Dash

This manual is for Dash version 2.20.0.

Copyright © 2012–2026 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with the Invariant Sections being “GNU General Public License,” and no Front-Cover Texts or Back-Cover Texts. A copy of the license is included in the section entitled “GNU Free Documentation License”.

Table of Contents

• 1 Installation

  • 1.1 Using in a package
  • 1.2 Fontification of special variables
  • 1.3 Info symbol lookup

• 2 Functions

  • 2.1 Maps
  • 2.2 Sublist selection
  • 2.3 List to list
  • 2.4 Reductions
  • 2.5 Unfolding
  • 2.6 Predicates
  • 2.7 Partitioning
  • 2.8 Indexing
  • 2.9 Set operations
  • 2.10 Other list operations
  • 2.11 Tree operations
  • 2.12 Threading macros
  • 2.13 Binding
  • 2.14 Side effects
  • 2.15 Destructive operations
  • 2.16 Function combinators

• 3 Development

  • 3.1 Contribute
  • 3.2 Contributors

• Appendix A GNU Free Documentation License

• Appendix B GNU General Public License

• Index