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