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Liam Wall's fall 2013 Opus
EXCELSIBOAR
Introduction
This is the chronicle of my epic journey into the realms of Unix and Linux, strange and wonderful lands that frankly terrify me. I'm mostly writing this so my family will have something to console them when I disappear into the matrix. And this isn't even my final form!!!!
- I wrote this when I was much more young and naive. I had no clue exactly how powerful linux truly is and how small I am in comparison. I feel lost. Here is a record of my personality, for progenity.
This is what I look like:
- I like videogames just like every other person who is taking this class
- I also like lesser hobbies like reading, drawing, listening to music and
- ==PIXEL ART==
- my alter ego is William Shatner
UNIX/Linux Fundamentals Journal
WEEK 1
*learned how to use some basic commands such as:
- ls- “Sight”, or what's in this directory
- who- who is on the server at the time
- w- like who, but slightly less specific
- cd src- “cd source” takes you back to the base folder
- cd- snaps back to home
- cd..- up 1 directory
- man (any command)- shows how a command works manually, specific uses etc.
- whereis (“”)- shows location of prompt
- whoami- built in amnesia support
- pom- phase of the moon
- cal- calendar
WEEK 2
*learned meaning of some of the formats in the terminal
- blue font- directory files
- cyan font- symbolic link
- red font- broken symbolic link OR compressed file
- magenta font- media file (yay!)
- green font- executable font
- yellow font- special (device) file (rare)
- white font- fg
- red font- bg- set UID
*also learned meanbing of the 10 character indicators.
- First character indicates file type
- second group (three characters) indicates read, write, execute authorizations for the user
- third group (three characters) indicates read, write, execute authorizations for users within your group
- fourth (three characters) indicates read, write, execute authorizations for the global community, an alien race comprised largely of ignorants and kittens
WEEK 3
*9/11/13
- Start learning best text editor EVARRRR! vi!
- stands for Visual Editor
- every key can be command as well as something to add text with (or bimodal)
- basic commands:
- type vi to enter
- vi filename- opens a specific file
- ESC- returns to command (PANIC! button)
- I- insert mode (no backspace in this land)
- Navigation
- so, no arrow keys originally in vi, just H,J,K,L! (j & k are up and down, think Nethack)
- w- moves cursor forward 1 word, can add # prefixes
- b- vice versa, # prefixes
- w and b are for each word and punctuation, spaces, word level
- W and B are only for higher level words
- ^-jumps to the beginning of the line
- $- snaps the the end of the line
- G- snaps to a given line, uses prefixes
- Modification
- x- deletes 1 character in front, can have prefix
- X-same, but backspace
- u-conditional undo, IF YOU STAY ON THE SAME LINE
- dw- delete word to the right, prefixes
- dW- delete word to left, prefixes
- d$- delete line to right
- d^- delete line to the left
- dd- delete whole line
- .- repeat last command
- cw- change word (goes in insert, word deleted) to the right
- cW- “ ” to the right
- cb
- c$
- c^
- cc
WILDCARDS
Wildcards are a way to modify searches.
- -*-zero, any, or all characters
- -?-any single character
- -[]-any character specified within the brackets
REGULAR EXPRESSIONS
regular expressions are similar to wildcards, but in some cases more specific, and paired with different commands, like grep.
MY SPOON IS TOO BIG
- -.-any single character
- -*-zero or more of the previous characters
- -[]-matches anything within the square brackets
- -[^ ]-DOES NOT match any of the characters specified within the brackets
- -|-can mean or in some instances
Also, ^ specifies the beginning of a regular expression and $ specifies the end in most cases.
I am a banana, my spoon is too big.
