Nothing done when run bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.1.jar grep input output 'dfs[a-z.]+'

[ejgutierrez74]

I run bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.1.jar grep input output 'dfs[a-z.]+' to test hadoop works well. the order is running and accepted but get stuck and nothing happens.

Perhpas this is the problem:

Thanks in advance...