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Full Discussion: Little script with minicom
Top Forums Shell Programming and Scripting Little script with minicom Post 302626651 by neutronscott on Thursday 19th of April 2012 01:45:02 PM
Old 04-19-2012
Quote:
Originally Posted by enaud
I have doing a script :
This is a script you already had? Did it ever work? Smilie

Quote:
Originally Posted by enaud
but i not have a control!
What do you mean?

Quote:
Originally Posted by enaud
Sorry but i not undstand this string:
exec 3<&1 >"$modem" <"$modem"

you can explain me, thank!
You see you do "</dev/ttyUSB3 >/dev/ttyUSB3" after each chat. By using exec, we basically permanently redirect. First though we copy the current stdout to 3 so we can use it later to print messages. So in this way, the modem is not open/closed between programs, which I found may cause problems with some things ...

Your script doesn't use chat to it's ability. It doesn't check response. To avoid quoting issues, place this in a separate file (ie: omnitel.chat)
Code:
ABORT    'NO CARRIER'
ABORT    ERROR
''       AT+CREG?
OK       'AT!PADSETUP=1,2,82.91.28.127,0,9940,0,1'
OK       'AT+CGDCONT=1,"IP","web.omnitel.it"'
OK       'AT!PADCONN=1'
CONNECT  '\c'

Then your shell code would be easier
Code:
modem=/dev/ttyUSB3
file=/home/giuseppe/Scrivania/imsi.txt
chat_script=/home/giuseppe/Scrivania/omnitel.chat

exec 3<&1 >"$modem" <"$modem"
stty 115200 clocal ...etc...
if chat -v -s -f "${chat_script}"; then
    echo "error setup modem" >&2
    exit 1
fi
cat "$file"
echo "done" >&3


Last edited by neutronscott; 04-19-2012 at 09:17 PM.. Reason: fix chat script
 

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