Less: Environment Variables (continued) and Other Information

commands to save in the history file. The default is 100. LESSKEYIN Name of the default lesskey source file. LESSKEY Name of the default lesskey binary file. (Not used if "$LESSKEYIN" exists.) LESSKEYIN_SYSTEM Name of the default system‐wide lesskey source file. LESSKEY_SYSTEM Name of the default system‐wide lesskey binary file. (Not used if "$LESSKEYIN_SYSTEM" exists.) LESSMETACHARS List of characters which are considered "metacharacters" by the shell. LESSMETAESCAPE Prefix which less will add before each metacharacter in a command sent to the shell. If LESSMETAESCAPE is an empty string, commands containing metacharacters will not be passed to the shell. LESSOPEN Command line to invoke the (optional) input‐preprocessor. LESSSECURE Runs less in "secure" mode. See discussion under SECURITY. LESSSEPARATOR String to be appended to a directory name in filename completion. LESSUTFBINFMT Format for displaying non‐printable Unicode code points. LESS_IS_MORE Emulate the more(1) command. LINES Sets the number of lines on the screen. Takes precedence over the number of lines specified by the TERM variable. (But if you have a windowing system which supports TIOCGWINSZ or WIOCGETD, the window system’s idea of the screen size takes precedence over the LINES and COLUMNS environment variables.) MORE Options which are passed to less automatically when running in more compatible mode. PATH User’s search path (used to find a lesskey file on MS‐DOS and OS/2 systems). SHELL The shell used to execute the ! command, as well as to expand filenames. TERM The type of terminal on which less is being run. VISUAL The name of the editor (used for the v command). SEE ALSO lesskey(1) COPYRIGHT Copyright (C) 1984‐2021 Mark Nudelman less is part of the GNU project and is free software. You can redistribute it and/or modify it under the terms of either (1) the GNU General Public License as published by the Free Software Foundation; or (2) the Less License. See the file README in the less distribution for more details regarding redistribution. You should have received a copy of the GNU General Public License along with the source for less; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111‐1307, USA. You should also have received a copy of the Less License; see the file LICENSE. less is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. AUTHOR Mark Nudelman Report bugs at https://github.com/gwsw/less/issues. For more information, see the less homepage at https://greenwoodsoftware.com/less Version 590: 03 Jun 2021 LESS(1)

This section continues describing the environment variables that affect the behavior of `less`, including LESSSEPARATOR, LESSUTFBINFMT, LESS_IS_MORE, LINES, MORE, PATH, SHELL, TERM, and VISUAL. It also provides information about copyright, the author, and bug reporting.