<U+FEFF> character showing up in files. How to remove them?
You can easily remove them using vim, here are the steps:
1) In your terminal, open the file using vim:
vim file_name
2) Remove all BOM characters:
:set nobomb
3) Save the file:
:wq
备注:
所谓 BOM,全称是Byte Order Mark,它是一个Unicode字符,通常出现在文本的开头,用来标识字节序 (Big/Little Endian),除此以外还可以标识编码(UTF-8/16/32),如果出现在文本中间,则解释为zero width no-break space
yum install dos2unix -y