{"id":79,"date":"2018-07-25T13:16:20","date_gmt":"2018-07-25T09:16:20","guid":{"rendered":"http:\/\/kidds.co.za\/?p=79"},"modified":"2018-07-25T14:43:41","modified_gmt":"2018-07-25T10:43:41","slug":"vi-cheatsheet","status":"publish","type":"post","link":"https:\/\/kidds.co.za\/index.php\/2018\/07\/25\/vi-cheatsheet\/","title":{"rendered":"Vi Cheatsheet – Basics"},"content":{"rendered":"

Vi Cheat Sheet – Basics<\/h3>\n

 <\/p>\n

<\/a><\/p>\n

Modes<\/h2>\n
\n\n\n\n
Vi has two modes insertion mode and command mode. The editor begins in command mode, where the cursor movement and text deletion and pasting occur. Insertion mode begins upon entering an insertion or change command. [ESC] returns the editor to command mode (where you can quit, for example by typing :q!). Most commands execute as soon as you type them except for “colon” commands which execute when you press the ruturn key.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Quitting<\/h2>\n
\n\n\n\n\n\n\n
: x<\/td>\nExit, saving changes (no space between : and x)<\/td>\n<\/tr>\n
:q<\/td>\nExit as long as there have been no changes<\/td>\n<\/tr>\n
ZZ<\/td>\nExit and save changes if any have been made<\/td>\n<\/tr>\n
:q!<\/td>\nExit and ignore any changes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Inserting Text<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
i<\/td>\nInsert before cursor<\/td>\n<\/tr>\n
I<\/td>\nInsert before line<\/td>\n<\/tr>\n
a<\/td>\nAppend after cursor<\/td>\n<\/tr>\n
A<\/td>\nAppend after line<\/td>\n<\/tr>\n
o<\/td>\nOpen a new line after current line<\/td>\n<\/tr>\n
O<\/td>\nOpen a new line before current line<\/td>\n<\/tr>\n
r<\/td>\nReplace one character<\/td>\n<\/tr>\n
R<\/td>\nReplace many characters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Motion<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
h<\/td>\nMove left<\/td>\n<\/tr>\n
j<\/td>\nMove down<\/td>\n<\/tr>\n
k<\/td>\nMove up<\/td>\n<\/tr>\n
l<\/td>\nMove right<\/td>\n<\/tr>\n
w<\/td>\nMove to next word<\/td>\n<\/tr>\n
W<\/td>\nMove to next blank delimited word<\/td>\n<\/tr>\n
b<\/td>\nMove to the beginning of the word<\/td>\n<\/tr>\n
B<\/td>\nMove to the beginning of blank delimted word<\/td>\n<\/tr>\n
e<\/td>\nMove to the end of the word<\/td>\n<\/tr>\n
E<\/td>\nMove to the end of Blank delimited word<\/td>\n<\/tr>\n
(<\/td>\nMove a sentence back<\/td>\n<\/tr>\n
)<\/td>\nMove a sentence forward<\/td>\n<\/tr>\n
{<\/td>\nMove a paragraph back<\/td>\n<\/tr>\n
}<\/td>\nMove a paragraph forward<\/td>\n<\/tr>\n
0<\/td>\nMove to the begining of the line<\/td>\n<\/tr>\n
$<\/td>\nMove to the end of the line<\/td>\n<\/tr>\n
1G<\/td>\nMove to the first line of the file<\/td>\n<\/tr>\n
G<\/td>\nMove to the last line of the file<\/td>\n<\/tr>\n
nG<\/td>\nMove to\u00a0nth line of the file<\/td>\n<\/tr>\n
:n<\/td>\nMove to\u00a0nth line of the file<\/td>\n<\/tr>\n
fc<\/td>\nMove forward to\u00a0c<\/td>\n<\/tr>\n
Fc<\/td>\nMove back to\u00a0c<\/td>\n<\/tr>\n
H<\/td>\nMove to top of screen<\/td>\n<\/tr>\n
M<\/td>\nMove to middle of screen<\/td>\n<\/tr>\n
L<\/td>\nMove to botton of screen<\/td>\n<\/tr>\n
%<\/td>\nMove to associated ( ), { }, [ ]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Deleting Text<\/h2>\n
\n\n\n\n
Almost all deletion commands are performed by typing d followed by a motion. For example, dw deletes a word. A few other deletes are:<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n
x<\/td>\nDelete character to the right of cursor<\/td>\n<\/tr>\n
X<\/td>\nDelete character to the left of cursor<\/td>\n<\/tr>\n
D<\/td>\nDelete to the end of the line<\/td>\n<\/tr>\n
dd<\/td>\nDelete current line<\/td>\n<\/tr>\n
:d<\/td>\nDelete current line<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Yanking Text<\/h2>\n
\n\n\n\n
Like deletion, almost all yank commands are performed by typing y followed by a motion. For example, y$ yanks to the end of the line. Two other yank commands are:<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
