40 lines
739 B
Markdown
40 lines
739 B
Markdown
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# Why vi Rocks
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A collection of commands, command sequences in [vi(1)](https://man.openbsd.org/vi.1)/[ex(1)](https://man.openbsd.org/ex.1) or with 3rd party unitilities.<br />
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These all work with at least [nvi](https://en.wikipedia.org/wiki/Nvi) 1.79 and 2.1.3 (unicode).
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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 new line
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5) paste with P or p
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#### Join all lines in a file
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:%j
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#### When you need root permissions to write the file
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:w !doas tee %
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#### Diff the file on disk with the file in cache
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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 lines
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:%!sort
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#### Dedup lines
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:%!uniq
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