Annotation of src/usr.bin/less/less.hlp, Revision 1.5
1.1 etheisen 1:
1.2 millert 2: SSUUMMMMAARRYY OOFF CCOOMMMMAANNDDSS
1.1 etheisen 3:
4: Commands marked with * may be preceded by a number, _N.
5: Notes in parentheses indicate the behavior if _N is given.
1.5 ! shadchin 6: A key preceded by a caret indicates the Ctrl key; thus ^K is ctrl-K.
1.1 etheisen 7:
8: h H Display this help.
1.2 millert 9: q :q Q :Q ZZ Exit.
10: ---------------------------------------------------------------------------
1.1 etheisen 11:
1.2 millert 12: MMOOVVIINNGG
13:
14: e ^E j ^N CR * Forward one line (or _N lines).
15: y ^Y k ^K ^P * Backward one line (or _N lines).
1.1 etheisen 16: f ^F ^V SPACE * Forward one window (or _N lines).
17: b ^B ESC-v * Backward one window (or _N lines).
18: z * Forward one window (and set window to _N).
19: w * Backward one window (and set window to _N).
1.2 millert 20: ESC-SPACE * Forward one window, but don't stop at end-of-file.
1.1 etheisen 21: d ^D * Forward one half-window (and set half-window to _N).
22: u ^U * Backward one half-window (and set half-window to _N).
1.2 millert 23: ESC-) RightArrow * Left one half screen width (or _N positions).
24: ESC-( LeftArrow * Right one half screen width (or _N positions).
1.1 etheisen 25: F Forward forever; like "tail -f".
26: r ^R ^L Repaint screen.
27: R Repaint screen, discarding buffered input.
28: ---------------------------------------------------
29: Default "window" is the screen height.
30: Default "half-window" is half of the screen height.
1.2 millert 31: ---------------------------------------------------------------------------
32:
33: SSEEAARRCCHHIINNGG
34:
1.1 etheisen 35: /_p_a_t_t_e_r_n * Search forward for (_N-th) matching line.
36: ?_p_a_t_t_e_r_n * Search backward for (_N-th) matching line.
37: n * Repeat previous search (for _N-th occurrence).
38: N * Repeat previous search in reverse direction.
39: ESC-n * Repeat previous search, spanning files.
40: ESC-N * Repeat previous search, reverse dir. & spanning files.
41: ESC-u Undo (toggle) search highlighting.
1.4 shadchin 42: &_p_a_t_t_e_r_n * Display only matching lines
1.1 etheisen 43: ---------------------------------------------------
1.5 ! shadchin 44: A search pattern may be preceded by one or more of:
1.2 millert 45: ^N or ! Search for NON-matching lines.
46: ^E or * Search multiple files (pass thru END OF FILE).
47: ^F or @ Start search at FIRST file (for /) or last file (for ?).
48: ^K Highlight matches, but don't move (KEEP position).
49: ^R Don't use REGULAR EXPRESSIONS.
50: ---------------------------------------------------------------------------
51:
52: JJUUMMPPIINNGG
53:
1.1 etheisen 54: g < ESC-< * Go to first line in file (or line _N).
55: G > ESC-> * Go to last line in file (or line _N).
56: p % * Go to beginning of file (or _N percent into file).
1.2 millert 57: t * Go to the (_N-th) next tag.
58: T * Go to the (_N-th) previous tag.
59: { ( [ * Find close bracket } ) ].
60: } ) ] * Find open bracket { ( [.
61: ESC-^F _<_c_1_> _<_c_2_> * Find close bracket _<_c_2_>.
62: ESC-^B _<_c_1_> _<_c_2_> * Find open bracket _<_c_1_>
63: ---------------------------------------------------
64: Each "find close bracket" command goes forward to the close bracket
65: matching the (_N-th) open bracket in the top line.
66: Each "find open bracket" command goes backward to the open bracket
67: matching the (_N-th) close bracket in the bottom line.
68:
1.1 etheisen 69: m_<_l_e_t_t_e_r_> Mark the current position with <letter>.
