vi tips and tricks
I have been using vim for over a decade and still use it on a daily basis to solve problems that would otherwise be a pain to do manually or by using more mainstream tools like Excel.
vi, aka vim, tutorial of tips, tricks and useful commands:
Where grep came from (RE being Regular Expression): :g/RE/p Delete lines 10 to 20 inclusive: :10,20d or with marks a and b: :'a,'bd Delete lines that contain pattern: :g/pattern/d Delete all empty lines: :g/^$/d Delete lines in range that contain pattern: :20,30/pattern/d or with marks a and b: :'a,'b/pattern/d Substitute all lines for first occurance of pattern: :%s/pattern/new/ :1,$s/pattern/new/ Substitute all lines for pattern globally (more than once on the line): :%s/pattern/new/g :1,$s/pattern/new/g Find all lines containing pattern and then append -new to the end of each line: :%s/\(.*pattern.*\)/\1-new/g Substitute range: :20,30s/pattern/new/g with marks a and b: :'a,'bs/pattern/new/g Swap two patterns on a line: :s/\(pattern1\)\(pattern2\)/\2\1/ Capitalize the first lowercase character on a line: :s/\([a-z]\)/\u\1/ more concisely: :s/[a-z]/\u&/ Capitalize all lowercase characters on a line: :s/\([a-z]\)/\u\1/g more concisely: :s/[a-z]/\u&/g Capitalize all characters on a line: :s/\(.*\)/\U\1\E/ Capitalize the first character of all words on a line: :s/\<[a-z]/\u&/g Uncapitalize the first character of all words on a line: :s/\<[A-Z]/\l&/g Change case of character under cursor: ~ Change case of all characters on line: g~~ Change case of remaining word from cursor: g~w Increment the number under the cursor: <Ctrl-A> Decrement the number under the cursor: <Ctrl-X> redraw: <Ctrl-L> Turn on line numbering: :set nu Turn it off: :set nonu Number lines (filter the file through a unix command and replace with output): :%!cat -n Sort lines: :%!sort Sort on column #69: :sort /.*\%69v/ Sort and uniq: :%!sort -u Read output of command into buffer: :r !ls -l Refresh file from version on disk: :e! Open a new window: <Ctrl-W>n Open a new window with the same file (split): <Ctrl-W>s Split window vertically: <Ctrl-W>v Close current window: <Ctrl-W>c :q Make current window the only window: <Ctrl-W>o Cycle to next window: <Ctrl-W>w Move to window below current window: <Ctrl-W>j Move to window above current window: <Ctrl-W>k Move to window left of current window: <Ctrl-W>h Move to window right of current window: <Ctrl-W>l Set textwidth for automatic line-wrapping as you type: :set textwidth=80 Turn on syntax highlighting :syn on Turn it off: :syn off Force the filetype for syntax highlighting: :set filetype=python :set filetype=c :set filetype=php Use lighter coloring scheme for a dark background: :set background=dark Htmlize a file using the current syntax highlighting: :so $VIMRUNTIME/syntax/2html.vim Or, htmlize from a command prompt: in 2html.sh put: #!/bin/sh vim -n -c ':so $VIMRUNTIME/syntax/2html.vim' -c ':wqa' $1 > /dev/null 2> /dev/null Now just run: shell> 2html.sh foo.py
Document originally from http://www.cs.ualberta.ca/~luca/tricks.vim.html
updated and maintained by Greg Lawler