Linux Bulk Delete file and empty file Delete command

Linux Delete file or directory command RM (remove)

Feature Description: Deletes a file or directory.

Syntax: RM [-dfirv][--help][--version][file or directory ...]
Supplemental Note: Perform RM directives to delete files or directories, and if you want to delete the directory you must add the parameter "-r", otherwise the preset will only delete the file.
Parameters
-D or--directory deletes the hard connection data of the directory to be deleted directly to 0, deleting the directory.
-F or--force forcibly deletes a file or directory.
-I or--interactive ask the user before deleting the existing file or directory.
-R or-R or--recursive recursively, all files and subdirectories under the specified directory are processed together.
The-V or--verbose displays the instruction execution process.
--help online Help.

method of bulk deleting empty files (Files of size equal to 0) under Linux

The code is as follows	Copy Code
Find. -name "*"-type f-size 0c | Xargs-n 1 rm-f

This also allows you to delete a file of a specified size, as long as you modify the corresponding-size parameter, for example:

The code is as follows	Copy Code
Find. -name "*"-type f-size 1024c | Xargs-n 1 rm-f

is to delete a 1k size file. (but be careful not to use the-size 1k, this gets the Occupy space 1k, not the file size 1k).

If you delete the folder or the name of the connection, you can change the corresponding-type parameters, see the details of the man found

Delete N days ago File

Linux Bulk Delete files in time (delete n days ago file)

The code is as follows	Copy Code
find/opt/oracle/admin/ccxe/bdump/-mtime +10-name "*.*"-exec rm-rf {};

/opt/oracle/admin/ccxe/bdump/: Any directory that you want to clean

-mtime: The standard sentence formulation
+10: Find 10 days before the file, where the number of days to represent, +30 to find 30 days before the file

"*.*": the type of data you want to find, "*.jpg" means to find all files with the extension jpg, "*" to find all files
-exec: Fixed wording

RM-RF: Force delete files, including directories
{} ; : fixed wording, a pair of curly braces + space +/+;

Delete Files completely

Sometimes we have to completely delete some files, you can use the Shred command to achieve, shred is a part of the coreutils, so the basic Linux will have this command.

Shred the method of deleting a file completely:

The code is as follows	Copy Code
$ shred-u File

Shred uses random content to overwrite the nodes and blocks of the file, and deletes the file (-u parameter).

If you want to erase a bit more thoroughly you can add the-z parameter, which means you fill it with random data and then fill it with 0.

The code is as follows	Copy Code
$ shred-u-Z File

In addition shred can also clear the entire partition or disk, such as want to completely clear the contents of/DEV/SDB1 partition can be this way:

$ SHRED/DEV/SDB1 (note do not add-u parameter)

Shred's detailed parameters:

-F,--force Change permissions allow write (if necessary)

-N,--iterations=n rewrite n times, defaults to 3 times

--random-source=file reads data from a specified file

-S,--size=n the file to a fixed size (you can use suffixes such as K, M, C, etc.)

-U, truncate and remove files after--remove rewrite

-V,--verbose show progress

-Z,--zero-add overwrite data with 0

–HELP Display Help

–version Display version Information