What should be considered when using the nohup command …

When using the nohup command, please pay attention to the following points:

1. Run in the background: Using the nohup command allows a program to run in the background without being affected by the closure of the console. The program will continue to run even if the user logs out or closes the terminal window.
2. Output redirection: The nohup command will redirect the output of the program to the nohup.out file in the current directory. You can use the output redirection symbol (>) to redirect the output to a different file.
3. No logs will be generated: the nohup command does not generate log files. If logs need to be recorded, you can use the redirect symbol to redirect the output to a log file.
4. Long running time: the nohup command is suitable for tasks that require a long time to complete, such as backups and data processing. It is not suitable for short tasks because the nohup command runs in the background.
5. Ignore input: the nohup command will ignore all input to the program. If the program requires user input, you need to set the input parameters in advance or use another method.
6. Check Running Status: You can use the “ps” command to view processes started with the “nohup” command, and use the “kill” command to terminate processes.

In conclusion, when using the nohup command, it is important to pay attention to background running, output redirection, logging, suitable scenarios, input handling, and process management.