zachmargolis/margs-util

Some of my common helper scripts

Margs Util

Some scripts I use, most of them have --help if you run them for more options.

Installation

For now, it's a gem, but unpublished. To build and install locally:

1. Clone the repo
2. gem build margs-util.gemspec
3. gem install margs-util-*.gem

Scripts

• m-extract
• gif-overlay
• pretty-json
• rack-query

m-extract

Extract input (usually from a log file) into a CSV-like output. Supports grabbing fields by index, or by key in the form key=value. Great for parsing logs!

$ m-extract --index 1 --key key <<EOS
col0 col1 key=yay bar=nope
woo0 woo1 key=woo
EOS
index_1,key
col1,yay
woo1,woo

gif-overlay

Overlays text at the bottom of a GIF. convert is just too much to remember on its own, so I wrote this to help myself out.

gif-overlay --text "THIS IS AWESOME" input.gif output.gif

(requires ImageMagick to be installed)

pretty-json

Pretty-prints JSON

$ pretty-json '{"woo":true}'
{
  "woo": true
}

rack-query

Pretty-prints the query part of a URL

$ rack-query 'https://example.com/foo/bar/baz?x=y&z[]=1&z[]=2#wooo'
https://example.com/foo/bar/baz
{"x"=>"y", "z"=>["1", "2"]}

tmux-args

Opens a pane in tmux with the given argument entered, also sets synchronize-panes

$ tmux-args a b c d