bash - Grep 该字符串的第一行并将其保存在变量中以 wget 吗？

Question

例如，我从 url 中 grep 这些行

wget -qO- http://superman.com/installer/ | grep "something" 

    href="Superman-Linux-20.0.1222.x64.sh"
    href="Superman-Linux-10.0.1222.x64.sh/*fingerprint*/"
    href="Superman-Linux-10.0.1222.x64.sh/*view*/"

我只想 grep

Superman-Linux-20.0.1222.x64.sh

那么我需要得到它

wget http://superman.com/installer/Superman-Linux-20.0.1222.x64.sh

Answer 1

而不是像这样的 grep: egrep -o "Superman-Linux.*\.sh"

在一行中执行以下操作:

wget http://superman.com/installer/$(wget -qO- http://superman.com/installer/ | egrep -o "Superman-Linux.*\.sh")