ITcard.org
Toolbox / Reference

Category

Reference

See this section on the full toolbox page alongside every other category.

Reference

Chmod calculator

Convert between octal and rwx permission notation.

 Reference

Common ports reference

Searchable list of well-known and registered network ports.

 Reference

HTTP status code reference

Every HTTP status code with a plain-English explanation.

 Reference

MIME types reference

Look up the MIME type for a file extension, or vice versa.

 Reference

Linux commands reference

Searchable reference for common Linux commands with examples.

 Reference

Git cheatsheet

Searchable reference for common Git commands.

 Reference

Regex cheatsheet

Common regular expression patterns and syntax reference.