下面是案例： 1、查找当前网段内IP用户，重定向到ip.txt文件中 代码：
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#/bin/bash a=1 while : do a=$(($a+1)) if test $a -gt 255 then break else echo $(ping -c 1 192.168.0.$a | grep "ttl" | awk '{print $4}'| sed 's/://g') ip=$(ping -c 1 192.168.0.$a | grep "ttl" | awk '{print $4}'| sed 's/://g') echo $ip >> ip.txt fi done |
结果: 文档。 2、case语句练习 代码…
Read more下面是案例： 1、ping测试IP地址 代码：
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#!/bin/bash for i in 1 2 3 4 do echo "the number of $i computer is " ping -c 1 192.168.0.$i done |
结果：
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the number of 1 computer is PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data. --- 192.168.0.1 ping statistics --- 1 packets transmitted, 0 received, 100% packet loss, time 10000ms the number of 2 computer is PING 192.168.0.2 (192.168.0.2) 56(84) bytes of data. --- 192.168.0.2 ping statistics --- 1 packets transmitted, 0 received, 100% packet loss, time 10000ms the number of 3 computer is PING 192.168.0.3 (192.168.0.3) 56(84) bytes of data. --- 192.168.0.3 ping statistics --- 1 packets transmitted, 0 received, 100% packet loss, time 10000ms the number of 4 computer is PING 192.168.0.4 (192.168.0.4) 56(84) bytes of data. --- 192.168.0.4 ping statistics --- 1 packets transmitted, 0 received, 100% packet loss, time 10000ms |
2、打印…
Read moreShell是系统的用户界面，提供了用户与内核进行交互操作的一种接口。它接收用户输入的命令并把它送入内核去执行。 下面是案例： 1、比较两个数大小 代码： [crayon-6744a8f55a93181…
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