I have learned several new commands. I subscribed to the email. I just hope I'm doing this stuff right and submitting it properly. I'm confused on how I'm suppose to submit the stuff that I'm doing.

It was harder than I thought it was going to but I finally got everything pointed in the right direction. I'm starting to get a little more comfortable with it but by no means am I a master at it. It's all so new and different to me but at the same time interesting.

Regular Expressions (Regex)

. match any single character [] match any one of enclosed [^ ] do not match any one of enclosed \< match start of word \> match end of word

$ match end of line ___ Extended Regex

() grouping \( \) pattern group

dd -Grabs data and displays it bvi/ hexedit

echo “Hello” | od -x

0000000 6548 6c6c 0a6f 0000006 0x BE EF EF BE -little endian BE EF -Big endian

gif sound

sax gandalf gifsound epic sax guy

bgrep

cat /etc/motd | grep 'a' cat bfile | bgrep '12' cat bfile | bgrep '12..34'

tar -xvh sleep.tar.bz2 bvi session-201211020309.raw

ssh tunnel ssh user@lab46.corning-cc.edu

ssh -g -L 8080:WWW:80 user@lab46.corning-cc.edu

http://lab46.corning-cc.edu/opus/spring2015/user/start -old way

http://localhost:8080/opus/spring2015/user/start -new way

Process -program in action Process ID: PID ps -process status ps aux | less ps aux | grep sarno | grep fire

ls -a will show all files including hidden ones

fg # bg # kill -l kill -1 PID kill -SIGHUP PID