92 lines
1.9 KiB
Markdown
92 lines
1.9 KiB
Markdown
# Why vi Rocks
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**[vi](https://en.wikipedia.org/wiki/Vi)** is the _de facto_ standard
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Unix editor, you find it in every *NIX derived OS.
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Here you will find a collection of commands, command sequences in
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[vi(1)](https://man.openbsd.org/vi.1)/[ex(1)](https://man.openbsd.org/ex.1)
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or with 3rd party unitilities which make
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**[vi](https://en.wikipedia.org/wiki/Vi)** rock. These all work
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with at least [nvi](https://en.wikipedia.org/wiki/Nvi) 1.79 and
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2.1.3 (unicode).
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Helpful documents:<br />
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- [Roman Zolotarev: Edit text with vi(1)](https://rgz.ee/vi.html)<br />
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- [Jeff W: vi help](http://www.jeffw.com/vi/vi_help.txt)<br />
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- [Maarten Litmaath: vi reference](http://www.ungerhu.com/jxh/vi.html)<br />
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- [alphanrrrd: extremely concise cheatsheet](http://www.alphanrrrd.org/vi.html)<br />
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- [ViEmu: Graphical vi cheatsheet](http://www.viemu.com/a_vi_vim_graphical_cheat_sheet_tutorial.html)
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#### Yank / delete an arbitrary number of lines
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1) mark the first line: mk
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2) move to last line
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3a) yank: y'k
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3b) delete: d'k
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4) move to destination line
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5) put with P or p
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#### Apply regex to an arbitrary number of lines
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1) mark the first line: mk
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2) mark the last line: ml
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:'k,'ls/regex/power/g
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#### Add # to block of text
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:'k,'ls/.*/#&/
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#### Remove trailing whitespace of block of text
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:'k,'ls/\ *$//
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#### Write file as root
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:w !doas tee %
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#### Diff the file on disk with the file in the buffer
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:w !diff -u % -
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#### Make a backup of the file on disk
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:!cp % %.bak
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#### Sort all lines
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:%!sort
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#### Sort paragraph
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!}sort
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#### Sort from current line to EOF
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!Gsort
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<sub><sup>G won't be shown in the command.</sup></sub>
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#### Uniq all lines
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:%!uniq
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#### Uniq paragraph
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!}uniq
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#### Uniq from current line to EOF
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!Guniq
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<sub><sup>G won't be shown in the command.</sup></sub>
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#### Join all lines
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:%j
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#### Select a column (3rd) from formated text seperated by ':'
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:%!awk -F':' '{print $3}'
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