System Monitoring

Commands for monitoring system resources and running processes.

top - Task Manager

View running processes and system resources in real-time:

top

Output shows:

• System uptime and load average

• Running tasks and CPU usage

• Memory and swap usage

• Process list (sorted by CPU usage by default)

Press q to exit.

btop - Advanced Resource Monitor

For a more detailed, interactive, and colorful interface, use btop:

ml btop
btop

Press Esc or q to exit.

Navigation

Key	Action
↑ / ↓	Move between sections
← / →	Change active graphs
1	Toggle CPU/GPU graph visibility
2	Toggle Memory graph visibility
3	Toggle Network graph visibility
4	Toggle Running Process visibility
5, 6, … , X	Toggle GPU X graph visibility \(_{(where X=GPU+5)}\)
Esc Or m	Open menu
f	filter processes
Ctrl + C Or q	Exit btop

Note

Vim-style keybindings can be enabled in the options menu.

Configuration

Customize appearance and behavior by editing the config file:

vim ~/.config/btop/btop.conf

Or press M (capital M) inside btop to open the options menu.

Features

• CPU Monitor: Real-time CPU usage per core

• Memory Monitor: RAM and swap usage

• Disk Monitor: I/O statistics

• Network Monitor: Upload/download speeds

• Process List: Sort and filter running processes

• Tree View: See parent-child process relationships

Resources

• Project page: https://github.com/aristocratos/btop

• Command-line options: btop --help

Other Monitoring Commands

free -h            # Memory usage (human-readable)
uptime             # System uptime and load