AnsweredAssumed Answered

What does dfs[a-z]+ do?

Question asked by nikhil_krishnan on Aug 2, 2012
Latest reply on Aug 2, 2012 by nabeel
I am new to ubuntu. Recently I installed Hadoop and am on the process of learning it. I am making use of the page: I came across the line
bin/hadoop jar hadoop-examples-*.jar grep input output 'dfs[a-z.]+'      
Can someone explain what grep and dfs[a-z]+ do in the above line?