Minimalistic terminal plotting

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Goal:

Create chart from csv. From a terminal, minimalistic style, no fancy stuff.

Toys:

.

For a quick plot, just use feedgnuplot. Goal achieved.

For more options, go crazy dive into gnuplot itself. Create HTML page using ansi2html.

  • ansi2html - If you want to create HTML page from the ANSI chart

Findings:

  • Put some ANSI color to gnuplot chart by set terminal ansi256.
  • For more control of the final HTML, create a separate .css ANSI color file with ansi2html -H > ansi.css

Comparison, with, and without ANSI

Without ANSI color:

With ANSI256 color:

The gnuplot script:

# Perabotan lenong. Setting gnuplot

# Set the legend inside the chart
set key inside

# Set the title. 'email' = variable passed from bash script
set title email

# Tell gnuplot the first column is a 'time'
set xdata time

# Define the format
set timefmt "%Y-%m-%d"

# Plot the x axis with date-month only
set format x "%m-%b"

# Set output to ANSI256 colour, and size
set terminal dumb ansi256 150,22

# Toy this if want to export to png
# set terminal png medium size 640,480

# Set y label
set ylabel "TIME" offset character 5,9

# Plot col 1 vs col 2, col 1 vs col 3
plot file using 1:2 with lines title "Checked In", '' using 1:3 with lines title "Marked 9:00AM"

CSV sample:

2020-03-17 08:10:36 09:00
2020-03-18 08:11:20 09:00
2020-03-19 07:34:21 09:00
2020-03-20 08:33:34 09:00
2020-03-23 09:31:57 09:00
2020-03-24 08:37:39 09:00
2020-03-26 07:32:05 09:00
...
...

Links: