转:用vim去除utf-8 BOM

https://blog.csdn.net/jichl/article/details/12500323

file *
1:   UTF-8 Unicode text
2:   UTF-8 Unicode (with BOM) text

bom:UTF-8签名（UTF-8 signature）也叫做BOM（Byte Order Mark）

用vim去除utf-8 BOM
set nobomb