awk '$7 !~ /(\.png| \.gif)/' abc.txt 这样有什么不对吗？太怪了！！！[已解决]

RAULNAN

请帮我看一下，这两个命令有什么不同吗？？？？

awk '$7 !~ /(\.png| \.gif)/' abc.txt

awk '$7 !~ /(\.gif|\.png)/' abc.txt
这两个命令的运行结果为什么会不一样？？？？
以下是运行结果。我实在是找不到原因啊。

[root@station11 logs]# cat abc.txt
192.168.0.104 - - [30/Nov/2004:15:27:12 +0800] "GET / HTTP/1.1" 200 9312 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.0.104 - - [30/Nov/2004:15:25:08 +0800] "GET /tomcat-power.gif HTTP/1.1" 200 2324 "http://192.168.0.104/" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.113.250 - - [30/Nov/2004:14:53:43 +0800] "GET /usage/usage_200411.html HTTP/1.1" 200 47412 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.7) Gecko/20040616"
192.168.0.104 - - [30/Nov/2004:14:51:19 +0800] "GET /usage/hourly_usage_200411.png HTTP/1.1" 200 1665 "http://192.168.0.104:8080/usage/usage_200411.html" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.0.104 - - [30/Nov/2004:15:27:12 +0800] "GET / HTTP/1.1" 200 9312 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.0.104 - - [30/Nov/2004:15:25:08 +0800] "GET /tomcat-power.gif HTTP/1.1" 200 2324 "http://192.168.0.104/" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.113.250 - - [30/Nov/2004:14:53:43 +0800] "GET /usage/usage_200411.html HTTP/1.1" 200 47412 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.7) Gecko/20040616"
192.168.0.104 - - [30/Nov/2004:14:51:19 +0800] "GET /usage/hourly_usage_200411.png HTTP/1.1" 200 1665 "http://192.168.0.104:8080/usage/usage_200411.html" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
[root@station11 logs]#






[root@station11 logs]# awk '$7 !~ /(\.png| \.gif)/' abc.txt
192.168.0.104 - - [30/Nov/2004:15:27:12 +0800] "GET / HTTP/1.1" 200 9312 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.0.104 - - [30/Nov/2004:15:25:08 +0800] "GET /tomcat-power.gif HTTP/1.1" 200 2324 "http://192.168.0.104/" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.113.250 - - [30/Nov/2004:14:53:43 +0800] "GET /usage/usage_200411.html HTTP/1.1" 200 47412 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.7) Gecko/20040616"
192.168.0.104 - - [30/Nov/2004:15:27:12 +0800] "GET / HTTP/1.1" 200 9312 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.0.104 - - [30/Nov/2004:15:25:08 +0800] "GET /tomcat-power.gif HTTP/1.1" 200 2324 "http://192.168.0.104/" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.113.250 - - [30/Nov/2004:14:53:43 +0800] "GET /usage/usage_200411.html HTTP/1.1" 200 47412 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.7) Gecko/20040616"




[root@station11 logs]# awk '$7 !~ /(\.gif|\.png)/' abc.txt
192.168.0.104 - - [30/Nov/2004:15:27:12 +0800] "GET / HTTP/1.1" 200 9312 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.113.250 - - [30/Nov/2004:14:53:43 +0800] "GET /usage/usage_200411.html HTTP/1.1" 200 47412 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.7) Gecko/20040616"
192.168.0.104 - - [30/Nov/2004:15:27:12 +0800] "GET / HTTP/1.1" 200 9312 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4) Gecko/20030922"
192.168.113.250 - - [30/Nov/2004:14:53:43 +0800] "GET /usage/usage_200411.html HTTP/1.1" 200 47412 "-" "Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.7) Gecko/20040616"
[root@station11 logs]#

RAULNAN

没有人理我吗？

yongjian

I ran it. It is the same. But I found on your first one:
awk '$7 !~ /(\.png| \.gif)/' abc.txt
You have a space there b/w "|" and "\.gif"

RAULNAN

非常感谢！按你的提示，这个问题解决了。