Linux shell脚本编程(二) 练习:求100以内所有偶数之和; 使用至少三种方法实现; 示例1: #!/bin/bash # declare -i sum=0 #声明一个变量求和,初始值为0 for i in $(seq 0 2 100); do sum=$(($sum+$i)) done echo "Even sum: $sum." 示例2: #!/bin/bash # declare -i sum=0 for i in {1..100}; do if [ $[$i%2] -…
转自:http://www.cnblogs.com/blacksword/archive/2012/03/19/2406098.html WinPcap可能对大多数人都很陌生,我在这里就先简单介绍一下它是什么吧~~这里我们先看一下来自维基百科中对于pcap的解释吧! In the field of computernetwork administration, pcap (packet capture) consists of an application programming interfa…
