Creates PodFeeds.txt, a file that lists the URLs of rhythmbox podcasts from the rhythmdb.xml file.

grep -A 5 -e podcast-feed rhythmdb.xml | grep -e "<location>" | sed 's: *</*[a-t]*>::g' > PodFeeds.txt
The first grep any line with pod-feed in it plus the following five lines. The second grep throws out any line not containing . sed removes the leading four spaces then and the trailing . Using a colon as sed's separating character avoids having to escape the /. Works ok with Mythbuntu 9.04 (used mostly as a three line bash script).
Sample Output 
dogflap@dogflap-desktop:~/Desktop$ cat PodFeeds.txt
http://leoville.tv/podcasts/mbw.xml
http://www.abc.net.au/rn/podcast/feeds/science.xml
http://www.abc.net.au/rn/podcast/feeds/lnl.xml
http://leoville.tv/podcasts/floss.xml
http://www.tuxradar.com/files/podcast/podcast_ogg.rss
http://rssnewsapps.ziffdavis.com/audioblogs/crankygeeks/cg.audio.xml
http://www.nature.com/nature/podcast/rss/nature.xml
http://leoville.tv/podcasts/twit-ogg.xml
http://distrowatch.com/news/podcast.xml
http://leoville.tv/podcasts/sn.xml
http://downloads.bbc.co.uk/podcasts/radio4/fricomedy/rss.xml

1
By: dogflap
2010-05-22 05:50:45
grep sed bash
2
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What Others Think

In the description elements in angle brackets have not appeared. I'll try now with quotes. line 3 ends 'not containing ""' line 4 ends 'the trailing ""' Best regards dogflap.
dogflap · 830 weeks and 1 day ago
Well that attempt to get angle brackets into the description did not work. Third try. Line 3 ends in "location" enclosed in angle brackets. Line 4 should end in "/location" enclosed in angle brackets. best regards dogflap
dogflap · 830 weeks and 1 day ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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