To check the process ID (PID) in Linux, you can use one of the following methods:
- Using the ps command:
Run the command ps aux to display all running processes along with their PIDs.
Use ps -ef as an alternative command to achieve the same result.
If you know the process name, you can use ps aux | grep
- Using the top command:
Launch the top command in the terminal.
Press SHIFT+P to sort the processes based on CPU usage, which will also display the corresponding PIDs.
- Using the pgrep command:
- Using the pidof command:
- Using the htop command (if not installed, you can install it with sudo apt-get install htop):
Run htop in the terminal to display an interactive process viewer.
The PIDs are displayed in the first column.
These methods provide various ways to check the process ID based on your requirements and familiarity with command-line tools.