Bash ps Command - Snapshot of Current Processes

The ps command is used to report a snapshot of current processes.

It's a useful tool for monitoring and managing processes on your system.

All examples below use a hypothetical process list for demonstration:

The ps command output consists of several columns, each representing different aspects of the system's processes:

• PID : Process ID, a unique identifier for each process.
• TTY : Terminal type associated with the process.
• TIME : Total CPU time used by the process.
• CMD : The command that started the process.

To display a snapshot of current processes, use ps :

The ps command has options to change how it works:

• -e - Show all processes
• -f - Show detailed information
• -u - Show processes for a specific user
• -a - Show all processes with a terminal
• -x - Show processes without a terminal

The -e option allows you to show all processes.

The -f option allows you to show detailed information.

The -u option allows you to show processes for a specific user.

The -a option allows you to show all processes with a terminal.

The -x option allows you to show processes without a terminal.

Options can be combined to provide more detailed output. For example, ps -ef shows all processes with detailed information.