This series is only for personal finishing notes and learning, such as want to learn the old Boys course, please contact the old boy education, thank you!
Follow the old boy student movement-Basics-commands
One, the order
1. mkdir (Make directory)
Description: Create a directory
Example: Mkdir/data
Parameter:-P
For example: Mkdir-p/data/a/* Create parent directory data and subdirectories a
2. CD (change directory)
Description: Change Directory
Example: cd/data/* Switch to/data directory
3. pwd
Description: View the current path
4. Touch
Description: Create a file
Example: Touch aaa.txt
Touch 123{a. Z}/* Create file 123a, 123b 、...... 123z and 26 files
5, Vi
Description: Editor
I/* Enter edit mode
Press shift+: Enter command mode
w/* Write Save
Q/* exit
! /* Mandatory
6:vim
Description: Advanced Editor
7:cat
Description: view edit, append
Example: Cat aaa.txt \* View Aaa.txt
Cat >a.txt \* Edit A.txt
Cat >>/data/oldboy.txt <<eof I am as studying Linux EOF \*: Build oldboy.txt and append content from EOF to Oldboy.txt
8:echo
Description: Print
Example: Echo "I am studying Linux"
9:CP (copy)
Description: Copy
Parameters: R/* Copy directory, recursive
F/* Mandatory
d/* If the source file is a link file, copy the linked file zodiac rather than the file itself
I/* If the target file already exists, ask when overwriting
P/* Copy the past along with the properties of the document
A/* equivalent to PDR
U/* If the destination file exists, the destination file is copied older than the source file
10:mv
Description: Move
Example: mv/data/1.txt/data/abc/
11:ls (list)
Description: View List
Parameter:-L (Long) long format displays directory or file attributes
Parameter:-D display Directory
Parameters:-a show hidden files
Example: LS/ETC/* View directories and files under/etc
12:man
Description: Command Help
Example: Man command
Second, special symbols
1:> or 1>
Description: Redirect
Example: Echo "I am studying Linux" > Aa.txt
2: >> or 1>>
Description: Redirect and append content to the trailer
3:< or <0
Description: Redirect
4:<< or <<0
Description: Redirect and append content to the trailer
5:
Standard input (stdin) code: 0 Use < or << data flow from right to left
Normal output (STDOUT) code: 1 Use > or >> Data flow from left to right
Error output (stderr) code: 2 Use 2> or 2>>
Example: Ech 111 > Correct.txt 2> error.txt/* Outputs the correct output to the Correct.txt and outputs the error to Error.txt
For example: Echo oldboy >a.txt 2>&1/* Outputs both the correct output and the wrong output to the A.txt
Iii. Combination of commands
Four, shortcut keys
1. Tab
Description: Command Completion
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Follow the old boy student movement-Basics-commands