2 cases of editing files under Linux

1. <feff> in Linux vim
<feff> is called the BOM (Byte Order Mark) invisible character, is the Unicode used to identify the internal encoding arrangement, in the UTF-16, UTF-32 encoding It is required, and in the utf-8> is optional

Delete <feff> under Linux: Grep-i-r-l $ ' \xef\xbb\xbf ' File|xargs sed-i ' s/\xef\xbb\xbf//'

2. ^m in Linux vim
Use VI under Linux to see some text files created under Windows, and sometimes find some "^m" at the end of the line
Remove ^m

Dos2unix filesed-i "S=^m==g" Filevim Open with:%s/^m//g

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2 cases of editing files under Linux