Learn Linux, starting with the command
The graphical interface just makes simple things simpler
graphical interface can quickly handle simple things, such as opening/closing a file
Then, as transaction complexity increases, the graphical interface is cumbersome to manipulate
For example, insert a picture in Word: Toolbar--insert--picture--Browse directory--OK
This feature is not really complicated, but the whole process, click at least 4 times
and the command line, dedicated to dealing with complex things
Command line in Linux
entering the Linux command line interface, in front of it, is actually a program
its name is, Shell
shell is a program that accepts a command entered by the keyboard and submits it to the Linux operation for execution
shell from the GNU Project Bash,bash is an enhanced version of SH
Linux terminal emulator
linux release, typically with a terminal emulator (terminal emulator), is used to access the shell
The KDE environment uses Konsole, and the GNOME environment uses gnome-terminal
Shell prompt
shell prompt means that the system is ready to accept input
General format:
[user name @ machine name current working directory] $
If $ becomes #, indicates the current operator user Super Administrator privileges
Up or down in command line
up, switch to the command you just executed
down, switch to the next command in the current command (if none, no characters are displayed)
Toggle command, requires that the system has a command history (Linux typically stores up to 500 commands)
Left/Right, move cursor, movable range [command start bit, command end bit]
Simple command
date: Displays today's date and time
cal: Displays the current month calendar
ls: Displays the current directory file list (table Form)
-a Show All files (ls default does not show hidden files-to. The beginning of the file, will generally be hidden)
DF: View the disk drive's current free space
free: Displays available memory information
clear: Clears the executed command (displayed on the interface)
Exit: Exit the terminal emulator
"Linux command line Daquan" series (I, Shell is what)