"Linux-shell" shell script basic grammar Exercises

has been learning, but also has been forgotten, today with the help of this blog post, to record their own learning process some of the most basic things!

1. For

#!/bin/bashfor i in {1..10}do echo $idone

Scan the active IP in the target network segment

#!/bin/bashfor IP in 192.168.1. {1..255};d oping $ip-C 2 &>/dev/null, if [$?-eq 0];thenecho $ip is alivefidone

2. If

#!/bin/bash# determine if the current user is rootif [$UID-eq 0];thenecho You is root user.elseecho you are nothing.fi

This article is from the "Xuan Bi Yun" blog, please be sure to keep this source http://rebybyx.blog.51cto.com/7262320/1676434

"Linux-shell" shell script basic grammar Exercises