X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=doc%2Fhtml%2Fman%2Ftset.1.html;h=53ca0ae537ebf59fc3264e913ebd786a75b7cc58;hp=3345d2cc3298566f7959bdd46e15d1a6bcfb3567;hb=61790aa3ac9e0dff2b443ac567b174fc4d235b86;hpb=a8dfaf0998c91b39c5c0a4913987cd67ca622bff
diff --git a/doc/html/man/tset.1.html b/doc/html/man/tset.1.html
index 3345d2cc..53ca0ae5 100644
--- a/doc/html/man/tset.1.html
+++ b/doc/html/man/tset.1.html
@@ -1,6 +1,7 @@
@@ -59,8 +60,8 @@
This program initializes terminals.
- First, tset retrieves the current terminal mode settings for your ter-
- minal. It does this by successively testing
+ First, tset retrieves the current terminal mode settings for your
+ terminal. It does this by successively testing
o the standard error,
@@ -89,30 +90,30 @@
If the terminal type was not specified on the command-line, the -m
option mappings are then applied (see the section TERMINAL TYPE MAPPING
- for more information). Then, if the terminal type begins with a ques-
- tion mark ("?"), the user is prompted for confirmation of the terminal
- type. An empty response confirms the type, or, another type can be
- entered to specify a new type. Once the terminal type has been deter-
- mined, the terminal description for the terminal is retrieved. If no
- terminal description is found for the type, the user is prompted for
+ for more information). Then, if the terminal type begins with a
+ question mark ("?"), the user is prompted for confirmation of the
+ terminal type. An empty response confirms the type, or, another type
+ can be entered to specify a new type. Once the terminal type has been
+ determined, the terminal description for the terminal is retrieved. If
+ no terminal description is found for the type, the user is prompted for
another terminal type.
Once the terminal description is retrieved,
- o if the "-w" option is enabled, tset may update the terminal's win-
- dow size.
+ o if the "-w" option is enabled, tset may update the terminal's
+ window size.
If the window size cannot be obtained from the operating system,
- but the terminal description (or environment, e.g., LINES and COL-
- UMNS variables specify this), use this to set the operating sys-
- tem's notion of the window size.
+ but the terminal description (or environment, e.g., LINES and
+ COLUMNS variables specify this), use this to set the operating
+ system's notion of the window size.
o if the "-c" option is enabled, the backspace, interrupt and line
kill characters (among many other things) are set
- o unless the "-I" option is enabled, the terminal and tab initializa-
- tion strings are sent to the standard error output, and tset waits
- one second (in case a hardware reset was issued).
+ o unless the "-I" option is enabled, the terminal and tab
+ initialization strings are sent to the standard error output, and
+ tset waits one second (in case a hardware reset was issued).
o Finally, if the erase, interrupt and line kill characters have
changed, or are not set to their default values, their values are
@@ -155,8 +156,8 @@
-e Set the erase character to ch.
- -I Do not send the terminal or tab initialization strings to the ter-
- minal.
+ -I Do not send the terminal or tab initialization strings to the
+ terminal.
-i Set the interrupt character to ch.
@@ -166,8 +167,8 @@
TERMINAL TYPE MAPPING for more information.
-Q Do not display any values for the erase, interrupt and line kill
- characters. Normally tset displays the values for control charac-
- ters which differ from the system's default values.
+ characters. Normally tset displays the values for control
+ characters which differ from the system's default values.
-q The terminal type is displayed to the standard output, and the
terminal is not initialized in any way. The option "-" by itself
@@ -209,8 +210,8 @@
- When the terminal is not hardwired into the system (or the current sys-
- tem information is incorrect) the terminal type derived from the
+ When the terminal is not hardwired into the system (or the current
+ system information is incorrect) the terminal type derived from the
/etc/ttys file or the TERM environmental variable is often something
generic like network, dialup, or unknown. When tset is used in a
startup script it is often desirable to provide information about the
@@ -223,18 +224,18 @@
The argument to the -m option consists of an optional port type, an
optional operator, an optional baud rate specification, an optional
colon (":") character and a terminal type. The port type is a string
- (delimited by either the operator or the colon character). The opera-
- tor may be any combination of ">", "<", "@", and "!"; ">" means greater
- than, "<" means less than, "@" means equal to and "!" inverts the sense
- of the test. The baud rate is specified as a number and is compared
- with the speed of the standard error output (which should be the con-
- trol terminal). The terminal type is a string.
-
- If the terminal type is not specified on the command line, the -m map-
- pings are applied to the terminal type. If the port type and baud rate
- match the mapping, the terminal type specified in the mapping replaces
- the current type. If more than one mapping is specified, the first
- applicable mapping is used.
