Linux first week study notes (15)

Linux first week study notes (15)

2.8. Creating and deleting catalogs

mkdir Command (make directory shorthand ) : used to create a directory

mkdir–p command: Cascading create multiple directories

mkdir – PV command: Visualize cascading create multiple directories

rmdir Command ( Remove Directory abbreviated): used to delete empty directories, only to delete directories, not to delete files. (Must be empty in the directory to delete)

rmdir-p commands: cascading Create multiple directories (must be empty)

Touch command: used to create a new empty file

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mkdir To Create a directory:

[Email protected] ~]# Mkdir/tmp/daizhihong

[Email protected] ~]# ls/tmp/daizhohng/

[Email protected] ~]# ls-ld/tmp/daizhihong/

drwxr-xr-x 2 root root 6 1 Month 23:31/tmp/daizhihong/

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[Email protected] ~]# mkdir/tmp/daizhihong/01/02/03/04

mkdir: Unable to create directory "/tmp/daizhihong/01/02/03/04": there is no file or directory ( mkdir multiple cascading directories cannot be created when the command is used alone

mkdir – P Create multiple cascading catalogs (add Parameters P Create multiple cascading directories):

[Email protected] ~]# mkdir-p/tmp/daizhihong/01/02/03/04

[Email protected] ~]# ls-l/tmp/daizhihong/

Total Dosage 0

drwxr-xr-x 3 root root 1 Month 23:46

[Email protected] ~]# ls-l/tmp/daizhihong/01

Total Dosage 0

drwxr-xr-x 3 root root 1 Month 23:46

[Email protected] ~]# ls-l/tmp/daizhihong/01/02

Total Dosage 0

drwxr-xr-x 3 root root 1 Month 23:46

[Email protected] ~]# ls-l/tmp/daizhihong/01/02/03

Total Dosage 0

drwxr-xr-x 2 root root 6 1 Month 23:46, Geneva

mkdir – PV Create multiple cascading catalogs visually (add parameters V is visualized):

[Email protected] ~]# mkdir-pv/tmp/daizhihong1/01/02/03/04

mkdir: The directory has been created "/tmp/daizhihong1"

mkdir: The directory has been created "/tmp/daizhihong1/01"

mkdir: The directory has been created "/tmp/daizhihong1/01/02"

mkdir: The directory has been created "/tmp/daizhihong1/01/02/03"

mkdir: The directory has been created "/tmp/daizhihong1/01/02/03/04"

[Email protected] ~]#

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rmdir To Delete a directory:

[Email protected] ~]# rmdir/tmp/daizhihong/01/02/03/04

[Email protected] ~]#

[Email protected] ~]# ls-l/tmp/daizhihong/01/02/03/04

ls: Cannot access /tmp/daizhihong/01/02/03/04: no file or directory

Delete directory /04/ Success

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rmdir To Delete multiple directories:

[Email protected] ~]# rmdir/tmp/daizhihong/01/02/03

rmdir: Delete "/tmp/daizhihong/01" failed : Directory non-empty ( rmdir Delete Directory can only delete a directory, and multiple directories can not be deleted)

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[Email protected] ~]# Touch/tmp/daizhihong/01/02/11.txt

[Email protected] ~]# tree/tmp/daizhihong/01/02/

/tmp/daizhihong/01/02/

├── Geneva

│ └── 11.txt

└── 11.txt

1 directory, 2 files

[Email protected] ~]# rmdir/tmp/daizhihong/01/02/

rmdir: Delete "/tmp/daizhihong/01/02/" failed : Directory non-empty

rmdir When you delete a directory, there are files that cannot be deleted.

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rmdir-p To Delete multiple directories:

[Email protected] ~]# rmdir-p/tmp/daizhihong/01/02/03

rmdir: Delete "/tmp/daizhihong/01/02/03" failed : Directory non-empty

[Email protected] ~]# tree/tmp/daizhihong/01/02/03

/tmp/daizhihong/01/02/03

└── 11.txt

0 directories, 1 file

Use rmdir-p The command is capable of deleting multiple directories, prompting the deletion to fail because /tmp/daizhihong/ There are files in the directory so you can't delete them. /daizhihong/ Catalogue ,

rmdir-p command is usually not used, because easy to confuse easy to delete the wrong, as long as the empty directory will be deleted directly .

Linux first week study notes (15)