IT244 - Introduction to Linux / Unix Instructor: Bo Sheng The vim Editor (ch 6) IT244 - Introduction to Linux / Unix Instructor: Bo Sheng

What’s vim vi iMproved Text editor Scripts Codes (C, Java, HTML) Configure files and short notes No format

Get Started Starting vim vim practice Emergency exit ESC, then “:q!”

Command and Input Modes

Command and Input Modes Command mode example :set number Enter input mode i / a : insert / append Back to command mode (ESC) Save the file and quit ZZ

Moving the Cursor In command mode In input mode Space, enter Arrow keys h, j, k, l In input mode

Edit Text Delete text In command mode In input mode x: delete a character dw: delete a word dd: delete a line In input mode backspace

Edit Text Add text Undo and redo In command mode i: insert (at the current cursor) a: append (precede the current cursor) o/O: open a new line (below/above) Undo and redo u :redo

Edit Text Work buffer Readonly mode Write to disk Quit (:q) Your editing is not automatically saved Readonly mode view filename vim -R filename Write to disk :w [filename] Quit (:q)

More about Moving the Cursor Space, Enter, {h,j,k,l} Search for a character in a line f/F fc, fa, Fc Repeat the last search: ; Moving by words w/W, b/B

More about Moving the Cursor Moving by words

More about Moving the Cursor Moving by lines j/k, up arrow/down arrow Enter/-

More about Moving the Cursor Moving by sentences/paragraphs ) , ( , } , { Moving within the screen H/M/L: top/middle/bottom line

More about Moving the Cursor

More about Moving the Cursor Page down/up CTRL+D / CTRL+U (half screen) CTRL+F / CTRL+B (full screen) Line numbers :set number #G

Input Mode Insert text i/I , a/A, o/O

Delete Text Table 6-1 (Pg 181) dw, d3w d0, d$ d), d(, d4), d{, d} dd, 5dd, dL d (enter), D

Change Text Table 6-2 (Pg 182) Change case cw, c3w c0, c$ c), c(, c4), c{, c} cc, 5cc, cL Change case ~, 5~

Search and Replace Search for a character Search for a string f/F, t/T, ; 2ft d2ft Search for a string /, ? Search ‘/’ and ‘?’ No string argument, n/N

Copy and Move Text Yank (y) Put (p/P) y (enter), Y, yy Copy text into a General-Purpose buffer Put (p/P) Copy text from the General-Purpose buffer Deleted text is also in the General-Purpose buffer

Read and Write Files Exit (zz) Read files Write to files [address]:r [filename] :r hello Write to files [address]:w [filename] :1,5w! :w >> filename

Execute Shell Commands in vim Spawn a new shell :sh ps -f Return to vim: CTRL+D, exit Directly execute :!command :!ls !!cat hello

Execute Shell Commands in vim Directly execute Use parts of the file as standard input vim months :1,5!sort