| LevSelector.com |
Commands marked with * may be preceded by a number, N.
Notes in parentheses indicate the behavior if N is given.
h H
Display this help.
q :q Q :Q ZZ
Exit.
---------------------------------------------------------------------------
MOVING
e ^E j ^N CR * Forward
one line (or N lines).
y ^Y k ^K ^P * Backward
one line (or N lines).
f ^F ^V SPACE * Forward
one window (or N lines).
b ^B ESC-v *
Backward one window (or N lines).
z
* Forward one window (and set window to N).
w
* Backward one window (and set window to N).
ESC-SPACE
* Forward one window, but don't stop at end-of-file.
d ^D
* Forward one half-window (and set half-window to N).
u ^U
* Backward one half-window (and set half-window to N).
ESC-( RightArrow * Left 8 character positions
(or N positions).
ESC-) LeftArrow * Right 8 character positions
(or N positions).
F
Forward forever; like "tail -f".
r ^R ^L
Repaint screen.
R
Repaint screen, discarding buffered input.
---------------------------------------------------
Default "window" is
the screen height.
Default "half-window"
is half of the screen height.
---------------------------------------------------------------------------
SEARCHING
/pattern
* Search forward for (N-th) matching line.
?pattern
* Search backward for (N-th) matching line.
n
* Repeat previous search (for N-th occurrence).
N
* Repeat previous search in reverse direction.
ESC-n
* Repeat previous search, spanning files.
ESC-N
* Repeat previous search, reverse dir. & spanning files.
ESC-u
Undo (toggle) search highlighting.
---------------------------------------------------
Search patterns may
be modified by one or more of:
^N or ! Search
for NON-matching lines.
^E or * Search
multiple files (pass thru END OF FILE).
^F or @ Start
search at FIRST file (for /) or last file (for ?).
^K
Highlight matches, but don't move (KEEP position).
^R
Don't use REGULAR EXPRESSIONS.
---------------------------------------------------------------------------
JUMPING
g < ESC-<
* Go to first line in file (or line N).
G > ESC->
* Go to last line in file (or line N).
p %
* Go to beginning of file (or N percent into file).
{ ( [
* Find close bracket } ) ].
} ) ]
* Find open bracket { ( [.
ESC-^F <c1> <c2> * Find close bracket
<c2>.
ESC-^B <c1> <c2> * Find open bracket <c1>
---------------------------------------------------
Each "find close bracket"
command goes forward to the close bracket
matching
the (N-th) open bracket in the top line.
Each "find open bracket"
command goes backward to the open bracket
matching
the (N-th) close bracket in the bottom line.
m<letter>
Mark the current position with <letter>.
'<letter>
Go to a previously marked position.
''
Go to the previous position.
^X^X
Same as '.
---------------------------------------------------
A mark is any upper-case
or lower-case letter.
Certain marks are predefined:
^ means beginning of the file
$ means end of the file
---------------------------------------------------------------------------
CHANGING FILES
:e [file]
Examine a new file.
^X^V
Same as :e.
:n
* Examine the (N-th) next file from the command line.
:p
* Examine the (N-th) previous file from the command line.
:x
* Examine the first (or N-th) file from the command line.
:d
Delete the current file from the command line list.
= ^G :f
Print current file name.
---------------------------------------------------------------------------
MISCELLANEOUS COMMANDS
-<flag>
Toggle a command line option [see OPTIONS below].
--<name>
Toggle a command line option, by name.
_<flag>
Display the setting of a command line option.
__<name>
Display the setting of an option, by name.
+cmd
Execute the less cmd each time a new file is examined.
!command
Execute the shell command with $SHELL.
|Xcommand
Pipe file between current pos & mark X to shell command.
v
Edit the current file with $VISUAL or $EDITOR.
V
Print version number of "less".
---------------------------------------------------------------------------
OPTIONS
Most options may be changed
either on the command line,
or from within less
by using the - or -- command.
