Question

linux中如果echo结果有多行，如何取某一行

Answer 1

echo "line1\nline2" | sed -n "2p"

echo "line1\nline2" 就是随便举例

此题用awk是杀鸡用牛刀。
"with awk and sed, you can do anything you want in linux", this is what I heard from my supervisor...