CVM: Linux folder file creation and deletion
1 Delete folder CVM
De > rm-rf fileNamede >
-Delete a folder instance:
Rm-rf / var/log/httpd/access
The / var/log/httpd/access directory and all files and folders under it will be deleted
Need to be reminded: you must be very careful when using this rm-rf. Linux does not have a Recycle Bin.
2 delete files
De > rm-f fileNamede >
Be careful when using rm-rf. Linux does not have a Recycle Bin.
Linux add File command
Create a directory: mkdir (make directories)
Function description: create a directory
Grammar: mkdir [- p] [--help] [--version] [- m] [directory name]
Additional note: mkdir can establish a directory and set the permissions of the directory at the same time.
Parameters:
-m or-mode sets the permissions of the directory at the same time it establishes the directory.
-p or-parents if the upper directory of the directory to be created has not been created yet, the upper directory will be created as well.
Example: mkdir test
Create a file touch
Function description: change the file or directory time. ?
Grammar: touch [- acfm] [- d] [- r] [- t] [--help] [--version] [file or directory.] Or touch [- acfm] [--help] [--version] [date and time] [file or directory.]
Note: use the touch directive to change the date and time of a file or directory, including access time and change time.
Parameters:
-an or-time=atime or-time=access or-time=use only changes the access time.
-c or-no-create does not create any files.
-d uses the specified date time instead of the current time.
-f this parameter is ignored and not processed, and is only responsible for resolving the compatibility issue of the BSD version of the touch directive.
-m or-time=mtime or-time=modify only changes the time of change.
-r set the date and time of the specified file or directory to the same date and time as the reference file or directory.
-t uses the specified date time instead of the current time.
Example: touch test.txt (Note: there is no file suffix under Linux to distinguish file types, system file types are only executable files and non-executable files)
