The Unix operating system is a general purpose OS that was developed by Bell Labs in the late 1960s and today exists in various versions. Important note: This tag is exclusively for programming questions that are directly related to Unix; general software issues should be directed to the Unix & Linux Stack Exchange site or to Super User.

R is a free, open-source programming language and software environment for statistical computing, bioinformatics, visualization and general computing. Provide minimal, reproducible, representative example(s) with your questions. Use dput() for data and specify all non-base packages with library calls. Do not embed pictures for data or code, use indented code blocks.

Mathematics is the study of quantity, structure, space, and change. Any math questions on this site should be programming related.

This tag is for questions about the features and functionality of text editors, source code editors and other programs specifically designed for modifying plain text files used in computer programming. Questions asking us to recommend or find an editor are strictly off-topic.

Assembly language (asm) programming questions. BE SURE TO ALSO TAG with the processor and/or instruction set you're using, as well as the assembler. WARNING: For .NET assemblies, use the tag [.net-assembly] instead. For Java ASM, use the tag [java-bytecode-asm] instead.

This tag is for questions on multiple areas that are not listed. Questions asking us to recommend or find an editor are completely off topic.