reading data from a file to an array


 
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# 1  
Old 09-18-2012
Question reading data from a file to an array

I need some help with this code below, i doesnt know why it will run twice with my function, but my function only got if else, any other way that can read line and put into array?

Code:
while read line; do
    read -A array <<<$line
    n=${#array[@]}
    for ((i=1;i<$n;i++)); do
       print "${array[$i]}"
    done
    func=${array[0]}
    data1=${array[1]}
    data2=${array[2]}
    eval $func \$data1 \$data2 
done < $list

thanks
# 2  
Old 09-19-2012
Here is some array using example.
=> for you is enough:
Code:
whle read line
do
     array=($line)
     ...
done

Array examples:
Code:
#!/some/shell     (=ksh, bash, ...)
#arrays
mytable=(a1 b2 c3)
echo ${#mytable[*]}
echo ${mytable[*]}

# save cmdline args
myargs=("$@")
echo "0:${myargs[0]}"
echo "1:${myargs[1]}"

# from file
cat <<EOF > $0.tmp
123 456 444
222 444 555
EOF

values=( $(<$0.tmp) )
echo "file in"
echo "0:${values[0]}"
echo "1:${values[1]}"
# from file, delimiter ;
cat <<EOF > $0.tmp
123;456;444
222;444;555
EOF

echo "csv"
oifs="$IFS"
IFS=";"
values=( $(<$0.tmp) )
IFS="$oifs"
echo "0:${values[0]}"
echo "1:${values[1]}"

# cmd output
echo "time"
values=( $(date '+%H %M %S') )
echo "0h:${values[0]}"
echo "1m:${values[1]}"
echo "2s:${values[2]}"

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