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ptghci — Interactive Haskell REPL with syntax highlighting, multiline editing, and real-time type display. Se

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the ptghci command: Interactive Haskell REPL with syntax highlighting, multiline editing, and real-time type display. See also: ghci. More information: <https://github.com/litxio/ptghci>.

Solution

ptghci — Interactive Haskell REPL with syntax highlighting, multiline editing, and real-time type display. See also: ghci. More information: <https://github.com/litxio/ptghci>.

Start an interactive session:

ptghci

Start an interactive session and load a Haskell file:

ptghci {{path/to/file.hs}}

[Interactive] List past commands from the current session:

%past

[Interactive] List past commands including previous sessions:

%past -n {{number}}

[Interactive] Re-run specific commands from history:

%rerun {{3,4-5,p8}}

[Interactive] Search Hoogle for an identifier:

%hoogle {{identifier}}

[Interactive] Change the syntax highlighting style:

%style {{style_name}}

Code Snippets

Start an interactive session

ptghci

Start an interactive session and load a Haskell file

ptghci {{path/to/file.hs}}

[Interactive] List past commands from the current session

%past

[Interactive] List past commands including previous sessions

%past -n {{number}}

[Interactive] Re-run specific commands from history

%rerun {{3,4-5,p8}}

Context

tldr-pages: common/ptghci

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