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Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
Stupid Shell Tricks with Apache Accumulo
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Stupid Shell Tricks with Apache Accumulo

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  • 1. 1 Stupid Shell Tricks With Apache Accumulo Mike Drob madrob@cloudera.com @mikhaildrob
  • 2. About Mike 2 • Dev at Cloudera (~ 6 months) • Accumulo Committer (~ 1 year) • LEGO® Engineer (~ 20 years) http://upload.wikimedia.org/wikipedia/commons/0/00/LEGO_Minifigure_skating_through_town.jpg
  • 3. Survey 3 • Who knows… • Who this guy is? • That 1.6.0 is released! • Who has… • Used Accumulo? • Used the Shell? http://en.wikipedia.org/wiki/File:Concentration_Hugh_Downs_1961.JPG
  • 4. 4 http://en.wikipedia.org/wiki/File:Bubalus_mindorensis_by_Gregg_Yan_01.jpg
  • 5. New Shell Features 5 • Password Indirection • Command Interruption • History Search/Expansion • Provide Extensions http://www.flickr.com/photos/cygnus921/2581020296/
  • 6. Password Indirection 6 • Providing password on command line is BAD • …but typing long passwords is hard. • Exposed to ps and other tools • Solution: provide alternate sources • File on disk • Environment Variable • Custom Tokens
  • 7. Command Interruption 7 • Long running commands are a pain. • Ctrl-C used to kill the whole shell… • Now it just kills the current command! https://www.flickr.com/photos/smaedli/3271558744/
  • 8. History Search/Expansion 8 • Many bash-similarities • Ctrl-R to search history • Use ! To expand commands http://en.wikipedia.org/wiki/File:Trilobite_Ordovicien_8127.jpg
  • 9. 9
  • 10. 10 Thank You! Mike Drob, Cloudera @mikhaildrob (p.s. we’re hiring)

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