awk {print $2}的讲解

楼主的提问：

 

/oracle/ID1/saparch"|awk '{print $2}'

what does print $2 means?

The print $2 part does this.
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回答：

Say we have a text file containing the following.

bob 23 45 hello
jim 12 88 bye


If we cat the file and do the awk print $2 thing, we get the following out.


23
12

the print $2 part says to the command, show me the 2nd field.

so, if we said：

awk '{print $1, $4}' 

　　

we would get the following.


bob hello
jim bye

Hope that helps

U4ia-F8