Vi: Difference between revisions
→Advanced
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;Executing a filter command
# ‘!’ symbol is used within the command line of Vi editor to execute an external program.
# The line number 1 and the $ symbol in the above command can be replaced with any portion of the file with the numbers of the starting line and ending line of the particular portion.
*To sort the file from the first line to the last line
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:10,20 ! tr a-z A-Z
*Writing a portion of file, lines from 20 to 50 to a new file
:20,50 w > newfile.txt
;Inserting the output of a command executed within the Vi editor
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*Cursor movements
H The cursor is positioned at the first line of the screen
M The cursor is positioned at the middle line of the screen
L The cursor is positioned at the last line of the screen
*Scrolling through a file
Ctrl-f Scroll down by one screen
Ctrl-b Scroll up by one screen
Ctrl-u Scroll up by half a screen
Ctlr-d Scroll down by half a screen
zz Scroll the screen so that the current line appears at the middle of the screen, very useful for viewing the block of code associated with the current line.
*Editing a file opened without sudo
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*Powerful delete commands
di( Deletes all characters within the parentheses
di” Deletes all characters within the quotes
*Recovering a file, after a crash, from the swap file of the file being edited:
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