BASH: The variable shows only the last line

Question

The variable shows only the last line:

while read var1; do
    var2+="$var1"$"\n"
    if [[ $var2 == *andoi* ]]; then
        break
    fi
done < "./filename" #or other file
echo "Result:"
echo "$var2" #just read the last lines, I want all
#...edit $var2...etc...
echo "$var2" #modified

Simplified script:

while read var1; do
    var2+="$var1"$"\n"
done < "./filename" #or other file
echo "$var2" #just read the last lines, I want all
#...edit $var2...cdn...
echo "$var2" #modified

I used this http://gsteph.blogspot.com/2007/04/bash-reading-text-file.html

How do teeth variable shows all the lines in one variable?

//I corrected, it may be useful to someone.//

Answer 1

So you want to accumulate $var1 into $var2 ?

while read var1; do
  var2="$var2 $var1"
  # etc...
done < "./filename"

echo "$var2"

To accumulate them with a newline on each, do:

while read var1; do
  var2="$var2
$var1"
  # etc...
done < "./filename"

echo "$var2"

Answer 2

If you just want the contents of a file up to and including some keyword:

x=$(sed '/droid/ q')
x=$(awk '{print} /droid/ {exit}')