Other common preprocessor commands in C are:

1. #define: Defines a macro, which can be a constant or a function-like macro. It allows for textual substitution in the code.
2. #undef: Undefines a macro, removing its definition so that it can be redefined or used without its previous definition.
3. #include: Includes the contents of a specified file into the current file, enabling code reuse and modularity.
4. #if: Begins a conditional compilation block based on an expression. It allows code to be included or excluded depending on whether the expression evaluates to true or false.
5. #elif: Provides additional conditional compilation blocks following an #if or #elif block. It checks a new condition if the previous conditions were false.
6. #else: Specifies an alternative block of code to be included if none of the preceding #if or #elif conditions are true.
7. #endif: Ends a conditional compilation block started by #if, #elif, or #else.
8. #line: Changes the line number and filename reported by the compiler for error and warning messages. This can be useful for debugging preprocessed code.
9. #error: Generates a compile-time error with a specified message. This is useful for ensuring that certain conditions are met during compilation.
10. #pragma: Provides a way to issue special instructions to the compiler. The behavior of #pragma is compiler-specific and can be used for various purposes, such as controlling optimization or warning settings.
11. #warning: Generates a compile-time warning with a specified message. This can be used to alert the developer of potential issues or important information.

These preprocessor commands help manage code compilation and modularity, allowing for greater control over the build process and code organization.