Sp            delete extraneous files from destination dirs     --delete-before             receiver deletes before transfer, not during     --delete-during             receiver deletes during transfer (default)      --delete-delay &NB Sp             find deletions during, delete after     --delete-after   &NB Sp            receiver deletes after transfer, not during     --delete-excluded        also delete excluded files from destination dirs     --ignore-errors &nbsp           Delete Even if there are I/O errors     --max-delete=num    do N ' t delete more than NUM files where--delete-before recipients are deleted before transfer  

3. Example

empty the directory or file as follows:

1. Create an empty directory first

Mkdir/data/blank

2. Delete the target directory with rsync

rsync--delete-before-d-a-h-v--progress--stats/data/blank//var/edatacache/or rsync--delete-before-d/data/ blank//var/edatacache/

This allows the/var/edatacache directory to be emptied quickly. Option Description:
–delete-before the recipient to delete before transferring
–progress display the transfer process during transmission
-a archive mode that represents recursively transferring files and keeping all file attributes
-H Keep hard-connected files
-V Verbose output mode
–stats gives the transmission status of some files-D transfer directories without recursing

3, can also be used to delete large files

If we have a dozens of g or even hundreds of files under/root/, now we're going to delete it

.

Create an empty file

touch/root/empty

Second, use rsync to empty the/root/data file

rsync--delete-before-d--progess--stats/root/empty/root/data

Note:

error when SRC and dest files are inconsistent in nature

when both SRC and Dest properties are file "F", it means emptying the contents of the file rather than deleting the file

when the SRC and Dest properties are both directory "D", it means deleting all files in that directory and making them empty directories

Linux quickly deletes a large number of small file methods