70: '_<_l_e_t_t_e_r_> Go to a previously marked position.
71: '' Go to the previous position.
72: ^X^X Same as '.
1.2 millert 73: ---------------------------------------------------
74: A mark is any upper-case or lower-case letter.
75: Certain marks are predefined:
76: ^ means beginning of the file
77: $ means end of the file
78: ---------------------------------------------------------------------------
79:
80: CCHHAANNGGIINNGG FFIILLEESS
1.1 etheisen 81:
82: :e [_f_i_l_e] Examine a new file.
83: ^X^V Same as :e.
84: :n * Examine the (_N-th) next file from the command line.
85: :p * Examine the (_N-th) previous file from the command line.
86: :x * Examine the first (or _N-th) file from the command line.
1.2 millert 87: :d Delete the current file from the command line list.
1.1 etheisen 88: = ^G :f Print current file name.
1.2 millert 89: ---------------------------------------------------------------------------
90:
91: MMIISSCCEELLLLAANNEEOOUUSS CCOOMMMMAANNDDSS
1.1 etheisen 92:
1.2 millert 93: -_<_f_l_a_g_> Toggle a command line option [see OPTIONS below].
94: --_<_n_a_m_e_> Toggle a command line option, by name.
95: __<_f_l_a_g_> Display the setting of a command line option.
96: ___<_n_a_m_e_> Display the setting of an option, by name.
1.1 etheisen 97: +_c_m_d Execute the less cmd each time a new file is examined.
98:
1.2 millert 99: !_c_o_m_m_a_n_d Execute the shell command with $SHELL.
1.1 etheisen 100: |XX_c_o_m_m_a_n_d Pipe file between current pos & mark XX to shell command.
101: v Edit the current file with $VISUAL or $EDITOR.
1.2 millert 102: V Print version number of "less".
103: ---------------------------------------------------------------------------
1.1 etheisen 104:
1.2 millert 105: OOPPTTIIOONNSS
1.1 etheisen 106:
1.2 millert 107: Most options may be changed either on the command line,
108: or from within less by using the - or -- command.
109: Options may be given in one of two forms: either a single
1.3 jsg 110: character preceded by a -, or a name preceded by --.
1.2 millert 111:
112: -? ........ --help
113: Display help (from command line).
114: -a ........ --search-skip-screen
1.5 ! shadchin 115: Search skips current screen.
1.4 shadchin 116: -A ........ --SEARCH-SKIP-SCREEN
1.5 ! shadchin 117: Search starts just after target line.
1.2 millert 118: -b [_N] .... --buffers=[_N]
119: Number of buffers.
120: -B ........ --auto-buffers
121: Don't automatically allocate buffers for pipes.
1.4 shadchin 122: -c ........ --clear-screen
123: Repaint by clearing rather than scrolling.
1.2 millert 124: -d ........ --dumb
125: Dumb terminal.
126: -D [_x_n_._n] . --color=_x_n_._n
127: Set screen colors. (MS-DOS only)
128: -e -E .... --quit-at-eof --QUIT-AT-EOF
129: Quit at end of file.
130: -f ........ --force
131: Force open non-regular files.
132: -F ........ --quit-if-one-screen
133: Quit if entire file fits on first screen.
134: -g ........ --hilite-search
135: Highlight only last match for searches.
136: -G ........ --HILITE-SEARCH
137: Don't highlight any matches for searches.
138: -h [_N] .... --max-back-scroll=[_N]
139: Backward scroll limit.
140: -i ........ --ignore-case
141: Ignore case in searches that do not contain uppercase.
142: -I ........ --IGNORE-CASE
143: Ignore case in all searches.
144: -j [_N] .... --jump-target=[_N]
145: Screen position of target lines.
146: -J ........ --status-column
147: Display a status column at left edge of screen.
148: -k [_f_i_l_e] . --lesskey-file=[_f_i_l_e]
149: Use a lesskey file.
1.4 shadchin 150: -K --quit-on-intr
151: Exit less in response to ctrl-C.
1.2 millert 152: -L ........ --no-lessopen
153: Ignore the LESSOPEN environment variable.
