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underscore to camelcase

Terminal - underscore to camelcase
echo "this_is_a_test" | sed -r 's/_([a-z])/\U\1/g'
2014-04-03 14:21:37
User: senorpedro
Functions: echo sed
2
underscore to camelcase

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
echo thisIsATest | sed -E 's/([A-Z])/_\L\1/g'
2014-05-07 14:16:58
User: Damiii
Functions: echo sed
Tags: sed
4

For mac users !

echo thisIsATest | sed -r 's/([A-Z])/_\L\1/g'
2014-04-11 13:36:08
User: flatcap
Functions: echo sed
Tags: sed
1

Convert a camelCase string into snake_case.

To complement senorpedro's command.

Know a better way?

If you can do better, submit your command here.

What others think

Mac OSX has an older version of sed so some expressions don't work as well... install gnu-sed using brew.

brew install gnu-sed
Comment by mogga 43 weeks and 3 days ago

Your point of view

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