Comments on: Convert camelCase to Underscores Using sed

By: Oran

Oran — Thu, 08 Oct 2009 04:18:51 +0000

Another solution to convert camel_case to CamelCase:
sed -e ‘s/\(^\|_\)\(.\)/\U\2/g’

Manish Sinha — Wed, 02 Sep 2009 18:50:30 +0000

AFAIK

TcpListener– this is PascalCase
tcpListener — this is camelCase

Michael — Sun, 05 Jul 2009 11:18:15 +0000

I look forward to a full solution.

Thanks again Amir.

Amir Watad — Fri, 03 Jul 2009 09:11:54 +0000

This does half of the job:

1	sed -e 's/\([a-z]\)\([A-Z]\)/\1_\2/g' -e 's/^_\([a-zA-Z]\)/\1/g' file.txt

Will try to find a complete solution as soon as I have time.

Michael — Tue, 30 Jun 2009 10:33:12 +0000

Thanks for sharing this Amir.

Would it be possible to carry out the following in one script or command?

camelCase => camel_case
camelCaseLong => camel_case_long
camelCaseXYZ => camel_case_xyz

CamelCase => Camel_Case
CamelCaseLong => Camel_Case_Long
CamelCaseXYZ => Camel_Case_XYZ

I’m open to all suggestions.

Many thanks,

Michael