virtual utility

For instance, on Mac OS X, the wall utility short for" write all," because it writes a message to every physical or virtual terminal device is setgid tty ( as shown above).

例如，在Mac OS X中，wall工具（“write all”的缩写，因其会将某个消息写入所有物理或虚拟终端设备而得名）的setgid被设为tty（如上所示）。

Distributed Algorithm for Joint Network Utility and Lifetime Optimization in Virtual MIMO Sensor Networks

虚拟MIMO传感器网络中一种联合网络效用和生存时间优化的分布式算法

The jps utility lists the virtual machines for the current user on the target system.

jps工具为目标系统的当前用户列出虚拟机。