Linux Common commands

1. mkdir make Directorys Create directory example: MKDIR/DATA;CD/;mkdir data Create data directory at root/Bottom

2. LS list directory file example: LS/Reagan/directory directory and file LS is the directory and file below the current file

Parameter:-L (Long) long format-D (directorys) View Directory

3. Change directory path (switch directory) example: CD/ETC switch to the ETC directory under the root directory

4. PWD Print Work directory (displays the current path).

5, touch Create a file or update the timestamp of the file, if the file is in, only update the file timestamp, if the file does not exist, re-create the file.

6, Echo printout content, with "> or >>" can be overwritten with the file and append content, ">" meaning redirect, will clear all the previous data in the file, ">>" for the content appended, only the end of the file to append the required content, There is also a more complicated and less common command like printf.

VI: the equivalent of Windows Notepad, relatively simple. Example: VI oldboy.txt

vim: similar to VI, more complex than VI, more complex editor. If you do operations, such as learning to use the editor. Text Editor: EmEditor: Complex editor: Complex function, highlighting, auto indent, etc.

Relative path and absolute path:

Windows absolute Path:

E:\ALEX\SB, the path from the beginning (the drive letter);

Linux absolute path: Cat/etc/sysconfig/network-scripts/ifcfg-eth0, from the follow/start path.

Relative path: A path that does not start from the root and does not begin with a scratch (/heel). Relative paths are relative to the path of the current file.

Linux Common commands