If you’re not familiar with the terminfo system, take a look at the x-man-page://5/terminfo man page. So some users would still need to know about using the recommended Xterm values with Terminal for compatibility with those.
They are just programs offering you a frontend (Graphical user interface) for your used shell programs like Bash or zhs (or original sh) what are responsible to present your textual input, parse it and then send it to operating system (Linux kernel) and they as well gets. Someone apparently has updated nsterm recently (sometime in the past couple of years), but I don’t know whether that has made its way into the ncurses distribution, and it may not be completely up to date with Terminal in 10.7. XTerm is the terminal program for X11 aka Xorg server and being very simple one. nsterm represents Terminal’s ancestor from NeXTSTEP. There isn’t one that’s up to date currently.Note that technically Terminal should have its own up-to-date terminfo values that describe exactly which features it supports, instead of using the values for Xterm, but: Sometimes people explicitly set TERM to xterm-color (as opposed to the recommended Xterm values) to disable functionality or work around incompatibilities between the available terminfo values on a particular computer and the terminal emulator being used. Prior to 10.7, xterm-color was the default because Terminal didn’t support some critical features described by the recommended Xterm terminfo values, e.g., Background Color Erase (BCE), modern codes for switching main/alternate screens, 256 colors. Xterm and Terminal are two different applications used in the computing world.
Differences between xterm and pterm mac os x#
In particular, xterm-256color is the default for Terminal starting with Mac OS X 10.7 Lion, with the next-best recommended values being xterm-16color or xterm (which only describes support for eight ANSI colors). Usually you’ll want to use xterm, xterm-16color or xterm-256color. xterm-color is not recommended, since it describes a variant of Xterm that’s less functional and that you’re not likely to be using. That means that the only difference between the two is color support and sgr. xterm-color describes an older branch of Xterm that supports eight colors. Try setting yor TERM variable to xterm-mono and then run dselect. Xterm-256color describes Xterm with support for 256 colors enabled.
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