它甚至可以在伪设备中绘图，如postscript和png。

It can even plot on pseudo-devices such as postscript and PNG.

youdao

文件描述符 0、1 和 2 分配给了 /dev/null（Solaris 大量使用符号链接，所以这里显示了相应的伪设备）。

File descriptors 0, 1, and 2 are open to /dev/null (Solaris makes heavy use of symlinks, which is why the pseudo device is shown).

youdao

通过强制SSH分配一个伪tty设备(以便您可以直接与远程应用程序进行交互)，就可以解决这个问题。

You can resolve this by forcing SSH to allocate a pseudo-tty device so that you can interact directly with the remote application.

youdao