+ (delimited by either the operator or the colon character). The
+ operator may be any combination of ">", "<", "@", and "!"; ">" means
+ greater than, "<" means less than, "@" means equal to and "!" inverts
+ the sense of the test. The baud rate is specified as a number and is
+ compared with the speed of the standard error output (which should be
+ the control terminal). The terminal type is a string.
+
+ If the terminal type is not specified on the command line, the -m
+ mappings are applied to the terminal type. If the port type and baud
+ rate match the mapping, the terminal type specified in the mapping
+ replaces the current type. If more than one mapping is specified, the
+ first applicable mapping is used.
For example, consider the following mapping: dialup>9600:vt100. The
port type is dialup , the operator is >, the baud rate specification is
@@ -253,16 +254,16 @@
No whitespace characters are permitted in the -m option argument.
Also, to avoid problems with meta-characters, it is suggested that the
entire -m option argument be placed within single quote characters, and
- that csh users insert a backslash character ("\") before any exclama-
- tion marks ("!").
+ that csh users insert a backslash character ("\") before any
+ exclamation marks ("!").
A reset command appeared in 2BSD (April 1979), written by Kurt Shoens.
This program set the erase and kill characters to ^H (backspace) and @
respectively. Mark Horton improved that in 3BSD (October 1979), adding
- intr, quit, start/stop and eof characters as well as changing the pro-
- gram to avoid modifying any user settings.
+ intr, quit, start/stop and eof characters as well as changing the
+ program to avoid modifying any user settings.
Later in 4.1BSD (December 1980), Mark Horton added a call to the tset
program using the -I and -Q options, i.e., using that to improve the
@@ -270,15 +271,15 @@
the termcap database.
A separate tset command was provided in 2BSD by Eric Allman. While the
- oldest published source (from 1979) provides both tset and reset, All-
- man's comments in the 2BSD source code indicate that he began work in
- October 1977, continuing development over the next few years.
+ oldest published source (from 1979) provides both tset and reset,
+ Allman's comments in the 2BSD source code indicate that he began work
+ in October 1977, continuing development over the next few years.
In September 1980, Eric Allman modified tset, adding the code from the
existing "reset" feature when tset was invoked as reset. Rather than
simply copying the existing program, in this merged version, tset used
- the termcap database to do additional (re)initialization of the termi-
- nal. This version appeared in 4.1cBSD, late in 1982.
+ the termcap database to do additional (re)initialization of the
+ terminal. This version appeared in 4.1cBSD, late in 1982.
Other developers (e.g., Keith Bostic and Jim Bloom) continued to modify
tset until 4.4BSD was released in 1993.
@@ -293,71 +294,72 @@
The AT&T tput utility (AIX, HPUX, Solaris) incorporated the terminal-
mode manipulation as well as termcap-based features such as resetting
- tabstops from tset in BSD (4.1c), presumably with the intention of mak-
- ing tset obsolete. However, each of those systems still provides tset.
- In fact, the commonly-used reset utility is always an alias for tset.
-
- The tset utility provides for backward-compatibility with BSD environ-
- ments (under most modern UNIXes, /etc/inittab and getty(1) can set TERM
- appropriately for each dial-up line; this obviates what was tset's most
- important use). This implementation behaves like 4.4BSD tset, with a
- few exceptions specified here.
-
- A few options are different because the TERMCAP variable is no longer
+ tabstops from tset in BSD (4.1c), presumably with the intention of
+ making tset obsolete. However, each of those systems still provides
+ tset. In fact, the commonly-used reset utility is always an alias for
+ tset.
+
+ The tset utility provides for backward-compatibility with BSD
+ environments (under most modern UNIXes, /etc/inittab and getty(1) can
+ set TERM appropriately for each dial-up line; this obviates what was
+ tset's most important use). This implementation behaves like 4.4BSD
+ tset, with a few exceptions specified here.
+
+ A few options are different because the TERMCAP variable is no longer
supported under terminfo-based ncurses:
- o The -S option of BSD tset no longer works; it prints an error mes-
- sage to the standard error and dies.
+ o The -S option of BSD tset no longer works; it prints an error
+ message to the standard error and dies.
o The -s option only sets TERM, not TERMCAP.
- There was an undocumented 4.4BSD feature that invoking tset via a link
- named "TSET" (or via any other name beginning with an upper-case let-
- ter) set the terminal to use upper-case only. This feature has been
+ There was an undocumented 4.4BSD feature that invoking tset via a link
+ named "TSET" (or via any other name beginning with an upper-case
+ letter) set the terminal to use upper-case only. This feature has been
omitted.
