Collection of small scripts that modify input received via shell pipe
Pipe Tool Kit
This tool kit is an attempt to compile a set of tools I’ve created to solve problems for La Quadrature du Net. Those tools are designed to works with unix shell pipe. They follow the unix philosophy and aim to stay simple.
I’m going to try to keep them at least a bit documented but since I’m always in an hurry I can’t guaranteed this will always be the case.
You can have an idea of the power of this kind of problems solving approach here: http://blog.worlddomination.be/microblogging/ (this tuto doesn’t features those tools for the moment).
For organisation reason all the commands starts with the letter “p”.
There is place for a LOTS of ameliorations, most of those tools are very simplistic and could be generalised (for example pdetinyfy or purltitle could be apply to each urls of a sentence, purls could use regex and could be generalised for anything by accepting regex as an argument).
It’s possible I’m reinventing the wheel for some of those commands. Don’t hesitate to tell me if it’s the case.
pipetk: list the available commands with the informations bellow.
puniq: eliminate duplications in real time via a shell unix pipe.(| sort | uniq waits for the full stream to be completed and also sort it, therefor it, for example, won’t works between a rsstail|feedstail and an ii file). Example:
$ feedstail -u http://reddit.com/.rss | puniq
pmerge: open a named pipe and write to stdout everything written in the named pipe. The first argument given is the name of the named pipe. It doesn’t managed in any way the possible conflicts between multiple process that write on that pipe at the same time. Silly example:
$ pmerge PIPE > irc.freenode.net/#laquadrature & echo "pouet" > PIPE
purls: really simple url extracting tools. It split each line it receives by white space then display on a new line each words that starts with either “http” or “https”. Example:
$ echo "there is 2 urls in this sentence: this one http://blog.worlddomination.be and this one http://laquadrature.net" | purls http://blog.worlddomination.be http://laquadrature.net
pdetinyfy: get the real url of a shortened url. Works only by receiving one url per line. Example:
$ echo "http://ur1.ca/4110r" | pdetinyfy http://laquadrature.net echo "foo http://ur1.ca/4110r bar" | pdetinyfy # won't work echo "foo http://ur1.ca/4110r bar" | purls | pdetinyfy # use this instead http://laquadrature.net
purltitle: get an url in input and output the url followed by it’s title. Works only by receiving one url per line. For the moment will miserably fail if it doesn’t managed to connect to the website. Example:
$ echo "http://laquadrature.net" | purltitle http://laquadrature.net La Quadrature du Net | Internet et Libertés
plag: slow down the displaying of a stream by sleeping a give time beetwen each line Can have the number of seconds the sleep as arg (accept float value). Example:
dmseg | plag
dmesg | plag 60
All those tools are released under the GNU General Public License v3 or later.
For any feedback you can contact me at <cortex at worlddomination dot be>.
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