Show HN: Simple tool for creating command-line bar charts

#1

Post by jwmhjwmh » Sat, Aug 28, 2021, 5:00 PM UTC

Show HN: Simple tool for creating command-line bar charts
github.com

Re: Show HN: Simple tool for creating command-line bar charts

#2

Post by the_arun » Sat, Aug 28, 2021, 6:50 PM UTC

Anyway we could use this with realtime rendering? For eg: I pipe data from top command to this script to see graphs/charts change it dynamically?

Re: Show HN: Simple tool for creating command-line bar charts

#3

Post by jwmhjwmh » Sat, Aug 28, 2021, 7:14 PM UTC

the_arun wrote: post #2

Anyway we could use this with realtime rendering? For eg: I pipe data from top command to this script to see graphs/charts change it dynamically?

You would probably need a wrapper script to do this. The script could periodically clear the screen and call "barchart" with the new input data, re-rendering the chart from scratch.

"barchart" is a very simple shell script that doesn't do much on its own.

Re: Show HN: Simple tool for creating command-line bar charts

#4

Post by ducktective » Sat, Aug 28, 2021, 8:02 PM UTC

Nice! There is also https://github.com/dkogan/feedgnuplot

Re: Show HN: Simple tool for creating command-line bar charts

#5

Post by johndough » Sat, Aug 28, 2021, 8:39 PM UTC

the_arun wrote: post #2

Anyway we could use this with realtime rendering? For eg: I pipe data from top command to this script to see graphs/charts change it dynamically?

Slightly relevant: The program "htop" displays CPU usage with bars on the command line. https://htop.dev/

Re: Show HN: Simple tool for creating command-line bar charts

#6

Post by 1vuio0pswjnm7 » Sat, Aug 28, 2021, 8:50 PM UTC

"The script should work with any POSIX shell."

Nice work!

Re: Show HN: Simple tool for creating command-line bar charts

#7

Post by johnchristopher » Sat, Aug 28, 2021, 9:10 PM UTC

the_arun wrote: post #2

Anyway we could use this with realtime rendering? For eg: I pipe data from top command to this script to see graphs/charts change it dynamically?

    watch -n1 ./barchart -w 80 data

Re: Show HN: Simple tool for creating command-line bar charts

#8

Post by ocimbote » Sat, Aug 28, 2021, 9:23 PM UTC

sh for arg parsing and configuration detection (cols). awk for the actual work.

No fluff. Straight to the point. Just Works.

Congrats to the author.

Re: Show HN: Simple tool for creating command-line bar charts

#9

Post by mihi » Sat, Aug 28, 2021, 9:27 PM UTC

ducktective wrote: post #4

Nice! There is also https://github.com/dkogan/feedgnuplot

Nice, this is exactly what I've been looking for for a while now. Especially the real-time streaming mode. Thanks for posting!

Re: Show HN: Simple tool for creating command-line bar charts

#10

Post by dunefox » Sat, Aug 28, 2021, 9:33 PM UTC

I would rather use this: https://github.com/Evizero/UnicodePlots.jl along with a little scripting.