Question

我有一个配置了许多虚拟主机的Apache服务器，并且希望能够像这样使用grep过滤它们。

# httpd -S | grep "myStr"

..但是，这种方法不起作用 - 我仍然看到我列出的所有虚拟主机。我有什么想法可以实际做到这一点吗？

以下是httpd -S

输出的示例

[root@224136 config]# httpd -S
VirtualHost configuration:
184.22.xxx.33:80       is a NameVirtualHost
         default server default (/etc/httpd/conf/kloxo/default.conf:4)
         port 80 namevhost default (/etc/httpd/conf/kloxo/default.conf:4)
         port 80 namevhost webmail (/etc/httpd/conf/kloxo/webmail.conf:6)
         port 80 namevhost xxxxxx.com (/home/httpd/xxxxxx.com/conf/kloxo.xxxxxxx.com:4)
         port 80 namevhost twptest.xxxxxx.com (/home/httpd/twptest.xxxxxx.com/conf/kloxo.twptest.xxxxxx.com:4)
         port 80 namevhost yyyyyyy.com (/home/httpd/yyyyyy.com/conf/kloxo.yyyyyyy.com:4)
         port 80 namevhost zzzzzzzz.com (/home/httpd/zzzzzzz.com/conf/kloxo.zzzzzzzz.com:4)
         port 80 namevhost expenses.zzzzzzzz.com (/home/httpd/expenses.zzzzzzz.com/conf/kloxo.expenses.zzzzzzz.com:4)
         port 80 namevhost aaaaaaaa.cz (/home/httpd/aaaaaaaaaaaa.cz/conf/kloxo.aaaaaaaaaaa.cz:4)
         port 80 namevhost aaaaaaaaaaa.cz (/home/httpd/aaaaaaaaaaaaa.cz/conf/kloxo.aaaaaaaaaa.cz:142)

Answer 1

因为你说“我仍然看到我列出的所有虚拟主机”我怀疑你需要将STDERR重定向到STDOUT，如下所示（假设是bash）out.py只是一个pythonscript，它将一些输出写入STDERR使用sys.stderr.write()

$ ./out.py | grep zzzzzzzz

VirtualHost configuration:
184.22.xxx.33:80       is a NameVirtualHost
         default server default (/etc/httpd/conf/kloxo/default.conf:4)
         port 80 namevhost default (/etc/httpd/conf/kloxo/default.conf:4)
         port 80 namevhost webmail (/etc/httpd/conf/kloxo/webmail.conf:6)
         port 80 namevhost xxxxxx.com (/home/httpd/xxxxxx.com/conf/kloxo.xxxxxxx.com:4)
         port 80 namevhost twptest.xxxxxx.com (/home/httpd/twptest.xxxxxx.com/conf/kloxo.twptest.xxxxxx.com:4)
         port 80 namevhost yyyyyyy.com (/home/httpd/yyyyyy.com/conf/kloxo.yyyyyyy.com:4)
         port 80 namevhost zzzzzzzz.com (/home/httpd/zzzzzzz.com/conf/kloxo.zzzzzzzz.com:4)
         port 80 namevhost expenses.zzzzzzzz.com (/home/httpd/expenses.zzzzzzz.com/conf/kloxo.expenses.zzzzzzz.com:4)
         port 80 namevhost aaaaaaaa.cz (/home/httpd/aaaaaaaaaaaa.cz/conf/kloxo.aaaaaaaaaaa.cz:4)
         port 80 namevhost aaaaaaaaaaa.cz (/home/httpd/aaaaaaaaaaaaa.cz/conf/kloxo.aaaaaaaaaa.cz:142)

现在将STDERR发送到STDOUT：

$ ./out.py 2>&1 | grep zzzzzzzz
         port 80 namevhost zzzzzzzz.com (/home/httpd/zzzzzzz.com/conf/kloxo.zzzzzzzz.com:4)
         port 80 namevhost expenses.zzzzzzzz.com (/home/httpd/expenses.zzzzzzz.com/conf/kloxo.expenses.zzzzzzz.com:4)

Answer 2

我只是有同样的需求，并使用了以下内容：

 /usr/sbin/apache2ctl -S 2>&1 | awk '/namevhost/  {print $4;} '

在获取awk之前将SDTERR（2）重定向到STDOUT（＆amp; 1）

如何使用grep过滤Apache虚拟主机列表

2 个答案: