Linux view the user login information -last
https://www.cnblogs.com/nyatom/p/10297741.html
last command:
last command displays the user's most recent login information. Alone last command executed, the read / var / log / wtmp file and displays a list of users logged in to the content of all the file records.
grammar:
last (option) (parameters)
Options:
- -a: where to log into the system from the host name or ip address, displayed in the last line
- -d: converts IP addresses to host names
- -f <log file>: Specifies the log file
- -n <Display Sequence> / - <shows the number of columns>: Set column lists the number of display list
- -R: does not display the host name or IP address of the host name of the logged
- -x: display system shutdown, reboot and change the execution level information
parameter:
- User Name: Displays the user registration list
- Terminal: login from the list of designated terminals
Actual usage:
View last boot time:
who -b # 或 last -1 reboot
Check off record:
last -x | grep shutdown # shutdown time period to show
View failed login records:
sudo lastb -i # ip source to display
View the system since last boot time
Uptime # or w
last command:
last command displays the user's most recent login information. Alone last command executed, the read / var / log / wtmp file and displays a list of users logged in to the content of all the file records.
grammar:
last (option) (parameters)
Options:
- -a: where to log into the system from the host name or ip address, displayed in the last line
- -d: converts IP addresses to host names
- -f <log file>: Specifies the log file
- -n <Display Sequence> / - <shows the number of columns>: Set column lists the number of display list
- -R: does not display the host name or IP address of the host name of the logged
- -x: display system shutdown, reboot and change the execution level information
parameter:
- User Name: Displays the user registration list
- Terminal: login from the list of designated terminals
Actual usage:
View last boot time:
who -b # 或 last -1 reboot
Check off record:
last -x | grep shutdown # shutdown time period to show
View failed login records:
sudo lastb -i # ip source to display
View the system since last boot time
Uptime # or w