Нашёл в сети скрипт для кодирования/декодирования USSD запросов/ответов.
#!/bin/bash
# ussd.sh v1.0 (22.06.2013) by Shumaher
##########################
SCRIPTVER='ussd.sh v1.0 (22.06.2013) by Shumaher'
echo $SCRIPTVER
echo
echo
decodeUCS2() # UCS to text
{
bytes=$(echo -n $1 | sed "s/\(.\{2\}\)/\\\x\1/g")
REPLY=$(printf $bytes | iconv -f UCS-2BE -t UTF-8)
echo "$REPLY"
}
encodePDU() # text to PDU
{
in=$1
let "in_len=${#in}-1"
for chr in $(seq 0 $in_len)
do
let "chr2=$chr+1"
let "t=$chr%8+1"
if [ "$t" -ne 8 ]; then
byte=$(printf "%d" "'${in:$chr:1}")
let "c=$byte>>($chr%8)"
let "c2=(1<<$t)-1"
byte2=$(printf "%d" "'${in:$chr2:1}")
let "b=$byte2 & $c2"
let "c=$b<<(8-$t) | $c"
REPLY=$REPLY$(echo "obase=16; $c" | bc | sed "s/^\(.\{,1\}\)$/0\1/")
fi
done
echo "$REPLY"
echo
echo "AT-command to send '$1' as USSD-request: AT+CUSD=1,\"$REPLY\",15"
}
helpmsg()
{
echo "Type '`basename $0` *USSD*command#' to convert USSD-request to PDU"
echo "or '`basename $0` UCS2-message' to convert UCS2-encoded USSD-answer to UTF8."
echo
}
if [ $# -eq 0 ]
then
helpmsg
elif [ $# -eq 1 ] && echo -n $1 | grep -q '^[#|\*].*'
then
encodePDU "$1"
elif [ $# -gt 1 ]
then
echo "Invalid argument."
helpmsg
else
decodeUCS2 "$1"
fi
echo
Что-то не получается кодировать команду.
$ sh ussd.sh *102#
ussd.sh v1.0 (22.06.2013) by Shumaher
ussd.sh: 23: ussd.sh: let: not found
AT-command to send '*102#' as USSD-request: AT+CUSD=1,"",15
