pw is Pipe Watch, a utility that continuously reads lines of text from a pipe or pipe-like source, passes them through a FIFO buffer, and maintains a display based on the occasional sampling of the contents of the FIFO buffer, with useful features such as triggering and filtering.

With pw you can:

• Interactively apply and remove filters on-the-fly, without interrupting the source.

• Make recurring patterns in the stream appear to ``freeze'' on the screen, using triggers.

• Prevent the overwhelming amount of output from a program from flooding the terminal, while consuming all of that output so that the program isn't blocked. pw can pause its display updates entirely.

• Juggle multiple shell background jobs that produce output, yet execute indefinitely without blocking. When pw runs as part of a shell background job, it continues to consume input, process filters and take snapshots, without displaying anything. When put into the foreground again, display resumes.

collectd gathers metrics from various sources such as the operating system, applications, log files and external devices, and stores this information or makes it available over the network. Those statistics can be used to monitor systems, find performance bottlenecks (i.e., performance analysis) and predict future system load (i.e., capacity planning).

This package provides a utility to report system wide file access events from all running processes. Its main purpose is to find processes which keep waking up the disk unnecessarily and thus prevent some power saving.

battop is an interactive viewer, similar to top, htop and other *top utilities, but showing the (potentially multiple) batteries installed in a notebook.

The prometheus_client package supports exposing metrics from software written in Python, so that they can be scraped by a Prometheus service.

Metrics can be exposed through a standalone web server, or through Twisted, WSGI and the node exporter textfile collector.

This package provides a AFK watcher for ActivityWatch.

This package provides the notify library for ActivityWatch.

This package provides the core library for ActivityWatch.

Nagios is a host, service, and network monitoring program written in C. CGI programs are included to allow you to view the current status, history, etc. via a Web interface. Features include:

• Monitoring of network services (via SMTP, POP3, HTTP, PING, etc).

• Monitoring of host resources (processor load, disk usage, etc.).

• A plugin interface to allow for user-developed service monitoring methods.

• Ability to define network host hierarchy using "parent" hosts, allowing detection of and distinction between hosts that are down and those that are unreachable.

• Notifications when problems occur and get resolved (via email, pager, or user-defined method).

• Ability to define event handlers for proactive problem resolution.

• Automatic log file rotation/archiving.

• Optional web interface for viewing current network status, notification and problem history, log file, etc.

This package provides a Prometheus exporter for PostgreSQL server metrics.

This package provides a tray icon for ActivityWatch.

GKrellM is a single process stack of system monitors which supports applying themes to match its appearance to your window manager, Gtk, or any other theme.

dgop is a system monitoring tool. It supports cursor-based sampling of CPU/memory/disk/network, plus an optional REST API server. It supports cursor-based sampling for building real-time monitoring tools like htop. Instead of relying on instantaneous snapshots, it may track system state changes over time for more accurate CPU usage calculations and network/disk rates.

zabbix-cli is a command-line client for the Zabbix monitoring system. It can configure and display various aspects of Zabbix through a text-based interface.

This package provides the ActivityWatch server, for secure storage and retrieval of all your quantified self data.

This package contains a Prometheus exporter for the TEMPer sensor devices.

This package provides a distributed monitoring solution (client-side agent)

This package provides a file system monitor.

This package provides a X11 window watcher for ActivityWatch.

darkstat is a packet sniffer that runs as a background process, gathers all sorts of statistics about network usage, and serves them over HTTP. Features:

• Traffic graphs, reports per host, shows ports for each host.

• Embedded web-server with deflate compression.

• Asynchronous reverse DNS resolution using a child process.

• Small. Portable. Single-threaded. Efficient.

• Supports IPv6.

This package provides a daemon that monitors device power levels, notifying the user and optionally running a command when it reaches user-configured power thresholds. This can be used to force powering off a laptop when the battery gets below critical levels, instead of damaging the battery.

This package provides a distributed monitoring solution (client-side agent)

This package provides the client library for ActivityWatch.

Moreutils is a collection of general-purpose command-line tools to augment the traditional Unix toolbox.