Shell Programming and Scripting

val="10" 
port="localhost:8080"
httpadd="http:\\192.168.0.239"

val=${val}
port=${port}
httpadd=${httpadd}
fileloc=${fileloc}

val="10"
port="localhost:8080"
httpadd="http:\\192.168.0.239"
fileloc=${fileloc}

#!/bin/bash
cat file1 | while read line; do
    x=`echo $line | awk '{print $1}'`;y=`echo $line | awk '{print $3}'`;
    echo $x,$y;
    sed -e 's/\$.*'"$x"\.*'/'"$y"'/g' file2 > file2
done

$> cat f1; tail -1 f2 > f3
$> cat f3
val="10"
port="localhost:8080"
httpadd="http:\\192.168.0.239"
fileloc=${fileloc}

some text here
val=${val}
some here
port=${port}
some text here 
httpadd=${httpadd}
some text here
fileloc=${fileloc}

$> cat f1
val="10"
port="localhost:8080"
httpadd="http:\\192.168.0.239"
$> cat f2
some text here
val=${val}
some here
port=${port}
some text here
httpadd=${httpadd}
some text here
fileloc=${fileloc}
$> awk -F= 'NR==FNR {_[$1]=$2; next} _[$1] {print $1,_[$1]; next}1' OFS="=" f1 f2
some text here
val="10"
some here
port="localhost:8080"
some text here
httpadd="http:\\192.168.0.239"
some text here
fileloc=${fileloc}