egrep没有得到结果

Question

我写了一个小脚本，它将egrep来自服务器日志的两个模式

pattern - 'Unable to resolve location classpath:db/migration|Processing PersistenceUnitInfo'

代码段

#/bin/sh
ssh  tomcat@x.x.x.x egrep -e 'Unable to resolve location classpath:db/migration|Processing PersistenceUnitInfo' /usr/local/dd/logs/ddservice.log

执行结果

bash: Processing: command not found
grep: to: No such file or directory
grep: resolve: No such file or directory
grep: location: No such file or directory
grep: classpath:db/migration: No such file or directory

事实上，属于上述模式的关键字很少。如何修改脚本以获取模式。

Answer 1

您必须使用搜索字符串中的\来转义空格。

尝试

ssh tomcat@x.x.x.x egrep -e 'Unable\ to\ resolve\ location\classpath\:db/migration|Processing\ PersistenceUnitInfo' /usr/local/dd/logs/ddservice.log

Answer 2

我在这里有几个假设：

1. 我没有在egrep和
之前看到管道
2. 可能＆＃34; /＆＃34;符号应该被转义。这只是第一眼看到我手上没有笔记本电脑。

这是可行的代码：

$ ssh username@somehost "egrep -e \"Unable to resolve location classpath:db/migration|Processing PersistenceUnitInfo\" /somepath/test.log"
Unable to resolve location classpath:db/migration
Processing PersistenceUnitInfo

然后：

$ cat 1.log 
Unable to resolve location classpath:db/migration
Processing PersistenceUnitInfo