yy<\/td>\nYank the current line<\/td>\n<\/tr>\n
:y<\/td>\nYank the current line<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Changing text<\/h2>\n
\n\n\n\n
The change command is a deletion command that leaves the editor in insert mode. It is performed by typing c followed by a motion. For wxample cw changes a word. A few other change commands are:<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
C<\/td>\nChange to the end of the line<\/td>\n<\/tr>\n
cc<\/td>\nChange the whole line<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Putting text<\/h2>\n
\n\n\n\n\n
p<\/td>\nPut after the position or after the line<\/td>\n<\/tr>\n
P<\/td>\nPut before the poition or before the line<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Buffers<\/h2>\n
\n\n\n\n
Named buffers may be specified before any deletion, change, yank or put command. The general prefix has the form “c where c is any lowercase character. for example, “adw deletes a word into buffer a. It may thereafter be put back into text with an appropriate “ap.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Markers<\/h2>\n
\n\n\n\n
Named markers may be set on any line in a file. Any lower case letter may be a marker name. Markers may also be used as limits for ranges.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n
mc<\/td>\nSet marker\u00a0c\u00a0on this line<\/td>\n<\/tr>\n
`c<\/td>\nGo to beginning of marker\u00a0c\u00a0line.<\/td>\n<\/tr>\n
‘c<\/td>\nGo to first non-blank character of marker\u00a0c\u00a0line.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Search for strings<\/h2>\n
\n\n\n\n\n\n\n
\/string<\/td>\nSearch forward for\u00a0string<\/td>\n<\/tr>\n
?string<\/td>\nSearch back for\u00a0string<\/td>\n<\/tr>\n
n<\/td>\nSearch for next instance of\u00a0string<\/td>\n<\/tr>\n
N<\/td>\nSearch for previous instance of\u00a0string<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Replace<\/h2>\n
\n\n\n\n
The search and replace function is accomplished with the :s command. It is commonly used in combination with ranges or the :g command (below).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
:s\/pattern\/string\/flags<\/td>\nReplace\u00a0pattern\u00a0with\u00a0string\u00a0according to\u00a0flags.<\/td>\n<\/tr>\n
g<\/td>\nFlag – Replace all occurences of pattern<\/td>\n<\/tr>\n
c<\/td>\nFlag – Confirm replaces.<\/td>\n<\/tr>\n
&<\/td>\nRepeat last :s command<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Regular Expressions<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
. (dot)<\/td>\nAny single character except newline<\/td>\n<\/tr>\n
*<\/td>\nzero or more occurances of any character<\/td>\n<\/tr>\n
[…]<\/td>\nAny single character specified in the set<\/td>\n<\/tr>\n
[^…]<\/td>\nAny single character not specified in the set<\/td>\n<\/tr>\n
^<\/td>\nAnchor – beginning of the line<\/td>\n<\/tr>\n
$<\/td>\nAnchor – end of line<\/td>\n<\/tr>\n
\\<<\/td>\nAnchor – begining of word<\/td>\n<\/tr>\n
\\><\/td>\nAnchor – end of word<\/td>\n<\/tr>\n
\\(…\\)<\/td>\nGrouping – usually used to group conditions<\/td>\n<\/tr>\n
\\n<\/td>\nContents of\u00a0nth grouping<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n
[…] – Set Examples<\/caption>\n
[A-Z]<\/td>\nThe SET from Capital A to Capital Z<\/td>\n<\/tr>\n
[a-z]<\/td>\nThe SET from lowercase a to lowercase z<\/td>\n<\/tr>\n
[0-9]<\/td>\nThe SET from 0 to 9 (All numerals)<\/td>\n<\/tr>\n
[.\/=+]<\/td>\nThe SET containing . (dot), \/ (slash), =, and +<\/td>\n<\/tr>\n
[-A-F]<\/td>\nThe SET from Capital A to Capital F and the dash (dashes must be specified first)<\/td>\n<\/tr>\n
[0-9 A-Z]<\/td>\nThe SET containing all capital letters and digits and a space<\/td>\n<\/tr>\n
[A-Z][a-zA-Z]<\/td>\nIn the first position, the SET from Capital A to Capital Z
\nIn the second character position, the SET containing all letters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Regular Expression Examples<\/caption>\n
\/Hello\/<\/td>\nMatches if the line contains the value Hello<\/td>\n<\/tr>\n
