Linux study notes (1)

1 Conversion User: su-root (shiftuser) Note: Each control platform needs to exit exit2 to view its own User: whoam

1. conversion user: su-root (shift user) Note: exit for each control platform

2. view the User: whoami

Directory control platform: tty

Conversion console: ctr + alt + F1-7

3-line command: ipconfig = ifconfig display ip

Change Password: passwd

4. Tab key: cd/etc/sysconfig/network-scripts, then cd/return

SSH protocol encrypts all data streams and cannot be accessed

5. The Sudo command can be run as the root role. the id displays the information of the current user.

Red Hat provides two desktop systems: GNOME graphics, which belong to the X Window System and is a subsystem in Linux. it is started through startx and tested with xeyes and KDE commands.

6. X service redirection to Windows:

Display the image in the command line. (That is, the Linux system can be displayed on windows for ease of management, # export DISPLAY = 192.168.1.1: 0.0, and then run # xeyes; # gnome-terminal; # gnome-session)

7. date-s "22:00:01" (use shift + up/down to flip the page)

Date -- set = "22:00:01"

Date + % F

Cal [[month] year]: cal 03 2014 matches the outermost surface by default

8. when you view a man page, use the direction keys PgUp, PgDn navigation,/text search keyword, n/N to go to the next/previous search match, and q exits.

Whatis cal: Brief description of the display command (-- help/-help/whatis/man)

Whatis mount

Man 2 mount

11. the man-k keyword is used to list all matched pages and implement man's full-text search: man-K iso9660