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https://github.com/aantn/smag

Show Me A Graph - Command Line Graphing
https://github.com/aantn/smag

chart cli command-line console cpu graph kubernetes pipeline plot realtime stdout

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Show Me A Graph - Command Line Graphing

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README

        

# smag - show me a graph!

Easily create graphs from cli commands and view them in the terminal. Like the `watch` command but with a graph of the output.

# Demo

![](./images/readme-example.gif)

Table of Contents
=================

* [Install :cd:](#install-cd)
* [Usage ](#usage)

# Install :cd:

## Install from source
```bash
git clone https://github.com/aantn/smag.git
cargo install --path .
```
## Install from binaries
Binaries for Mac, Windows, and Linux are available under Releases.

# Usage

Just run `smag [shell_cmd]` or `smag [cmd1] [cmd2]` if you want to graph multiple commands at once.
You can control how often the graph updates with the `-n` flag. You can also graph a derivative of the command's output using `-d`.

`smag` can graph any command which outputs an integer or float. Any whitespace before/after the number is trimmed automatically.

Pull requests for more features or fixes are welcome.

## Examples
* Graph number of processes: `smag "ps aux | wc -l"`
* Graph number of bash processes and ssh processes as two separate lines: `smag "ps aux | grep ssh | wc -l" "ps aux | grep bash | wc -l"`
* Graph number of running Kubernetes pods: `smag "kubectl get pods -A | grep Running | wc -l"`
* Graph CPU temperature on Raspberry Pi 5: `sudo -v && smag -n 0.5 -y °C "sudo vcgencmd measure_temp | tr -d -c 0-9."`

## Full Usage

```bash
$ smag --help
smag 0.6.0
Show Me A Graph - Like the `watch` command but with a graph of previous values.

USAGE:
smag [FLAGS] [OPTIONS] ...

FLAGS:
-d, --diff Graph the diff of subsequent command outputs
--help Prints help information
-V, --version Prints version information

OPTIONS:
-h, --history Specify number of points to 'remember' and graph at once for each commands
[default: 100]
-n, --interval Specify update interval in seconds. [default: 1.0]
-y, --y-label Label/units for y-axis (e.g. 'MB', 'Seconds') [default: ]

ARGS:
... Command(s) to run
```

## Inspiration
**smag was inspired and based on code from the wonderful [gping](https://github.com/orf/gping) tool by Tom Forbes**

# Other tools

I also work on [Robusta](https://github.com/robusta-dev/robusta) - better Prometheus based alerts for Kubernetes.