grep 结果异常？

guocanwen

[work@w-m2 ~/software/hbase/conf]$ grep -n  'ratio' *.xml
hbase-default.xml:2:<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
hbase-default.xml:24:<configuration>
hbase-default.xml:125:    operations such as fetching of the root region from root region
hbase-default.xml:361:    all updates across the duration of the compaction.
hbase-default.xml:546:    of operation. For a fully-distributed setup, this should be set to a full
hbase-default.xml:572:  ZooKeeper's configuration. Hence, if you want to add an option from zoo.cfg,
hbase-default.xml:573:  e.g.  "initLimit=10" you would append the following to your configuration:
hbase-default.xml:658:</configuration>
hbase-site.xml:2:<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
hbase-site.xml:24:<configuration>
hbase-site.xml:77:</configuration>
[work@w-m2 ~/software/hbase/conf]$

为什么会出现这个匹配结果？

kk5234

因为它们都含有ratio字符

jason680

回复 1# guocanwen

Did you like to match word(-w) only

$ echo 'configration
test ratio
test configration
test 123' | grep -n ratio
1:configration
2:test ratio
3:test configration

$ echo 'configration
test ratio
test configration
test 123' | grep -n -w ratio
2:test ratio

   

xiaobai2621

结果是正常的。你这个是搜索当前目录，所有的.xml文件中包含关键字ratio的行。

guocanwen

回复 2# kk5234


    看错了，没注意configuration包含这这个子串

xiaobai2621

建议你在使用grep的时候，加个参数
alias grep='grep --color=auto'