[](http://godoc.org/github.com/pkg/xattr) [](https://goreportcard.com/report/github.com/pkg/xattr) [](https://github.com/pkg/xattr/actions?query=workflow%3Abuild) [](https://codecov.io/gh/pkg/xattr) xattr ===== Extended attribute support for Go (linux + darwin + freebsd + netbsd + solaris). "Extended attributes are name:value pairs associated permanently with files and directories, similar to the environment strings associated with a process. An attribute may be defined or undefined. If it is defined, its value may be empty or non-empty." [See more...](https://en.wikipedia.org/wiki/Extended_file_attributes) `SetWithFlags` allows to additionally pass system flags to be forwarded to the underlying calls. FreeBSD and NetBSD do not support this and the parameter will be ignored. The `L` variants of all functions (`LGet/LSet/...`) are identical to `Get/Set/...` except that they do not reference a symlink that appears at the end of a path. See [GoDoc](http://godoc.org/github.com/pkg/xattr) for details. ### Example ```go const path = "/tmp/myfile" const prefix = "user." if err := xattr.Set(path, prefix+"test", []byte("test-attr-value")); err != nil { log.Fatal(err) } var list []string if list, err = xattr.List(path); err != nil { log.Fatal(err) } var data []byte if data, err = xattr.Get(path, prefix+"test"); err != nil { log.Fatal(err) } if err = xattr.Remove(path, prefix+"test"); err != nil { log.Fatal(err) } // One can also specify the flags parameter to be passed to the OS. if err := xattr.SetWithFlags(path, prefix+"test", []byte("test-attr-value"), xattr.XATTR_CREATE); err != nil { log.Fatal(err) } ```