perl -p -e’s / ^ /“/’myfile应该这样做！
$cat myfile 0 1 2 3 4 5 6 7 8 9 10 $perl -p -e 's/^/"/' myfile "0 "1 "2 "3 "4 "5 "6 "7 "8 "9 "10
$cat myfile 0 1 2 3 4 5 6 7 8 9 10 $perl -p -e 's/^/"/' myfile "0 "1 "2 "3 "4 "5 "6 "7 "8 "9 "10
