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<div class="hidden-warning"><a href="https://docs.haskellstack.org/"><img src="https://cdn.jsdelivr.net/gh/commercialhaskell/stack/doc/img/hidden-warning.svg"></a></div>
# The `stack run` command
~~~text
stack run [-- ARGUMENT(S) (e.g. stack run -- file.txt)]
[--[no-]ghc-package-path] [--[no-]stack-exe]
[--package PACKAGE] [--rts-options RTSFLAG] [--cwd DIR]
~~~
`stack run` builds a project executable and runs it. If the command has a first
argument and it is recognised as the name of an executable component of a
project package then that is built. Otherwise, the project's first executable is
built. If the project has no executables Stack reports no executables found as
an error.
!!! note
To identify a project's first executable, and search for the name of an
executable component, Stack lists the executable components, in order, for
each package, listed in order. For example:
`packageA:a-exe` < `packageA:b-exe` < `packageB:a-exe` < `packageB:b-exe`
Everything after `--` on the command line is interpreted as a command line
argument to be passed to what is run, other than a first argument recognised as
the name of an executable component of a project package.
By default:
* the `GHC_PACKAGE_PATH` environment variable is set for the subprocess. Pass
the `--no-ghc-package-path` flag to not set the variable; and
* the `STACK_EXE` environment variable is set with the path to Stack. Pass the
`--no-stack-exe` flag to not set the variable.
The `--cwd` option can be used to set the working directory before the
executable is run.
The `--package` option (which can be specified multiple times) can be used to
add a package name to build targets.
The `--rts-options` option (which can be specified multiple times) can be used
to pass a list of GHC's
[runtime system (RTS) options](https://downloads.haskell.org/~ghc/latest/docs/users_guide/runtime_control.html#)
to the executable when it is run. (The `+RTS` and `-RTS` must not be included.)
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