| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/fsnotify/fsnotify | Package fsnotify provides a cross-platform interface for file system notifications. |
| github.com/purpleidea/mgmt/util | Package util contains a collection of miscellaneous utility functions. |
| math | Package math provides basic constants and mathematical functions. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| syscall | Package syscall contains an interface to the low-level operating system primitives. |