154: -m -M .... --long-prompt --LONG-PROMPT
155: Set prompt style.
156: -n -N .... --line-numbers --LINE-NUMBERS
1.4 shadchin 157: Don't use line numbers.
1.2 millert 158: -o [_f_i_l_e] . --log-file=[_f_i_l_e]
159: Copy to log file (standard input only).
160: -O [_f_i_l_e] . --LOG-FILE=[_f_i_l_e]
161: Copy to log file (unconditionally overwrite).
162: -p [_p_a_t_t_e_r_n] --pattern=[_p_a_t_t_e_r_n]
163: Start at pattern (from command line).
164: -P [_p_r_o_m_p_t] --prompt=[_p_r_o_m_p_t]
165: Define new prompt.
166: -q -Q .... --quiet --QUIET --silent --SILENT
167: Quiet the terminal bell.
168: -r -R .... --raw-control-chars --RAW-CONTROL-CHARS
169: Output "raw" control characters.
170: -s ........ --squeeze-blank-lines
171: Squeeze multiple blank lines.
172: -S ........ --chop-long-lines
1.5 ! shadchin 173: Chop (truncate) long lines rather than wrapping.
1.2 millert 174: -t [_t_a_g] .. --tag=[_t_a_g]
175: Find a tag.
176: -T [_t_a_g_s_f_i_l_e] --tag-file=[_t_a_g_s_f_i_l_e]
177: Use an alternate tags file.
178: -u -U .... --underline-special --UNDERLINE-SPECIAL
179: Change handling of backspaces.
180: -V ........ --version
181: Display the version number of "less".
182: -w ........ --hilite-unread
183: Highlight first new line after forward-screen.
184: -W ........ --HILITE-UNREAD
185: Highlight first new line after any forward movement.
186: -x [_N[,...]] --tabs=[_N[,...]]
187: Set tab stops.
188: -X ........ --no-init
189: Don't use termcap init/deinit strings.
190: -y [_N] .... --max-forw-scroll=[_N]
191: Forward scroll limit.
192: -z [_N] .... --window=[_N]
193: Set size of window.
194: -" [_c[_c]] . --quotes=[_c[_c]]
195: Set shell quote characters.
196: -~ ........ --tilde
197: Don't display tildes after end of file.
198: -# [_N] .... --shift=[_N]
199: Horizontal scroll amount (0 = one half screen width)
1.4 shadchin 200: ........ --no-keypad
1.5 ! shadchin 201: Don't send termcap keypad init/deinit strings.
1.4 shadchin 202: ........ --follow-name
203: The F command changes files if the input file is renamed.
204:
1.2 millert 205:
206: ---------------------------------------------------------------------------
207:
208: LLIINNEE EEDDIITTIINNGG
209:
210: These keys can be used to edit text being entered
211: on the "command line" at the bottom of the screen.
212:
213: RightArrow ESC-l Move cursor right one character.
214: LeftArrow ESC-h Move cursor left one character.
1.5 ! shadchin 215: ctrl-RightArrow ESC-RightArrow ESC-w Move cursor right one word.
! 216: ctrl-LeftArrow ESC-LeftArrow ESC-b Move cursor left one word.
1.2 millert 217: HOME ESC-0 Move cursor to start of line.
218: END ESC-$ Move cursor to end of line.
219: BACKSPACE Delete char to left of cursor.
220: DELETE ESC-x Delete char under cursor.
1.5 ! shadchin 221: ctrl-BACKSPACE ESC-BACKSPACE Delete word to left of cursor.
! 222: ctrl-DELETE ESC-DELETE ESC-X Delete word under cursor.
! 223: ctrl-U ESC (MS-DOS only) Delete entire line.
1.2 millert 224: UpArrow ESC-k Retrieve previous command line.
225: DownArrow ESC-j Retrieve next command line.
226: TAB Complete filename & cycle.
227: SHIFT-TAB ESC-TAB Complete filename & reverse cycle.
1.5 ! shadchin 228: ctrl-L Complete filename, list all.
1.1 etheisen 229:
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