linux - Sending modem AT command and parsing result -


i send at command modem using shell script , parse result in order verify if ok returned.

at=`echo -ne "at+cfun1=1\r\n" > /dev/ttyusb0 | cat /dev/ttyusb0`

what best way parse at1 variable , extract "ok" or "error" otherwise ?

it absolutely possible send @ commands modem , capture output command line trying do, not using plain bash shell scripting. why wrote program atinout support scenarios ask about.

test following:

modem_device=/dev/ttyusb0  modem_output=`echo @ | atinout - $modem_device -` case $modem_output in         *ok*)                 echo "hurray, modem , running :)"                 ;;         *)                 echo "oh no! not working :("                 ;; esac

if intend parse output in more sophisticated way should save output file instead giving filename instead of last - , read that.


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