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Asked: 2026-05-26T10:57:35+00:00

I have a list of strings like this: purpcl (purpose clause modifier), quantmod (quantier

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I have a list of strings like this:

purpcl ("purpose clause modifier"),
quantmod ("quantier modifier"),
rcmod ("relative clause modifier"),

Is it possible to make them like this:

PURPCL ("purpose clause modifier"),
QUANTMOD ("quantier modifier"),
RCMOD ("relative clause modifier"),
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1 Answer

  1. Editorial Team

    It is possible with some tools, such as sed:

    $ sed -r 's/^([^(]+)/\U\1/'
purpcl ("purpuse clause modifier"),
PURPCL ("purpuse clause modifier"),

    But you should definitely not use regular expressions for this kind of processing.

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