find命令之跳过指定目录查询
有时候在使用find查询时想跳过其中的目录（子目录），命令上基本是用到find的-prune和-path参数，但其中有几个注意点
- -path路径不能加入结尾的/
- -path路径和find路径保持一致
参考如下几行命令
下面这条命令想在当前目录下的test/config/目录但跳过mappings子目录查找xml结尾的文件，因为-path的路径参数加了/结尾，所以实际查到的结果并没有跳过mappings子目录（返回的第二行）
[yangwz@localhost ~]$ find test/config/ -path "test/config/mappings/" -a -prune -o -name "*.xml" -print
test/config/spring-context-activiti.xml
test/config/mappings/catalog/theme/ThemeCataDao.xml
test/config/spring-context.xml
test/config/spring-context-jedis.xml
test/config/mybatis-config.xml
test/config/spring-context-dubbo.xml
下面这条命令去掉了-path路径最后面的/，所以查询结果达到预期
[yangwz@localhost ~]$ find test/config/ -path "test/config/mappings" -a -prune -o -name "*.xml" -print
test/config/spring-context-activiti.xml
test/config/spring-context.xml
test/config/spring-context-jedis.xml
test/config/mybatis-config.xml
test/config/spring-context-dubbo.xml
下面两条命令演示path路径和find不一致的区别
-path路径和find路径不一致时，查询结果也是没有达到预期，即find是在当前路径开始查，而-path写的是绝对路径
[yangwz@localhost ~]$ find test/config/ -path "/home/yangwz/test/config/mappings" -a -prune -o -name "*.xml" -print
test/config/spring-context-activiti.xml
test/config/mappings/catalog/theme/ThemeCataDao.xml
test/config/spring-context.xml
test/config/spring-context-jedis.xml
test/config/mybatis-config.xml
test/config/spring-context-dubbo.xml
而当两者路径一致时，查询结果达到预期
[yangwz@localhost ~]$ find /home/yangwz/test/config/ -path "/home/yangwz/test/config/mappings" -a -prune -o -name "*.xml" -print
/home/yangwz/test/config/spring-context-activiti.xml
/home/yangwz/test/config/spring-context.xml
/home/yangwz/test/config/spring-context-jedis.xml
/home/yangwz/test/config/mybatis-config.xml
/home/yangwz/test/config/spring-context-dubbo.xml