Linux Basics----First: Common sense knowledge of Linux systems (welcome comments, keep up to date)

1.ls-a command will list all contents (. cache,controller.py) in the current directory;

In 2..cache . Indicates that the file is a hidden file; the suffix py in controller.py represents a Python script;

3.vi . Profile, which is a hidden file in which the text content # indicates that the line content is commented;

4.00 * * * * * sh/root/refreshbondgoods/run.sh >> Log.log, the run.sh script is executed every 3 o'clock in the morning, the log is automatically entered into the Log.log file; (for crontab follow-up details!) )

Description of the task configuration: * * * * * command: Time-sharing Moon Week command

5. Set Routing information: route add-net next Hop network address GW gateway address netmask Subnet Mask (255.255.255.0 or 24);

6.usermod (optional) (parameter): If the parameter is two, the order is generally usermod (option) target parameter original parameter; usermod-l vivi vivike; change user name vivike to Vivi;

Linux Basics----First: Common sense knowledge of Linux systems (welcome comments, keep up to date)