RM Command Delete directory and non-empty directory in Linux

RM command

Creating files in Linux is easy, and files can become obsolete and useless in the system at any time. Users can delete them with the RM command. The function of this command is to delete one or more files or directories in a directory, and it can also delete a directory and all the files and subdirectories under it. For linked files, only the link is deleted and the original file remains unchanged.
The general form of the RM command is:
RM [Options] File ...
If the-r option is not used, RM does not delete the directory.
The options for this command have the following meanings:
-F ignores files that do not exist and never gives a hint.
-R instructs Rm to recursively delete all directories and subdirectories listed in the parameters.
-I for interactive deletion.
Use the RM command with extra care. Because once a file is deleted, it cannot be restored. For example, when a user enters a cp,mv or other command, it accidentally enters the RM command, and when the user presses the ENTER key and realizes his or her own error, it is too late and the file is gone. To prevent this, you can use the I option in the RM command to confirm each file that you want to delete. If the user enters Y, the file is deleted. If you enter anything else, the file will be retained. In the next example, the user deletes the file test and example. You will then be asked to confirm each file. The user eventually decides to delete the example file and keep the test file.

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$ RM–II Test Example

There are more files in a directory, consider deleting them all at once.

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[Root@hx relate]# RM * F Rm:invalid option--? Try ' RM./-Kunming China _relate.txt ' to remove the file ' -300245303367326320271372_relate.txt '. Try ' rm--help ' for the more information.

This file is not deleted?

RM--help looked at the help

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By default, RM does not remove directories. Use the--recursive (-R Or-r) Option to remove each listed directory, too, along and all of its contents. To remove a file whose name starts with a '-', for example '-foo ', Use one of these commands: RM---Foo Rm./-foo

According to the tip:

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[Root@hx relate]# rm./-Kunming China _relate.txt Rm:remove regular file './-300245303367326320271372_relate.txt '? Y

Delete this file.

With: Bulk Delete a directory of empty files (0-byte file)

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Find. -name "*"-type f-size 0c | Xargs-n 1 rm-f

Modify the corresponding-size parameter to delete a file of the specified size, such as deleting a file of 1k size:

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Find. -name "*"-type f-size 1024c | Xargs-n 1 rm-f

But be careful not to use the-size 1k, this gets is occupies the space 1k, is 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.

The difference between RM and rmdir is that RM can delete an empty directory, and a non-empty directory cannot be deleted by RmDir, rm-rf a non-empty directory name.