GitHub Case-Sensitive Code Search

You can search for case-sensitive strings in GitHub:

/(?-i)my_var/

Example: https://github.com/search?q=/(?-i)\bmy_var\b/&type=code

It’s even more powerful when you realize it has full support for regular expressions (e.g., adding \b word boundaries to match exact words).

For more details, see:

• Understanding GitHub Code Search syntax
• Specifying Modes Inside The Regular Expression