Head-to-head · Command-Line Shells
Zsh vs Dash
Zsh 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 scoreZsh · 8.8/10
- Free planboth
- Most featuresZsh · 2 of 3
Zsh scores higher on our rubric for command-line shells: 8.8 against 8.5 out of 10; our editors rank them #2 and #4.
Zsh offers command completion; Dash doesn't.
Zsh is the better fit for users who want advanced Unix shell customization. Dash is the better fit for lightweight POSIX shell scripting on Linux.
- Zsh fits best
Users who want advanced Unix shell customization
- Dash fits best
Lightweight POSIX shell scripting on Linux
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Side by side
| Feature | Zsh 8.8/10 Visit ↗ | Dash 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.8 | 8.5 |
| Ranking | #2 in Command-Line Shells | #4 in Command-Line Shells |
| Best for | Users who want advanced Unix shell customization | 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 | Linux, macOS, Windows | Linux |
| Support | Community, Docs | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features Zsh 2/3 · Dash 1/3 | ||
| Package manager | Not published | — |
| Config file support | ✓ | ✓ |
| Command completion | ✓ (best) | — |
| Specs | ||
| Supported platforms | Unix; Windows via Cygwin | linux |
| Scripting language | Zsh shell scripting language | POSIX sh shell language |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Zsh is a freely available command interpreter designed for interactive use and scripting. It suits people who want to tailor a Unix command-line environment, from individual users to teams across company sizes. Its shell scripting language… 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
Zsh — where it wins
- Programmable completion and multi-line command editing
- Advanced filename globbing, arrays, arithmetic, and spelling correction
- Customizable prompts and options through startup files
Where it doesn't
- Windows support is through Cygwin rather than a standalone current port
- Requires compiling from source on modern Unix systems
- Community and documentation are the listed support channels
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
- Zsh8.8/10 · Free plan
A free, customizable shell for users who want advanced command-line control.
Visit ZshFull 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 Zsh
- Bash vs Dash
- Zsh vs Fish
- Zsh vs BusyBox ash
- Zsh vs OpenBSD KornShell (ksh)
- Zsh vs tcsh
- Zsh vs PowerShell
- Fish vs Dash
All Command-Line shells comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update