linux下批量删除utf8 bom

低版本的gcc编译包含bom的文件会报错

xxx.cpp:1: error: stray ‘\357’ in program
xxx.cpp:1: error: stray ‘\273’ in program
xxx.cpp:1: error: stray ‘\277’ in program

grep -rIlo $'^\xEF\xBB\xBF' . | xargs sed --in-place -e 's/\xef\xbb\xbf//'

find . -name "*.h" | xargs sed --in-place -e '${G}'