Shell Common Commands

1. pwd

PWD: Displays the absolute path of the current directory

2. cd

CD Document: Go to subdirectory cd/usr/local/lib: Go to the specific directory CD.: Return to Parent directory CD/: Return root directory

3. mkdir

mkdir directory: Creating subdirectories mkdir-p/home/dir1/dir2/dir3: Creating Multi-level catalogs

4. ls

ls [options] [File | directory]: Displays the file and subdirectory information in the specified directory, displays the file and subdirectory information in the current directory when no directory is specified main option:-L, view the details of a file or subdirectory under the current directory

5. Cat

Cat [Options] File list: Displays the contents of a text file main options:-N, which indicates that line numbers are displayed before each line

6. More

More filename: Split screen Displays the contents of the text file filename

7. CP

CP [Options] source file destination file: Copy one file to another file, or copy several files to another directory main option:-R, if the source file contains a directory name, the files under the directory are also copied to the destination

8. MV

MV [Options] source file destination file: Move one file to another, or move several files to another directory main option:-I, if the destination already has a file with the same name, first ask whether to overwrite the old file

9. rm

RM [Options] [File | directory]: Delete files and directories main option:-I, one by one before deleting the confirmation;-R, the directory and the following files are also deleted;-F, even if the original file property is set to read-only, it is also directly deleted, do not need to confirm each

Ten. chmod

chmod [Options] [Files | directory]: Changing the permissions properties of a file

One. Tar

tar [options] [filename of tar] [file list]: Compress, unzip tarball in tar format, make backup, restore backup files, etc.

Man

Man command name: Displays the help information for the specified command

--help.

Displays help for the specified command

Ping

Ping Network host Address: see if a host on the network can communicate

Ifconfig.

Ifconfig NIC Name: Configure NIC information, such as IP address, subnet mask, and default gateway

Netstat.

netstat [parameter list]: Display the native network status common parameters:-A or-all, display all connections in the socket

. telnet

Telnet Network host Address: remote login to a server host on the network

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Shell Common Commands