- The environment variable TERM should normally contain the type name of
+ The environment variable TERM should normally contain the type name of
the terminal, console or display-device type you are using. This
information is critical for all screen-oriented programs, including
your editor and mailer.
- A default TERM value will be set on a per-line basis by either
- /etc/inittab (e.g., System-V-like UNIXes) or /etc/ttys (BSD UNIXes).
+ A default TERM value will be set on a per-line basis by either
+ /etc/inittab (e.g., System-V-like Unices) or /etc/ttys (BSD Unices).
This will nearly always suffice for workstation and microcomputer
consoles.
If you use a dialup line, the type of device attached to it may vary.
- Older UNIX systems pre-set a very dumb terminal type like "dumb" or
+ Older Unix systems pre-set a very dumb terminal type like "dumb" or
"dialup" on dialup lines. Newer ones may pre-set "vt100", reflecting
the prevalence of DEC VT100-compatible terminals and personal-computer
emulators.
- Modern telnets pass your TERM environment variable from the local side
+ Modern telnets pass your TERM environment variable from the local side
to the remote one. There can be problems if the remote terminfo or
termcap entry for your type is not compatible with yours, but this
situation is rare and can almost always be avoided by explicitly
exporting "vt100" (assuming you are in fact using a VT100-superset
- console, terminal, or terminal emulator.)
+ console, terminal, or terminal emulator).
- In any case, you are free to override the system TERM setting to your
- taste in your shell profile. The tset(1) utility may be of assistance;
+ In any case, you are free to override the system TERM setting to your
+ taste in your shell profile. The tset(1) utility may be of assistance;
you can give it a set of rules for deducing or requesting a terminal
type based on the tty device and baud rate.
- Setting your own TERM value may also be useful if you have created a
+ Setting your own TERM value may also be useful if you have created a
custom entry incorporating options (such as visual bell or reverse-
video) which you wish to override the system default type for your
line.
@@ -88,24 +88,24 @@
underneath /usr/share/terminfo. To browse a list of all terminal names
recognized by the system, do
- toe | more
+ toe | more
from your shell. These capability files are in a binary format
- optimized for retrieval speed (unlike the old text-based termcap format
- they replace); to examine an entry, you must use the infocmp(1M)
+ optimized for retrieval speed (unlike the old text-based termcap format
+ they replace); to examine an entry, you must use the infocmp(1m)
command. Invoke it as follows:
- infocmp entry_name
+ infocmp entry_name
- where entry_name is the name of the type you wish to examine (and the
+ where entry_name is the name of the type you wish to examine (and the
name of its capability file the subdirectory of /usr/share/terminfo
named for its first letter). This command dumps a capability file in
- the text format described by terminfo(5).
+ the text format described by terminfo(5).
- The first line of a terminfo(5) description gives the names by which
+ The first line of a terminfo(5) description gives the names by which
terminfo knows a terminal, separated by "|" (pipe-bar) characters with
the last name field terminated by a comma. The first name field is the
- type's primaryname, and is the one to use when setting TERM. The last
+ type's primaryname, and is the one to use when setting TERM. The last
name field (if distinct from the first) is actually a description of
the terminal type (it may contain blanks; the others must be single
words). Name fields between the first and last (if present) are
@@ -129,23 +129,23 @@
name; some historical terminfo names use it.
The root name for a terminal or workstation console type should almost
- always begin with a vendor prefix (such as hp for Hewlett-Packard, wy
- for Wyse, or att for AT&T terminals), or a common name of the terminal
- line (vt for the VT series of terminals from DEC, or sun for Sun
- Microsystems workstation consoles, or regent for the ADDS Regent
+ always begin with a vendor prefix (such as hp for Hewlett-Packard, wy
+ for Wyse, or att for AT&T terminals), or a common name of the terminal
+ line (vt for the VT series of terminals from DEC, or sun for Sun
+ Microsystems workstation consoles, or regent for the ADDS Regent
series. You can list the terminfo tree to see what prefixes are
already in common use. The root name prefix should be followed when
- appropriate by a model number; thus vt100, hp2621, wy50.
+ appropriate by a model number; thus vt100, hp2621, wy50.
The root name for a PC-Unix console type should be the OS name, i.e.,
- linux, bsdos, freebsd, netbsd. It should not be console or any other
+ linux, bsdos, freebsd, netbsd. It should not be console or any other
generic that might cause confusion in a multi-platform environment! If
a model number follows, it should indicate either the OS release level
or the console driver release level.
The root name for a terminal emulator (assuming it does not fit one of
the standard ANSI or vt100 types) should be the program name or a
- readily recognizable abbreviation of it (i.e., versaterm, ctrm).
+ readily recognizable abbreviation of it (i.e., versaterm, ctrm).
Following the root name, you may add any reasonable number of hyphen-
separated feature suffixes.
@@ -183,47 +183,47 @@
Conventionally, if your terminal type is a variant intended to specify
a line height, that suffix should go first. So, for a hypothetical
FuBarCo model 2317 terminal in 30-line mode with reverse video, best
- form would be fubar-30-rv (rather than, say, "fubar-rv-30").
+ form would be fubar-30-rv (rather than, say, "fubar-rv-30").
Terminal types that are written not as standalone entries, but rather
- as components to be plugged into other entries via use capabilities,
+ as components to be plugged into other entries via use capabilities,
are distinguished by using embedded plus signs rather than dashes.
Commands which use a terminal type to control display often accept a -T
option that accepts a terminal name argument. Such programs should
- fall back on the TERM environment variable when no -T option is
+ fall back on the TERM environment variable when no -T option is
specified.
-