! -iname "*.dll" \
! -iname "*.deb" \
! -iname "*.dmg" \
+ ! -iname "*.doc" \
+ ! -iname "*.docx" \
! -iname "*.exe" \
! -iname "entries" \
! -iname "*.git" \
+ ! -iname "*.gif" \
! -iname "*.gz" \
! -iname "*.iar" \
! -iname "*.jar" \
+ ! -iname "*.jpg" \
! -iname "*.lib" \
! -iname "*.ncb" \
! -iname "*.oar" \
! -iname "*.svn-base" \
! -iname "*.tar" \
! -iname "*.tmp" \
+ ! -iname "*.xls" \
+ ! -iname "*.xlsx" \
! -iname "*.zip" \) \
-exec echo "\"{}\"" ';' | xargs grep -li -- "$seek" | grep -v "^\.[^\/]\|\/\."