Grep 不尊重 --exclude-dir

Question

/var由于在 处挂起，我在搜索时遇到了麻烦/var/run。我试图排除/var/run，但它没有产生预期的结果：

$ sudo grep -IR --exclude-dir="/var/run" '45.78.157.165' /var | egrep -v '(audit|access)'
/var/log/secure:Jun 21 14:08:34 cryptopp sshd[19729]: error: Received disconnect from 199.91.135.157: 3: com.jcraft.jsch.JSchException: reject HostKey: 45.78.157.165 [preauth]
/var/log/secure-20160626:Jun 21 14:08:34 cryptopp sshd[19729]: error: Received disconnect from 199.91.135.157: 3: com.jcraft.jsch.JSchException: reject HostKey: 45.78.157.165 [preauth]
/var/log/secure-20160626:Jun 21 14:08:34 cryptopp sshd[19729]: error: Received disconnect from 199.91.135.157: 3: com.jcraft.jsch.JSchException: reject HostKey: 45.78.157.165 [preauth]
grep: /var/run/saslauthd/mux: No such device or address
grep: /var/run/dbus/system_bus_socket: No such device or address
grep: /var/run/rpcbind.sock: No such device or address
grep: /var/run/udev/control: No such device or address

-exclude-dir=/var/run和都试过了-exclude-dir="/var/run"。两者产生相同的结果。

为什么我的 grep 失败了？

如何/var/run从递归 grep 中排除？

---

CentOS 7.2，带 Grep：

$ grep --version
grep (GNU grep) 2.20
Copyright (C) 2014 Free Software Foundation, Inc.

Answer 1

我认为这可能是因为您明确要求grep从 递归搜索/var，并且/var/run与 下的 SUBDIRECTORY 不匹配/var。

请参阅 grep 手册页，其中指出：

--exclude-dir=glob
    [..] skip any subdirectory whose base name matches glob.  [..]

使固定

因此，要修复您的命令，请更改排除模式，即：

sudo grep -IR --exclude-dir="run" '45.78.157.165' /var | egrep -v '(audit|access)'