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Content Tagged with Unix + tools

Quite some time ago I wrote about using xsltproc to process xml on the command line. Thank fully someone pointed out XMLStarlet.  I now use XMLStarlet almost every day.  I work with a variety of REST based API’s gather information. XMLStartlet along with a simple for loop or xargs gives you an exceedingly powerful set of tools.

Here is a quick introduction into the power of XMLStarlet. This is just a teaser as I cannot share the data I work with. However, you should be able to see the power of this tool.

All the links from my RSS feed:

$ curl -s 'http://bashcurescancer.com/rss/' | xml sel -t -m '//link' -v '.' -n
http://bashcurescancer.com

http://bashcurescancer.com/processing-xml-on-the-command-line.html
http://bashcurescancer.com/do-not-close-stderr.html

http://bashcurescancer.com/prepend-to-a-file-with-sponge-from-moreutils.html

http://bashcurescancer.com/bug-in-curl-is-fixed.html

http://bashcurescancer.com/using-kill-to-see-if-a-process-is-alive.html

http://bashcurescancer.com/performance-testing-with-curl.html

http://bashcurescancer.com/new-command-prepend.html

http://bashcurescancer.com/shell-function-which-webserver-does-that-site-run.html

http://bashcurescancer.com/exposing-command-line-programs-as-web-services.html
http://bashcurescancer.com/wrapping-dynamic-languages-in-shell-without-an-extra-script.html

Or how about “Title: link”

$ curl -s 'http://bashcurescancer.com/rss/' | xml sel -t -m '//item' -v 'title' -o ': ' -v 'link' -n

Processing XML on the Command Line: http://bashcurescancer.com/processing-xml-on-the-command-line.html

Do not close stderr: http://bashcurescancer.com/do-not-close-stderr.html

prepend to a file with sponge from moreutils: http://bashcurescancer.com/prepend-to-a-file-with-sponge-from-moreutils.html

Bug in Curl is fixed: http://bashcurescancer.com/bug-in-curl-is-fixed.html

using kill to see if a process is alive: http://bashcurescancer.com/using-kill-to-see-if-a-process-is-alive.html

Performance testing - with curl: http://bashcurescancer.com/performance-testing-with-curl.html

New command: prepend: http://bashcurescancer.com/new-command-prepend.html

Shell Function - Which Webserver Does That Site Run?: http://bashcurescancer.com/shell-function-which-webserver-does-that-site-run.html

Exposing command line programs as web services: http://bashcurescancer.com/exposing-command-line-programs-as-web-services.html

Wrapping dynamic languages in shell without an extra script: http://bashcurescancer.com/wrapping-dynamic-languages-in-shell-without-an-extra-script.html

You may need to do some reading on xpaths and xsl stylesheets to use the full power of the tool.