Changes

* [http://linuxcommand.org/lc3_man_pages/tr1.html tr]<br>

* [http://man7.org/linux/man-pages/man1/wc.1.html wc]<br>

|colspan="1" style="padding-left:15px;" width="30%"|Brauer Instructional Videos:<ul><li>[https://www.youtube.com/watch?v=ocU34PcYn2U&list=PLU1b1f-2Oe90TuYfifnWulINjMv_Wr16N&index=4 Reading/Writing to Files<br>(echo, stdin, stdout, stderr, >, >>, 2>, cat, more, less, man, date, diff, diff -y, find, wc])<br><br></li></ul>