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I'm doing a headless setup, where we use the Pis in field work (tracking movement of seals via camera in the Cape Cod area), and so we can only monitor it headless, without a separate display (to save on power).
In order to have the Pis get time, I need them to connect to my colleague's iPhones (which are operating as hotspots), and use ntpd to get time from the internet.
However, I haven't yet figured out what the command is to query the WiFi network name, to confirm that it is connected to the right network - is there one?

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Your job sounds awesome! Where can I learn more about your work? – tubes Jan 19 at 15:07
Our lab website: runstadlerlab.mit.edu :D Personal website: ericmajinglong.com – ericmjl Jan 19 at 20:41
up vote 15 down vote accepted

iwgetid will give you the SSID

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Try iwconfig:

user@host:~ $ iwconfig
wlan0     unassociated  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency=2.412 GHz  Access Point: Not-Associated
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
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