*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

*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

*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 are a way to modify searches.

• -*-zero, any, or all characters
• -?-any single character
• -[]-any character specified within the brackets

regular expressions are similar to wildcards, but in some cases more specific, and paired with different commands, like grep.

• -.-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.