53 lines
1.6 KiB
Bash
53 lines
1.6 KiB
Bash
#!/bin/bash
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# Information about HUAWEI modem - via AT commands
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# ------------------------------------------------
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# get info about the device and signal
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# parameter: $1 - see opts list below
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# $2 - tty device name for the communicaton (optional)
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# returns the value of the parameter, or "none" if not found or empty
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#
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# requires: socat
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#
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# zbchristian 2020
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opts=("manufacturer" "device" "imei" "imsi" "telnumber" "mode" "signal" "operator")
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# at command to extract information
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atcmds=("AT+CGMI" "AT+CGMM" "AT+CGSN" "AT+CIMI" "AT+CNUM" "AT+COPS?" "AT+CSQ" "AT+COPS?")
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# regexp pattern to extract wanted information from result string
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pats=( " " " " " " " " ".*\,\"([0-9\+]*)\".*" '.*\,([0-9])$' ".*: ([0-9]*).*" '.*\,\"([^ ]*)\".*$')
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# tty device for communication - usually 3 tty devices are created and the 3rd ttyUSB2 is available, even, when the device is connected
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dev="/dev/ttyUSB2"
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atsilent="AT^CURC=0"
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if [ ! -z $2 ]; then dev=$2; fi
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idx=-1
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opt=${opts[0]}
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if [ ! -z $1 ]; then opt=$1; fi
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for i in "${!opts[@]}"; do
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if [[ ${opts[$i]} == $opt ]]; then idx=$i; fi
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done
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if [[ $idx == -1 ]];then echo "none"; exit; fi
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atcmd=${atcmds[$idx]}
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pat=${pats[$idx]}
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result=`(echo $atsilent; echo $atcmd) | sudo /usr/bin/socat - $dev`
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# escape the AT command to be used in the regexp
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atesc=${atcmd//[\+]/\\+}
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atesc=${atesc//[\?]/\\?}
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result=`echo $result | sed -rn 's/.*'"$atesc"'\s([^ ]+|[^ ]+ [^ ]+)\sOK.*$/\1/pg'`
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if [[ $pat != " " ]]; then
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result=`echo $result | sed -rn 's/'"$pat"'/\1/pg'`
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fi
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if [ -z "$result" ]; then result="none"; fi
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echo $result
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