\/^TEST$\/<\/td>\nMatches if the line contains TEST by itself<\/td>\n<\/tr>\n
\/^[a-zA-Z]\/<\/td>\nMatches if the line starts with any letter<\/td>\n<\/tr>\n
\/^[a-z].*\/<\/td>\nMatches if the first character of the line is a-z and there is at least one more of any character following it<\/td>\n<\/tr>\n
\/2134$\/<\/td>\nMatches if line ends with 2134<\/td>\n<\/tr>\n
\/\\(21|35\\)\/<\/td>\nMatches is the line contains 21 or 35
\nNote the use of ( ) with the pipe symbol to specify the ‘or’ condition<\/td>\n<\/tr>\n
\/[0-9]*\/<\/td>\nMatches if there are zero or more numbers in the line<\/td>\n<\/tr>\n
\/^[^#]\/<\/td>\nMatches if the first character is not a # in the line<\/td>\n<\/tr>\n
Notes:
\n1. Regular expressions are case sensitive
\n2. Regular expressions are to be used where\u00a0pattern\u00a0is specified<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Counts<\/h2>\n
\n\n\n\n
Nearly every command may be preceded by a number that specifies how many times it is to be performed. For example, 5dw will delete 5 words and 3fe will move the cursor forward to the 3rd occurence of the letter e. Even insertions may be repeated conveniently with thismethod, say to insert the same line 100 times.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Ranges<\/h2>\n
\n\n\n\n
Ranges may precede most “colon” commands and cause them to be executed on a line or lines. For example :3,7d would delete lines 3-7. Ranges are commonly combined with the :s command to perform a replacement on several lines, as with :.,$s\/pattern\/string\/g to make a replacement from the current line to the end of the file.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
:n,m<\/td>\nRange – Lines\u00a0n-m<\/td>\n<\/tr>\n
:.<\/td>\nRange – Current line<\/td>\n<\/tr>\n
:$<\/td>\nRange – Last line<\/td>\n<\/tr>\n
:’c<\/td>\nRange – Marker\u00a0c<\/td>\n<\/tr>\n
:%<\/td>\nRange – All lines in file<\/td>\n<\/tr>\n
:g\/pattern\/<\/td>\nRange – All lines that contain\u00a0pattern<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Files<\/h2>\n
\n\n\n\n\n\n\n\n\n
:w\u00a0file<\/td>\nWrite to\u00a0file<\/td>\n<\/tr>\n
:r\u00a0file<\/td>\nRead\u00a0file\u00a0in after line<\/td>\n<\/tr>\n
:n<\/td>\nGo to next file<\/td>\n<\/tr>\n
:p<\/td>\nGo to previos file<\/td>\n<\/tr>\n
:e\u00a0file<\/td>\nEdit\u00a0file<\/td>\n<\/tr>\n
!!program<\/td>\nReplace line with output from\u00a0program<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/p>\n

Other<\/h2>\n
\n\n\n\n\n\n\n\n
~<\/td>\nToggle upp and lower case<\/td>\n<\/tr>\n
J<\/td>\nJoin lines<\/td>\n<\/tr>\n
.<\/td>\nRepeat last text-changing command<\/td>\n<\/tr>\n
u<\/td>\nUndo last change<\/td>\n<\/tr>\n
U<\/td>\nUndo all changes to line<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Vi Cheat Sheet – Basics   Modes Vi has two modes insertion mode and command mode. The editor begins in command mode, where the cursor movement and text deletion and pasting occur. Insertion mode begins upon entering an insertion or change command. [ESC] returns the editor to command mode (where you can quit, for example […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,6],"tags":[],"class_list":["post-79","post","type-post","status-publish","format-standard","hentry","category-linux","category-vi"],"_links":{"self":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts\/79","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/comments?post=79"}],"version-history":[{"count":16,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts\/79\/revisions"}],"predecessor-version":[{"id":104,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/posts\/79\/revisions\/104"}],"wp:attachment":[{"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/media?parent=79"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/categories?post=79"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kidds.co.za\/index.php\/wp-json\/wp\/v2\/tags?post=79"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}