The -A, -E, -h, -u and -v options were deleted from the tset utility in
- 4.4BSD. None of them were documented in 4.3BSD and all are of limited
- utility at best. The -a, -d, and -p options are similarly not docu-
- mented or useful, but were retained as they appear to be in widespread
- use. It is strongly recommended that any usage of these three options
- be changed to use the -m option instead. The -a, -d, and -p options
- are therefore omitted from the usage summary above.
-
- Very old systems, e.g., 3BSD, used a different terminal driver which
- was replaced in 4BSD in the early 1980s. To accommodate these older
- systems, the 4BSD tset provided a -n option to specify that the new
- terminal driver should be used. This implementation does not provide
+ 4.4BSD. None of them were documented in 4.3BSD and all are of limited
+ utility at best. The -a, -d, and -p options are similarly not
+ documented or useful, but were retained as they appear to be in
+ widespread use. It is strongly recommended that any usage of these
+ three options be changed to use the -m option instead. The -a, -d, and
+ -p options are therefore omitted from the usage summary above.
+
+ Very old systems, e.g., 3BSD, used a different terminal driver which
+ was replaced in 4BSD in the early 1980s. To accommodate these older
+ systems, the 4BSD tset provided a -n option to specify that the new
+ terminal driver should be used. This implementation does not provide
that choice.
- It is still permissible to specify the -e, -i, and -k options without
+ It is still permissible to specify the -e, -i, and -k options without
arguments, although it is strongly recommended that such usage be fixed
to explicitly specify the character.
- As of 4.4BSD, executing tset as reset no longer implies the -Q option.
+ As of 4.4BSD, executing tset as reset no longer implies the -Q option.
Also, the interaction between the - option and the terminal argument in
some historic implementations of tset has been removed.
- The -c and -w options are not found in earlier implementations. How-
- ever, a different window size-change feature was provided in 4.4BSD.
+ The -c and -w options are not found in earlier implementations.
+ However, a different window size-change feature was provided in 4.4BSD.
- o In 4.4BSD, tset uses the window size from the termcap description
- to set the window size if tset is not able to obtain the window
+ o In 4.4BSD, tset uses the window size from the termcap description
+ to set the window size if tset is not able to obtain the window
size from the operating system.
o In ncurses, tset obtains the window size using setupterm, which may
- be from the operating system, the LINES and COLUMNS environment
+ be from the operating system, the LINES and COLUMNS environment
variables or the terminal description.
- Obtaining the window size from the terminal description is common to
- both implementations, but considered obsolescent. Its only practical
+ Obtaining the window size from the terminal description is common to
+ both implementations, but considered obsolescent. Its only practical
use is for hardware terminals. Generally speaking, a window size would
- be unset only if there were some problem obtaining the value from the
- operating system (and setupterm would still fail). For that reason,
- the LINES and COLUMNS environment variables may be useful for working
- around window-size problems. Those have the drawback that if the win-
- dow is resized, those variables must be recomputed and reassigned. To
- do this more easily, use the resize(1) program.
+ be unset only if there were some problem obtaining the value from the
+ operating system (and setupterm would still fail). For that reason,
+ the LINES and COLUMNS environment variables may be useful for working
+ around window-size problems. Those have the drawback that if the
+ window is resized, those variables must be recomputed and reassigned.
+ To do this more easily, use the resize(1) program.
@@ -366,19 +368,19 @@
SHELL
tells tset whether to initialize TERM using sh or csh syntax.
- TERM Denotes your terminal type. Each terminal type is distinct,
+ TERM Denotes your terminal type. Each terminal type is distinct,
though many are similar.
TERMCAP
- may denote the location of a termcap database. If it is not an
- absolute pathname, e.g., begins with a "/", tset removes the vari-
- able from the environment before looking for the terminal descrip-
- tion.
+ may denote the location of a termcap database. If it is not an
+ absolute pathname, e.g., begins with a "/", tset removes the
+ variable from the environment before looking for the terminal
+ description.
/etc/ttys
- system port name to terminal type mapping database (BSD versions
+ system port name to terminal type mapping database (BSD versions
only).
/usr/share/terminfo
@@ -386,10 +388,10 @@
- csh(1), sh(1), stty(1), curs_terminfo(3x), tty(4), terminfo(5),
+ csh(1), sh(1), stty(1), curs_terminfo(3x), tty(4), terminfo(5),
ttys(5), environ(7)
- This describes ncurses version 6.1 (patch 20190720).
+ This describes ncurses version 6.2 (patch 20210102).