Output in std::process - Rust
Description: The output of a finished process.

## Output

# Struct Output

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    pub struct Output {
        pub status: ExitStatus,
        pub stdout: Vec<u8>,
        pub stderr: Vec<u8>,
    }

Expand description

The output of a finished process.

This is returned in a Result by either the `output` method of a `Command`, or the `wait_with_output` method of a `Child` process.

## Fields§

§`status: ExitStatus`

The status (exit code) of the process.

§`stdout: Vec<u8>`

The data that the process wrote to stdout.

§`stderr: Vec<u8>`

The data that the process wrote to stderr.

## Implementations§

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### impl Output

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#### pub fn exit_ok(self) -> Result<Self, ExitStatusError>

🔬This is a nightly-only experimental API. (`exit_status_error` #84908)

Returns an error if a nonzero exit status was received.

If the `Command` exited successfully, `self` is returned.

This is equivalent to calling `exit_ok` on `Output.status`.

Note that this will throw away the `Output::stderr` field in the error case. If the child process outputs useful informantion to stderr, you can:

- Use `cmd.stderr(Stdio::inherit())` to forward the stderr child process to the parent’s stderr, usually printing it to console where the user can see it. This is usually correct for command-line applications.
- Capture `stderr` using a custom error type. This is usually correct for libraries.

##### §Examples

    #![feature(exit_status_error)]
    use std::process::Command;
    assert!(Command::new("false").output().unwrap().exit_ok().is_err());

## Trait Implementations§

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### impl Clone for Output

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#### fn clone(&self) -> Output

Returns a duplicate of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl Debug for Output

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#### fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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### impl PartialEq for Output

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#### fn eq(&self, other: &Output) -> bool

Tests for `self` and `other` values to be equal, and is used by `==`.
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#### fn ne(&self, other: &Rhs) -> bool

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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### impl Eq for Output

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### impl StructuralPartialEq for Output

## Auto Trait Implementations§

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### impl Freeze for Output

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### impl RefUnwindSafe for Output

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### impl Send for Output

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### impl Sync for Output

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### impl Unpin for Output

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### impl UnwindSafe for Output

## Blanket Implementations§

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### impl<T> Any for T
where T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<T> CloneToUninit for T
where T: Clone,

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#### unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit` #126799)
Performs copy-assignment from `self` to `dest`. Read more
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T> ToOwned for T
where T: Clone,

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.