Man Command Information page

Linux environment using man to query some keywords, a keyword may be a lot of introduction, we understand the information page can be used in the command:

SUMMARY of less COMMANDS

Commands marked with * May is preceded by a number, N.
Notes in parentheses indicate the behavior if N is given.
A key preceded by a caret indicates the Ctrl key; Thus ^k is ctrl-k.

H-H Display this help.
Q:q q:q ZZ Exit.
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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 one half screen width (or N positions).

esc-(Leftarrow * Right one half screen width (or N positions).
F Forward Forever; Like "Tail-f".
R ^r ^l Repaint screen.
R Repaint screen, discarding buffered input.
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Default "Window" is the screen height.
The Default "Half-window" is half of the screen height.
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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.
&pattern * Display only matching lines
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A search pattern May is preceded 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.
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Jumping

G < esc-< * Go to First line on file (or line N).
G > Esc-> * Go to last line on file (or line N).
P% * Go to beginning of the file (or N percent into file).
T * Go to the (n-th) next tag.
T * Go to the (n-th) previous tag.
{([* Find close bracket})].
})] * Find open bracket {([.
Esc-^f <c1> <c2> * Find close bracket <c2>.
Esc-^b <c1> <c2> * Find open bracket <c1>
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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 '.
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A mark is any upper-case or lower-case letter.
Certain Marks is predefined:
^ means beginning of the file
$ means end of the file
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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.
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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".
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OPTIONS

Most options are changed either on the command line,

or from within less by using the-or--command.
Options May is given in one of the Forms:either a single
Character preceded by a-, or a name preceded by--.

-? ........--help
Display help (from command line).
-A ...--search-skip-screen
Search Skips current Screen.
-A ...--search-skip-screen
SEARCH starts just after target line.
-b [N] .....--buffers=[n]
Number O F buffers.
-B ...--auto-buffers
Don ' t automatically allocate buffers for pipes.
-C ...--clear-screen
Rep Aint by clearing rather than scrolling.
-D ...--dumb
Dumb terminal.
-D [XN.N].--COLOR=XN.N
Set screen colors. (MS-DOS only)
-e-e ....--quit-at-eof--quit-at-eof

-F ...--force
Force open non-regular files.
-f ...--quit-if-one-screen
quit if entire file fit s on first screen.
-G ...--hilite-search
Highlight only the last match for searches.
-G ...--hilite-search
Don ' t hig Hlight any matches for searches.
-H [N] ....--max-back-scroll=[n]
Backward scroll limit.
-I.--ignore-case
Ignore case in Searche s that does not contain uppercase.
-I ...--ignore-case
IGNORE case in all searches.
-j [N] .....--jump-target=[n]
screen position of T Arget lines.
-j ...--status-column
Display a status column at the left edge of the screen.
-K [file].--lesskey-file=[file]
Use a Lesskey file.
-K--quit-on-intr
Exit Less in response to ctrl-c.
-L ...--no-lessopen

Ignore the Lessopen environment variable.
-m-m ....--long-prompt--long-prompt
Set prompt style.
-n-n ....--line-numbers--line-numbers
Don t u SE 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]
Defi Ne new prompt.
-q-q ....--quiet--quiet--silent--silent
Quiet The terminal bell.
-r-r ....--raw-control-chars--raw-co Ntrol-chars
Output "raw" control characters.
-S ...--squeeze-blank-lines
squeeze multiple blank lines.< br>-S ...--chop-long-lines
Chop (truncate) long lines rather than wrapping.

-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
Hi Ghlight 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 SC Roll 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.
-# [N] ....--shift=[n]
Horizontal Scroll Amount (0 = one half screen width)
.....--no-keypad
Don ' t send termcap keypad init/deinit strings.
.....--follow-name
The F command changes files if the input file is renamed.

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Man Command Information page