λ ghcup --help
ghcup 0.0.7
GHC up toolchain installer
USAGE:
ghcup [FLAGS] <SUBCOMMAND>
FLAGS:
-v, --verbose Enable verbose output
-h, --help Prints help information
-V, --version Prints version information
-w, --wget Use wget instead of curl
-c, --cache Use "/Users/gupi/.ghcup/cache" for caching tarballs
(these will not be removed by ghcup)
SUBCOMMANDS:
install Install GHC
set Set currently active GHC version
list Show available GHCs and other tools
upgrade Upgrade this script in-place
rm Remove an already installed GHC
install-cabal Install cabal-install
debug-info Print debug info (e.g. detected system/distro)
changelog Show the changelog of a GHC release (online)
print-system-reqs Print an approximation of system requirements
DISCUSSION:
ghcup installs the Glasgow Haskell Compiler from the official
release channels, enabling you to easily switch between different
versions.