请问一个合并相同字段的shell命令

eddie_we

通过查看log日志查出ip地址
cat test.log |grep sshd|grep failure|grep -v Failed|awk '{print $11}' |cut -c 7-21|grep -v 219.142.174.152|grep -v 210.51.7 > test.txt

然后有很多重复的，我想要整合相同的ip该用什么命令阿？半天也没想到。。。

cat test.txt

202.115.142.158
202.115.142.158
202.115.142.158
219.142.174.151
219.142.174.151
219.142.174.151

yongjian

1. sort and then uniq -c

复制代码

w/o sort also work, but just nicer if you sort the output first.

eddie_we

多谢了，已经可以了

#! /bin/bash
m=`date +%b`;
d=`date +%d`;
cat /var/log/messages |grep $m |grep $d > test.txt;
cat test.txt |grep sshd|grep failure|grep -v Failed|awk '{print $13}' |cut -c 7-21|grep -v 219.142.174.152|grep -v 210.51.7|sort|uniq|grep -v -|grep -v [a-z]>iptables.txt;
for i in  `sort -u iptables.txt`;
do
/sbin/iptables -I INPUT -s $i -p tcp --dport 22 -j DROP;
done

echo  iptables update ok!