# Module std::env::consts

1.0.0 · source ·
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Constants associated with the current target

## Constants

- ARCH
  A string describing the architecture of the CPU that is currently in use.
- DLL_EXTENSION
  Specifies the file extension used for shared libraries on this platform that goes after the dot. Example value is `so`.
- DLL_PREFIX
  Specifies the filename prefix used for shared libraries on this platform. Example value is `lib`.
- DLL_SUFFIX
  Specifies the filename suffix used for shared libraries on this platform. Example value is `.so`.
- EXE_EXTENSION
  Specifies the file extension, if any, used for executable binaries on this platform. Example value is `exe`.
- EXE_SUFFIX
  Specifies the filename suffix used for executable binaries on this platform. Example value is `.exe`.
- FAMILY
  The family of the operating system. Example value is `unix`.
- OS
  A string describing the specific operating system in use. Example value is `linux`.