A shell function will do nothing unless it is explicitly called by other code, typically in a shell script. A shell script is a running executable process, which can call other shell scripts and/or functions. Typical operations performed by shell scripts include file manipulation, program execution, and printing text.
Answer:
<em>Every </em><em>couple</em><em> </em><em>of </em><em>month </em><em>or </em><em>whatever </em><em>you </em><em>give </em><em>it </em><em>to </em><em>someone</em><em> </em><em>else</em>
The acronym RFID (Radio Frequency Identification) describes
networked devices that contain microcomputers but are not thought of as
computing devices, such as refrigerators, automobile components, light
bulbs, and industrial control devices. RFIDs are battery-powered sensors that gather and transmit data to a reading device. Some sensor based technologies are scanning electron microscopes, LiDAR,radar, GPS, x-ray, sonar, infrared and seismic.