Linux basic commands

Wget is a free tool that automatically downloads files from the web
The TAR-ZCXF command is to pack the files and compress them first.
The TAR-ZVXF command is to unzip and repackage this file.
CD: Return to the previous level
Exit the file being edited: Wq; capital Z Z

Upload file: securecrt-file-connect sftp tab-lls (local directory)-CD to the specified directory-put file

Telnet to the Linux server: Login as:root.

Compress to zip under Win7, unzip unzip under Linux.

Linux Open a port: Nc-lp 1723 &; Check if open: Netstat-an | grep 1723;NETSTAT-NLP | grep 1723

Date: Date

data+%y/%m/%d:20150120

Calendar: Cal [2015]

Calculator: BC

Transform directory: cd ~hank: Go to Hank User's directory, equivalent to/home/hank

CD: Back to Directory

CD-: Go back to the directory you just

Cd.. /mqueue: from/val/spool/mail to/var/spool/mqueue

Show current directory: PWD [-P: Nexus file? ]

Build a new catalog: Mkdir-p test1/test2: Help resume multi-level catalogue

Delete Empty directory: Rmdir-p test1/test2: Above

Ls-l: How many directories are there?

Catalog display: Ls-a

-D: List the directory itself

-L: Include Properties and Permissions

Copy directory: cp-a:-pdr-i: The target file exists and will be queried; -R: Recursive continuous Replication

Removal: RM

Move, rename directory: MV

basename: File name

DirName: Directory Name

Cat:-b, List line number-N: Blank line also has line number

Vim: Mode: command, insert, edit; use esc/i/: Toggle

Command mode:: Q exit;: q! Forced exit: Wq save exit;: Set number Displays line numbers

Linux basic commands