Hi all.
I want to echo some binary data to a GSM modem. I could do it well on
Ubuntu (bash shell) like this:
echo at+cmgs=\"123456\"$'\r\n'
and it write (at+cmgs="123456"<cr><lf>) to modem
But on sash and hush shell I couldn't do the same.
Plz tell me some way to echo binary data on those shell.
Thanks.
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