Options may be given
in one of two forms: either a single
character preceded by
a -, or a name preceeded by --.
-? ........ --help
Display help (from command line).
-a ........ --search-skip-screen
Forward search skips current screen.
-b [N] .... --buffers=[N]
Number of buffers.
-B ........ --auto-buffers
Don't automatically allocate buffers for pipes.
-c -C .... --clear-screen --CLEAR-SCREEN
Repaint by scrolling/clearing.
-d ........ --dumb
Dumb terminal.
-D [xn.n] . --color=xn.n
Set screen colors. (MS-DOS only)
-e -E .... --quit-at-eof --QUIT-AT-EOF
Quit at end of file.
-f ........ --force
Force open non-regular files.
-g ........ --hilite-search
Highlight only last match for searches.
-G ........ --HILITE-SEARCH
Don't highlight any matches for searches.
-h [N] .... --max-back-scroll=[N]
Backward scroll limit.
-i ........ --ignore-case
Ignore case in searches.
-I ........ --IGNORE-CASE
Ignore case in searches and in search patterns.
-j [N] .... --jump-target=[N]
Screen position of target lines.
-k [file] . --lesskey-file=[file]
Use a lesskey file.
-m -M .... --long-prompt --LONG-PROMPT
Set prompt style.
-n -N .... --line-numbers --LINE-NUMBERS
Use line numbers.
-o [file] . --log-file=[file]
Copy to log file (standard input only).
-O [file] . --LOG-FILE=[file]
Copy to log file (unconditionally overwrite).
-p [pattern] --pattern=[pattern]
Start at pattern (from command line).
-P [prompt] --prompt=[prompt]
Define new prompt.
-q -Q .... --quiet --QUIET
--silent --SILENT
Quiet the terminal bell.
-r ........ --raw-control-chars
Output "raw" control characters.
-s ........ --squeeze-blank-lines
Squeeze multiple blank lines.
-S ........ --chop-long-lines
Chop long lines.
-t [tag] .. --tag=[tag]
Find a tag.
-T [tagsfile] --tag-file=[tagsfile]
Use an alternate tags file.
-u -U .... --underline-special --UNDERLINE-SPECIAL
Change handling of backspaces.
-V ........ --version
Display the version number of "less".
-w ........ --hilite-unread
Highlight first new line after forward-screen.
-W ........ --HILITE-UNREAD
Highlight first new line after any forward movement.
-x [N] .... --tabs=[N]
Set tab stops.
-X ........ --no-init
Don't use termcap init/deinit strings.
-y [N] .... --max-forw-scroll=[N]
Forward scroll limit.
-z [N] .... --window=[N]
Set size of window.
-" [c[c]] . --quotes=[c[c]]
Set shell quote characters.
-~ ........ --tilde
Don't display tildes after end of file.
---------------------------------------------------------------------------
LINE EDITING
These keys can be used
to edit text being entered
on the "command line"
at the bottom of the screen.
RightArrow
ESC-l Move cursor right one character.
LeftArrow
ESC-h Move cursor left one character.
CNTL-RightArrow ESC-RightArrow ESC-w
Move cursor right one word.
CNTL-LeftArrow ESC-LeftArrow ESC-b
Move cursor left one word.
HOME
ESC-0 Move cursor to start of line.
END
ESC-$ Move cursor to end of line.
BACKSPACE
Delete char to left of cursor.
DELETE
ESC-x Delete char under cursor.
CNTL-BACKSPACE ESC-BACKSPACE
Delete word to left of cursor.
CNTL-DELETE ESC-DELETE
ESC-X Delete word under cursor.
CNTL-U
ESC (MS-DOS only) Delete
entire line.
UpArrow
ESC-k Retrieve previous command line.
DownArrow
ESC-j Retrieve next command line.
TAB
Complete filename & cycle.
SHIFT-TAB
ESC-TAB Complete filename & reverse cycle.
CNTL-L
Complete filename, list all.