Preface:
Syntax: command [- options] [parameters] (ls -al / etc)
(1) individual commands do not follow this format
(2) When there are multiple selection, can be written together
(3) simplify the options and complete option (-a equal --all)
1, ls: display the directory file
2, cd: Switch to the specified directory
3, pwd: displays the current directory
5, rmdir: delete empty directories
6, cp: copy files or directories
9, clear: clear screen (Ctrl + L)
text:
1, ls: display the directory file
Intent: list
Options:
| -a | --all | Show all files, including hidden files |
| -l | --long | For more information show |
| -d | Displays the current directory itself | |
| -lh | The file size conversion (1205-1.2K) | |
| -i | id file |
Note: where the query result is -l -rw-r - r-- 1 root root 1873 9 Yue 16 21:06 profile.
(-: file type, - binaries, d directory, l soft link file) (rw-: u owner; r--: g belonging group; r--: o else - Read R & lt; W Write; X execution) (base file) (owner) (the owning group) (file size) (time of last modification) (file name)
2, cd: Switch to the specified directory
Intent: change directory
parameter:
| ~ | The current directory location of the parent directory |
| .. | The current directory location of the parent directory |
3, pwd: displays the current directory
Intent: print working directory
Intent: make directories
Options:
| -p | Recursively create that together create multi-level directory |
5, rmdir: delete empty directories
原意：remove empty directories
6, cp: copy files or directories
Intent: copy
Syntax: cp [-rp] [original file or directory] [destination directory]
Options:
| -r | Copy directory |
| -p | Preserve file attributes (modification time) |
Intent: move
Syntax: mv [original file or directory] [destination directory]
Intent: remove
Syntax: rm [-rf] [file or directory]
| -r | Remove directory |
| -f | Forced to delete |
9, clear: clear screen (Ctrl + L)
Clear screen