How can you check the running status of processes on Linux?

There are several common commands that can be used in Linux to view the status of processes. Here are a few examples:

1. The ps command is used to take a snapshot of the current active processes. By using different parameters, you can obtain various information, such as running ps aux to view detailed information about all active processes.
2. The top command: displays real-time information about active processes and system resource usage. Press ‘s’ to sort processes by CPU usage, and press ‘m’ to sort processes by memory usage.
3. The htop command provides more interactive features and information than the top command, and can be installed using a package manager like apt-get (sudo apt-get install htop).
4. The pstree command displays the hierarchical structure of processes in a tree format. Running the pstree command shows the parent-child relationship of the current processes.
5. Systemctl command is used to manage system services. You can use the systemctl status command to check the running status of a specific service.
6. lsof command: Used to list open files and processes. You can use the lsof command to view the files opened by a specific process.

These commands can be directly executed in the terminal, using appropriate parameters as needed to retrieve the desired information.