Lab46 Wiki

cat needs input. The pipe (|) is magic.

cat file|more cat file|less

|less is more, and Iceland is green.

output|input

grep -for text files

grep ' ' and grep '[ ]'

(<,>) output redirection

“ half quotes -variable expansion ' Full quotes -literal ` back tick -command expansion

$ variable access

Wildcards * 0 or more ? 1 of anything [] 1 of enclosed -character class [^ ] not 1 of enclosed -inverted character class

ls ??|wc -c Returns number of two character files in folder

alias name command

meme=“Long cat” alias cm=“echo $meme” echo meme Long cat

More on Wild Cards

ls [aeiou]?|wc -c returns two character file which begins with aeiou

ls [^aeiou]*[aeiou]*[aeiou]|wc -w returns number of files which contain aeiou, but the first and last characters are not aeiou.

starts with anything *.conf ends in .config starts with .config .config* end with anything

VI text editor introduction

h-left j-down k-up l-left

m- move right by word M- move right by space b- move left by word B- move left by space

u- undo ctrl+r- redo

i- enter text mode esc- enter command mode

Downloaded Ubuntu onto a flash drive last week in the hopes that I could boot from such and play around with it. I use to run Ubuntu -The Lucid Lynx, then the Hardy Heron- and decided to try the Trusty Tahr. Booting from the flash became a pain, so I downloaded VirtualBox so I can run numerous OS's inside my current OS. It's fantastic. I can now run Ubuntu and Debian inside windows. I need to reinstall Debian, as it's not functioning right now, but the future looks bright.

Remodeled my room so I have more space to play with my computers. I was able to pull out my Raspberry Pi and boot Raspian -the Debian OS, on her. I am now in the process of editing bash as I enjoy it and otherwise exploring the system as the root user. To note: Raspbian is substantially more GUI-ed than the Debian we utilize in The Best Class We've Ever Taken.

Yippi!!!

I began Vim Adventures. I cannot orient myself properly with hjkl directionally, so I'm using the directional keys. It has otherwise been enjoyably informative.

I have also explored Raspbian and made extensive use of VI and the file command to view files. It seems as though there are many unnecessary files I'll need to expunge, once I'm sure that they're not compulsory.

Experimenting with booting Ubuntu from a flash drive to view files on locked user accounts on a PC. Fun stuff.

The root user on Raspbian is not password protected, so I am in the process of figuring that out. I've also been e