Tutorial 5 Question 7

[Benji]

Hi,

I can't figure out how to do this.
I tried lots of things...

grep "*.x.*" | wc /usr/share/dict/words
--> 479829 479829 4953699 /usr/share/dict/words

grep "*x*" | wc /usr/share/dict/words
--> 479829 479829 4953699 /usr/share/dict/words

grep x | wc /usr/share/dict/words
--> 479829 /usr/share/dict/words

None of these numbers work...
Can anyone help me? Tell me where my mistake is?
Thanks a lot.

Benji

[drgrussell]

grep x | wc /usr/share/dict/words

This grep has no input so does not do anything and instead wc is the only thing which works.
The grep should have the search file and not wc. Info moves from left to right. So

grep x /usr/share/dict/words | wc -l