Command-Line
讓 netstat 不顯示外部地址的埠號
我想讓 netstat 不在外國地址上顯示埠號,這樣我就可以對其進行一些統計。這是針對 FreeBSD 系統的。
以下是輸出範例。
<root>:/# netstat -an | grep .80 |head tcp4 0 0 61.129.65.176.80 123.120.207.172.51972 ESTABLISHED tcp4 491 0 61.129.65.176.80 171.250.180.211.51000 ESTABLISHED tcp4 286 0 61.129.65.176.80 123.120.207.17210399 ESTABLISHED tcp4 299 0 61.129.65.176.80 211.8.128.46.35458 ESTABLISHED tcp4 0 0 61.129.65.176.80 123.139.147.112.62778 ESTABLISHED tcp4 361 0 61.129.65.176.80 239.187.139.47.17607 ESTABLISHED tcp4 509 0 61.129.65.176.80 74.74.87.36.7822 ESTABLISHED tcp4 324 0 61.129.65.176.80 75.30.126.198.60721 ESTABLISHED tcp4 508 0 61.129.65.176.80 149.78.116.66.12120 ESTABLISHED tcp4 321 0 61.129.65.176.80 48.150.75.171.2617 ESTABLISHED <root>:/#
sed
在管道的末尾添加此命令。它會進行貪婪搜尋,直到最後.
並刪除它以及它後面的所有數字。... | sed -e 's/^\(.*\)\.[0-9]*/\1/'
它產生:
tcp4 0 0 61.129.65.176.80 123.120.207.172 ESTABLISHED tcp4 491 0 61.129.65.176.80 171.250.180.211 ESTABLISHED tcp4 286 0 61.129.65.176.80 123.120.207.172 ESTABLISHED tcp4 299 0 61.129.65.176.80 211.8.128.46 ESTABLISHED tcp4 0 0 61.129.65.176.80 123.139.147.112 ESTABLISHED tcp4 361 0 61.129.65.176.80 239.187.139.47 ESTABLISHED tcp4 509 0 61.129.65.176.80 74.74.87.36 ESTABLISHED tcp4 324 0 61.129.65.176.80 75.30.126.198 ESTABLISHED tcp4 508 0 61.129.65.176.80 149.78.116.66 ESTABLISHED tcp4 321 0 61.129.65.176.80 48.150.75.171 ESTABLISHED