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cheatsheet-tldr/tldr/ghc
2025-05-06 00:19:54 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# ghc
> The Glasgow Haskell Compiler.
> Compiles and links Haskell source files.
> More information: <https://downloads.haskell.org/ghc/latest/docs/users_guide/usage.html>.
- Find and compile all modules in the current directory:
`ghc Main`
- Compile a single file:
`ghc {{path/to/file.hs}}`
- Compile using extra optimization:
`ghc -O {{path/to/file.hs}}`
- Stop compilation after generating object files (.o):
`ghc -c {{path/to/file.hs}}`
- Start a REPL (interactive shell):
`ghci`
- Evaluate a single expression:
`ghc -e {{expression}}`