Fun with terminal plotting JSON data at the command line
One of the great thing about unix is the ability to pipe multiple programs together to manipulate data. Plain, unstructured text is the most common type of data that is passed between programs, but these days JSON is becoming more popular.
I thought it would be fun to pipe together some command line JSON tools to do some stupid terminal tricks, like plotting a graph of system statistics, like CPU or memory utilization.
We can use jc (disclosure: I wrote jc), jq, and jp to pull the output of uptime and display a line graph like this:
In this post I'll show you how you can build a quick bar graph of the CPU utilization of the top processes right in the terminal. For more information on how to create the animated line graph above, see my blog post at blog.kellybrazil.com.
first, get jc, jq, and jp.
Then you can use this one-liner to graph the output of ps:
Fun stuff! jq is an awesome JSON tool for the cli and is a bit like sed or awk for JSON. You'll find lots of uses for manipulating JSON as more and more programs start to output in the format.
Last edited by kbrazil; 01-16-2020 at 04:39 PM..
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Hai Friends
I have installed FreeBSD in my system... I have installed it to work in text mode don't have the GUI. The default text color is Black background with White Foreground. I want it to be with Black background with Green Foreground. How could i do that.
Thanks in advance
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I have a set of data that looks similar to the following in UNIX:
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Hello,
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Hi Gurus,
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I will appreciate if anyone can help me to provide the solution...I can't use jq.
{
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Discussion started by: manas_ranjan
4 Replies
LEARN ABOUT DEBIAN
blaze-list
BLAZE-LIST(1) BlazeBlogger Documentation BLAZE-LIST(1)NAME
blaze-list - lists blog posts or pages in the BlazeBlogger repository
SYNOPSIS
blaze-list [-cpqrsCPSV] [-b directory] [-I id] [-a author] [-t title] [-T tag] [-d day] [-m month] [-y year] [-n number]
blaze-list -h|-v
DESCRIPTION
blaze-list lists existing blog posts or pages in the BlazeBlogger repository. Additionally, it can also display basic repository
statistics.
OPTIONS -b directory, --blogdir directory
Allows you to specify a directory in which the BlazeBlogger repository is placed. The default option is a current working directory.
-I id, --id id
Allows you to display a single blog post or a page with the specified id.
-a author, --author author
Allows you to list blog posts or pages by the selected author.
-t title, --title title
Allows you to list blog posts or pages with matching title.
-T tag, --tag tag
Allows you to list blog posts or pages with matching tag.
-d day, --day day
Allows you to list blog posts or pages from the specified day of a month. The value has to be in the "DD" form.
-m month, --month month
Allows you to list blog posts or pages from the specified month. The value has to be in the "MM" form.
-y year, --year year
Allows you to list blog posts or pages from the specified year. The value has to be in the "YYYY" form.
-n number, --number number
Allows you to specify a number of blog posts or pages to be listed.
-p, --page
Tells blaze-list to list pages.
-P, --post
Tells blaze-list to list blog posts. This is the default option.
-S, --stats
Tells blaze-list to display statistics.
-s, --short
Tells blaze-list to display each blog post or page information on a single line.
-r, --reverse
Tells blaze-list to display blog posts or pages in reverse order.
-c, --color
Enables colored output. When supplied, this option overrides the relevant configuration option.
-C, --no-color
Disables colored output. When supplied, this option overrides the relevant configuration option.
-q, --quiet
Disables displaying of unnecessary messages.
-V, --verbose
Enables displaying of all messages. This is the default option.
-h, --help
Displays usage information and exits.
-v, --version
Displays version information and exits.
EXAMPLE USAGE
List all blog post:
~]$ blaze-list
ID: 11 | 2010-07-05 | Jaromir Hradilek
Title: Join #blazeblogger on IRC
Tags: announcement
ID: 10 | 2009-12-16 | Jaromir Hradilek
Title: Debian and Fedora Packages
Tags: announcement
etc.
List all blog post in reverse order:
~]$ blaze-list -r
ID: 1 | 2009-02-10 | Jaromir Hradilek
Title: BlazeBlogger 0.7.0
Tags: release
ID: 2 | 2009-02-11 | Jaromir Hradilek
Title: BlazeBlogger 0.7.1
Tags: release
etc.
List all pages:
~]$ blaze-list -p
ID: 5 | 2009-02-10 | Jaromir Hradilek
Title: Downloads
ID: 4 | 2009-02-10 | Jaromir Hradilek
Title: Themes
etc.
List each blog post on a single line:
~]$ blaze-list -s
ID: 11 | 2010-07-05 | Join #blazeblogger on IRC
ID: 10 | 2009-12-16 | Debian and Fedora Packages
etc.
Display a short version of blog statistics:
~]$ blaze-list -Ss
There is a total number of 11 blog posts and 5 pages in the repository.
SEE ALSO blaze-config(1), blaze-add(1)BUGS
To report a bug or to send a patch, please, add a new issue to the bug tracker at <http://code.google.com/p/blazeblogger/issues/>, or visit
the discussion group at <http://groups.google.com/group/blazeblogger/>.
COPYRIGHT
Copyright (C) 2009-2011 Jaromir Hradilek
This program is free software; see the source for copying conditions. It is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Version 1.2.0 2012-03-05 BLAZE-LIST(1)
01-16-2020
