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package cmds import ( "errors" "os" "strings" ) func export(args []string) error { if len(args) == 1 || len(args) >= 3 { return errors.New("usage: export {name=value}") } tmp := strings.Split(args[1], "=") if len(tmp) != 2 { return errors.New("usage: export {name=value}") } return os.Setenv(tmp[0], tmp[1]) }