1. ls
to view the files in the
current directory -a to view all the files in the
current directory -A to view all the files in the current directory but excluding this directory and the parent directory
-c to sort by change time and display all files
-l or ll to display file
permissions
_
_
_
_
_
_ :
cat -n file1>file2 Add the file content of file1 to the line number and enter the file into file2
4.cd
switch the working directory
5.vi
text editing
is divided into three modes: general mode, editing mode, command mode
i switch to editing Mode
x Delete the character at the current cursor position
: switch to large command mode
ESC, exit input mode, switch to command mode
Page Up/Page Down, page up/down
q Exit program
w Save file
wq Save and exit
q! Forced to exit
n represents a number, after the number input is completed, press the space bar and the cursor will move to the right by n units. In normal mode
/hello Searching for hello in the document is equivalent to ctrl+f in windows
6.chkconfig
to view the service that starts automatically
chkconfig on open
chkconfig off close
7.startx
switch to the graphical interface
8.service network restart restart
the network card service
network network service name , replace it with other services, you can complete the restart of
its services Display legend USER : Process owner PID: pid %CPU: Occupied CPU usage %MEM: Occupied memory usage VSZ: Occupied virtual memory size RSS: Occupied memory size TTY: Secondary device of the terminal Number (minor device number of tty) STAT: Status of the trip: D: Uninterruptible still R: In progress S: Still state
T: Suspend execution
Z: Does not exist but cannot be eliminated temporarily
W: Not enough memory pages to allocate
<: High priority run
N: Low priority run
L: Memory page allocated and locked in memory (immediate System or AI/O)
START: travel start time TIME
: execution
time Other information 11.shutdown/halt shutdown command 12.reboot restart
to view the files in the
current directory -a to view all the files in the
current directory -A to view all the files in the current directory but excluding this directory and the parent directory
-c to sort by change time and display all files
-l or ll to display file
permissions
_
_
_
_
_
_ :
cat -n file1>file2 Add the file content of file1 to the line number and enter the file into file2
4.cd
switch the working directory
5.vi
text editing
is divided into three modes: general mode, editing mode, command mode
i switch to editing Mode
x Delete the character at the current cursor position
: switch to large command mode
ESC, exit input mode, switch to command mode
Page Up/Page Down, page up/down
q Exit program
w Save file
wq Save and exit
q! Forced to exit
n represents a number, after the number input is completed, press the space bar and the cursor will move to the right by n units. In normal mode
/hello Searching for hello in the document is equivalent to ctrl+f in windows
6.chkconfig
to view the service that starts automatically
chkconfig on open
chkconfig off close
7.startx
switch to the graphical interface
8.service network restart restart
the network card service
network network service name , replace it with other services, you can complete the restart of
its services Display legend USER : Process owner PID: pid %CPU: Occupied CPU usage %MEM: Occupied memory usage VSZ: Occupied virtual memory size RSS: Occupied memory size TTY: Secondary device of the terminal Number (minor device number of tty) STAT: Status of the trip: D: Uninterruptible still R: In progress S: Still state
T: Suspend execution
Z: Does not exist but cannot be eliminated temporarily
W: Not enough memory pages to allocate
<: High priority run
N: Low priority run
L: Memory page allocated and locked in memory (immediate System or AI/O)
START: travel start time TIME
: execution
time Other information 11.shutdown/halt shutdown command 12.reboot restart