VIM

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VIM

• The editor that can and will fulfill your every
  desire.

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Basic Navigational commands

• k up
• j down
• l right
• h left
• w move forward by word
• b move backward by word

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Basic Navigational Commands

• f page down
• b page up
• beginning of line
• end of line

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VIM Modes

• Command Mode
• Insertion Mode
• Sed Mode

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Command Mode

• Certain keys perform certain actions.
• Ie. hjkl are all used in command mode.
• To enter command mode simply press escape.

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Insertion Mode

• In Insert mode, anything you type is simply text
  in your file.
• To enter insertion mode
• i insert
• a append
• Among others

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Sed Mode

• In Command mode type to enter Sed Mode.
• In sed mode any SED command can be applied to
  your text.
• Ie. g/\t/s/\t/ /g will substitute all tabs
  with 4 spaces in your text file.

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Copy Paste

• To copy paste you yank the lines
• yxy will yank x number of lines
• To cut you delete the lines
• dxd will delete x number of lines and store
  them in the buffer
• To delete lines simply cut them.

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Copy and Paste

• To Paste use the P command
• p insert line after current position.
• P insert line before current position.
• Note you can cut/paste in sed mode as well as
  command mode.

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Replacing Text

• rreplace current character
• R enters insertion mode in Replace mode

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MOST IMPORTANT CMD

• The most important command for any newbie.
• U/u undo
• It might just save your life.or your code.

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Searching for text.

• /Pattern will search for pattern specified.
• /?Pattern will search for pattern specified
  backwards.
• n find next occurrence
• N find prev occurrence

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Open-Close-Save, etc.

• To Save a file
• Sed Mode
• w writes changes
• x writes and quits
• Cmd Mode
• ZZ writes and quits
• To Close a file
• q closes and quits program.

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Open-Close-Save, etc.

• To override any command
• Ie. To exit without saving, to force write on a
  read-only file, etc.
• Append ! To any command
• q! quiets w/o saving
• w! writes read-only

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Coding uses.

• Assuming uve run ctags on your program
• advances to next function
• advances to previous function
• !make compiles program
• !pgm-name runs program
• ALL within VIM.

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Tips Tricks

• r !my_cmd
• Runs my_cmd and inserts output in current
  session.
• g/./m0
• File line reversal (line 1 , line line1)
• g//m0 same as above
• 1,sMg
• Remoes dos \r from text file, ie. Converts to
  unix format

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Tips n Tricks

• set number
• Display line numbering, useful for sed use
• Set nonumber to disable
• set ts4
• Sets tabspace to any number of spaces desired.

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Tips n Tricks

• line-num will take u directly to that line.
• Ie. Compiler error line 157
• Vim file 157 or.
• 157 while in vi

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Customized startup

• Create a .exrc file in your HOME dir to start
  vim the way you like it.
• Setting tabspaces, behavior, colors scheme, etc.

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URLS of note.

• www.vim.org
• Scripts, themes, macros, and goodies as well as
  tutorials
• Source file.vim to load a script/macro.
• www.oreilly.com
• Some excellent e-books as well as hardcover books
  on sed and vim