toe program lists entries in the ncurses terminal database, but its may not be useful in a simple menu.
For instance, Debian's ncurses-base package lists someone's notion of the most common terminal descriptions:
This package contains terminfo data files to support the most common types of terminal, including ansi, dumb, linux, rxvt, screen, sun, vt100, vt102, vt220, vt52, and xterm.
The selection is ad hoc, and reflects bug reports. Checking the actual package;
ansi cons25 cons25-debian cygwin dumb Eterm Eterm-color hurd linux mach
mach-bold mach-color mach-gnu mach-gnu-color pcansi rxvt rxvt-basic rxvt-m
rxvt-unicode screen screen-256color screen-256color-bce screen-bce screen-s
screen-w sun vt100 vt102 vt220 vt52 wsvt25 wsvt25m xterm xterm-256color
xterm-color xterm-debian xterm-mono xterm-r5 xterm-r6 xterm-vt220 xterm-xfree86
or 41 entries. Looking at the list, there are several places to disagree:
xterm-xfree86 was deprecated in favor of
xterm-new 12 years ago.
- users for
hurd (and the related
mach entries) are few, and
- it includes none of the corrected entries for konsole or vte. To get those (as well as the corrected 256color variants), you would need
ncurses-term (which has 2675 entries).
infocmp program is not ncurses-specific, so you would be able to use that on more platforms — to check for existence. But if you want to check for existence (and look at specific capabilities),
tput is the place to start.
On most of the systems you are likely to use, you would be using ncurses terminal database — or some packager-defined subset. Since the ncurses terminal database defines the 256color variants by appending the
"-256color" to the recommended name for the terminal, the way you would find a suitable one is by simply testing for the existence of the preferred name with the suffix.