Head-to-head · Command-Line Shells
Fish vs Dash
Fish leads on 1 check, Dash on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreFish · 8.7/10
- Free planboth
- Most featuresFish · 2 of 3
Fish scores higher on our rubric for command-line shells: 8.7 against 8.5 out of 10; our editors rank them #3 and #4.
Fish offers command completion; Dash doesn't.
Fish is the better fit for interactive users seeking suggestions and rich completion. Dash is the better fit for lightweight POSIX shell scripting on Linux.
- Fish fits best
Interactive users seeking suggestions and rich completion
- Dash fits best
Lightweight POSIX shell scripting on Linux
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Side by side
| Feature | Fish 8.7/10 Visit ↗ | Dash 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.7 | 8.5 |
| Ranking | #3 in Command-Line Shells | #4 in Command-Line Shells |
| Best for | Interactive users seeking suggestions and rich completion | Lightweight POSIX shell scripting on Linux |
| Pricing model | Free | Free |
| Starting price | Not published | Not published |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted |
| Platforms | macOS, Linux, Windows | Linux |
| Support | Docs, Community | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features Fish 2/3 · Dash 1/3 | ||
| Package manager | — | — |
| Config file support | ✓ | ✓ |
| Command completion | ✓ (best) | — |
| Specs | ||
| Supported platforms | macOS, Linux, BSD, and Windows environments (WSL, Cygwin, MSYS2) | linux |
| Scripting language | fish | POSIX sh shell language |
| Our review | ||
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| Our verdict | Fish is a free, open-source command-line shell for people who value interactive guidance while working in a terminal. It runs on macOS, Linux, BSD, and Windows environments including WSL, Cygwin, and MSYS2. Syntax highlighting,… Read the review → |
Dash is a compact, open-source command interpreter and POSIX-compliant implementation of /bin/sh, distributed by the Debian Project. It is suited to Linux users and administrators who need a lightweight shell for running scripts or… Read the review → |
Strengths and trade-offs
Fish — where it wins
- Highlights command syntax and suggests commands from history, completions, and file paths.
- Offers navigable tab completion plus general and command-specific scripted completions.
- Includes fish scripting, built-in help, and browser-based configuration.
Where it doesn't
- Uses its own fish scripting language rather than a listed alternative shell language.
- Support channels are documentation and community.
- Does not include AI features or a package manager.
Dash — where it wins
- Implements POSIX /bin/sh for portable shell scripts
- Supports pipelines, redirection, expansions and shell builtins
- Offers interactive job control plus Vi and Emacs editing modes
Where it doesn't
- Linux platform coverage only
- No command-completion support
- Focused on POSIX sh rather than broader shell features
- Fish8.7/10 · Free plan
Fish pairs history-based suggestions with rich completion and a browser-based configuration interface.
Visit FishFull verdict → - Dash8.5/10 · Free plan
A focused, open-source shell for POSIX scripting and everyday command execution on Linux.
Visit Debian ProjectFull verdict →
More comparisons
- Bash vs Fish
- Bash vs Dash
- Zsh vs Fish
- Zsh vs Dash
- Fish vs BusyBox ash
- Fish vs OpenBSD KornShell (ksh)
- Fish vs tcsh
- Fish vs PowerShell
All Command-Line shells comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update