Define string when typed to be translated into text. If string and text are not specified, list all current abbreviations.

text

.

Append text at specified address, or at present address if one is not specified. Add a ! to switch the autoindent setting that will be used during input. That is, if autoindent was enabled, ! disables it.

Print the members of the argument list (files named on the command line), with the current argument printed within brackets ([ ]).

text

.

Replace the specified lines with text. Add a ! to switch the autoindent setting during input of text.

Copy the lines included in address to the specified destination address. The command t (short for "to") is a synonym for copy.

Delete the lines included in address. If buffer is specified, save or append the text to the named buffer. Buffer names are the lowercase letters a-z. Uppercase names append text to the buffer.

Begin editing on filename. If no filename is given, start over with a copy of the current file. Add a ! to edit the new file even if the current file has not been saved since the last change. With the +n argument, begin editing on line n. Or n may be a pattern, of the form /pattern.

Change the name of the current file to filename, which is considered "not edited." If no filename is specified, print the current status of the file.

Execute commands on all lines which contain pattern, or if address is specified, all lines within that range. If commands are not specified, print all such lines. Add a ! to execute commands on all lines not containing pattern.

text

.

Insert text at line before the specified address, or at present address if none is specified. Add a ! to switch the autoindent setting during input of text.

Place the text in the specified range on one line, with whitespace adjusted to provide two space characters after a period (.), no space characters after a ), and one space character otherwise. Add a ! to prevent whitespace adjustment.

Mark the given address with char, a single lowercase letter. Return later to the line with 'x. k is equivalent to mark.

Print the specified lines so that tabs display as ^I and the ends of lines display as $.

Define a macro named char in visual mode with the specified sequence of commands. char is usually the sequence #n, representing a function key on the keyboard, or one or more characters.

Mark the specified line with char, a single lowercase letter. Return later to the line with 'x.

Move the lines specified by address to the destination address.

Edit the next file from the command-line argument list. Use args to list these files. If filelist is provided, replace the current argument list with filelist and begin editing on the first file. With the +n argument, begin editing on line n. Or n may be a pattern, of the form /pattern.

Print each line specified by address, preceded by its buffer line number. Use # as an alternate abbreviation for number.

Enter open mode (vi) at the lines specified by address, or at the lines matching pattern. Exit open mode with Q.

Save the current editor buffer as though the system was about to crash.

Print the lines specified by address. P is another abbreviation.

Restore previously deleted or yanked lines, from named buffer specified by char, to the line specified by address; if char is not specified, the last deleted or yanked text is restored.

Terminate current editing session. Use ! to discard changes made since the last save. If the editing session includes additional files in the argument list that have not yet been accessed, quit by typing q! or by typing q twice.

Copy the text of filename after the line specified by address. If filename is not specified, the current filename is used.

Read the output of command into the text after the line specified by address.

Recover filename from system save area.

Rewind argument list and begin editing the first file in the list. Add a ! to rewind even if the current file has not been saved since the last change.

Set a value to an option with each parameter, or if no parameter is supplied, print all options that have been changed from their defaults. For toggle options, each parameter can be phrased as "option" or "nooption," other options can be assigned with the syntax, "option=value". The form set option? displays the value of option.

Create a new shell. Resume editing when the shell is terminated.

Read and execute ex commands from filename.