fish-spark 
▁▂▃▅▂▇ in your fish shell.
Spark is a sparkline generator for the fish shell. It's an unofficial port of the original spark.sh with options for adjusting the minimum and maximum values of the input and faster execution time.
Installation
Install with Fisher (recommended):
fisher add jorgebucaran/fish-spark
Not using a package manager?
Copy spark.fish to any directory on your function path.
set -q XDG_CONFIG_HOME; or set XDG_CONFIG_HOME ~/.config
curl https://git.io/spark.fish --create-dirs -sLo $XDG_CONFIG_HOME/fish/functions/spark.fish
To uninstall, remove the file.
System Requirements
- fish 2.0
Usage
You have a set of numbers which can be comma-delimited, separated by spaces, newlines, or tabs. What's a simple way to visualize these data on the terminal? Sparklines!
$ spark 0 1 2 3
▁▃▅█
Spark can read from standard input as well. Here is a random sequence of numbers.
$ seq 80 | sort -R | spark
▁▅▄▄▂▁▂▅▂▇▄▅▄▃▃▄▁▂▃▁▁▅▄▇▃▆▆▂▄▄▂▆▆▆▇▃▆▇▁▄▃▄▆▅▄█▅▁▃▆▁▁▁▂▆▁▅▅▇▇▅▇▅▇▃▆▄▂▇▃▃▅▂▁▇▆▂▇▂▃
Spark calculates the smallest and largest numbers from your dataset to calibrate the height of the sparklines. To force these values to anything else use --min=<number> and --max=<number>.
$ spark 10 20 30 40 50
▁▂▄▆█
$ spark --max=100 -- 10 20 30 40 50
▁▂▃▃▄
Want to see what else Spark can do? Check out Wicked Cool Usage and prepare to be amazed!
Performance
Spark is up to 400x faster (that's not a typo!) than the original spark.sh, reading and writing relatively large datasets under milliseconds.
$ time fish -c "seq 10000 | sort -R | spark" >/dev/null
0.19 real 0.19 user 0.01 sys
$ time fish -c "seq 10000 | sort -R | spark.sh" >/dev/null
86.15 real 84.44 user 0.53 sys
