Linux Step---mkdir command

1 command function (brief description):

Used to create a directory that requires the user who needs to create the directory to have write permissions in the current directory, and that the new directory cannot be a directory that already exists for the current directory.

2 Command syntax:

mkdir the contents of the "Options" directory name #注: "Are non-mandatory options

3 command options (only common command parameters are described):

Use the help command: Man mkdir or Mkdir-help

-M,--mode==mode set permissions, here Use the help command to derive (set file mode (as in chmod), not a=rwx-umask) do not understand this string of English say what meaning???

-P,--Parents to create a directory recursively, even if the parent directory exists and does not error

-V,--verboe detailed print out all the created directory details

-Z,--context=ctx (Set the SELinux security context of each created directory to CTX) This is a string of description of what the meaning is not very understanding???

　

4 Usage Examples:

　　(1) mkdir directory name ", directory name"

#multiple catalogs can be created at once[[email protected] command_test]#mkdir dir1 dir2 dir3[[email protected] command_test]#llTotal Dosage 12drwxr-xr-x. 2 root root 4096 July 25 04:22DIR1DRWXR-xr-x. 2 root root 4096 July 25 04:22DIR2DRWXR-xr-x. 2 root root 4096 July 25 04:22Dir3#Create a directory name with spaces, but it is not recommended[[email protected] command_test]#mkdir "Dir4 xx"[[email protected] command_test]#llTotal dosage 16drwxr-xr-x. 2 root root 4096 July 25 04:22DIR1DRWXR-xr-x. 2 root root 4096 July 25 04:22DIR2DRWXR-xr-x. 2 root root 4096 July 25 04:22DIR3DRWXR-xr-x. 2 root root 4096 July 04:22 dir4 xx

　　(2) mkdir-m directory name Create directory and set permissions

# Bulk Set Permissions [[email protected] command_test] # mkdir-m 777 Dir5 DIR6 dir7 [[email protected] command_test] # ll total dosage2 root root 4096 July  04:252 root root 4096 July  04:252 root R oot 4096 July  04:25 dir7

 #   Note the normal creation of directories with the-m parameter setting permissions to create directory differences  [root  @localhost command_test]#   mkdir dir1  [[email protected] Command_test]#   ll  Total dosage 4drwxr -xr-x. 2 root root 4096 July 03:53 dir1[root  @localhost command_test]#   mkdir-m 777 Dir2  [[email protected] Command_test]#   ll  total usage 8drwxr -xr-x. 2 root root 4096 July 03:53 dir1drwxrwxrwx.  2 root root 4096 July 03:53 Dir2 

[[email protected] command_test] # mkdir--mode a=rwx-w dir1 [[email protected] command_test] # ll Total dosage 4Dr-xr-xr-x. 2 root root 4096 July  03:59 Dir1

# Note the following uses the u= owner, g= belongs to the group, o= other users [[email protected] command_test] #  [[email protected] command_test]#  ll total dosage 4drw-RW----. 2 root root 4096 July  04:03 Dir2

　　(3) MKDIR-PV directory name recursively create directory and output directory details

#The following are examples of creating a directory recursively[[email protected] command_test]#MKDIR-PV dir1/dir2/dir3mkdir: Directory Created"Dir1"mkdir: Directory created"Dir1/dir2"mkdir: Directory created"Dir1/dir2/dir3"[Root@localhost Command_test]#CD Dir1[Email Protected]lhost Dir1]#CD Dir2[[email protected] DIR2]#CD Dir3

#just touching the following two commands feels particularly interesting[[email protected] command_test]#MKDIR-PV Test1/{test2,test3/{test4,test5}}mkdir: Directory Created"test1"mkdir: Directory created"Test1/test2"mkdir: Directory created"Test1/test3"mkdir: Directory created"Test1/test3/test4"mkdir: Directory created"Test1/test3/test5"[Root@localhost Command_test]#MKDIR-PV DIR1/{DIR2,DIR3}/{DIR4,DIR5}mkdir: Directory Created"Dir1"mkdir: Directory created"Dir1/dir2"mkdir: Directory created"DIR1/DIR2/DIR4"mkdir: Directory created"DIR1/DIR2/DIR5"mkdir: Directory created"Dir1/dir3"mkdir: Directory created"DIR1/DIR3/DIR4"mkdir: Directory created"DIR1/DIR3/DIR5"

Linux Step---mkdir command