Question

I have a file configure.sh with following (it creates a test.sh file with configuration, so that i can use that test.sh finally as main configuration task). But it does not work

cat > /var/tmp/test.sh << EOF
regex='value=(.*)'
for i in $(cat /var/tmp/test.ini);
do
    if [[ $i =~ $regex ]];
    then
        echo ${BASH_REMATCH[1]} 
        #or
        curl -v ${BASH_REMATCH[1]}
    fi
done
EOF

When the configure.sh is executed it makes the test.sh file completely wrong such as
reged=’value(.*)’

for i in 
original line1
original line1
original line1
original line1
do
  if [[ =~ ]];
  then 
  fi

done
EOF

The EOF block is not writing exactly how i set above. How do you write such string inside EOF?

Answer 1

From man bash, section Here Documents:

No parameter expansion, command substitution, arithmetic
expansion, or pathname expansion is performed on word. If any characters in word are
quoted, the delimiter is the result of quote
removal on word, and the lines in the here-document are not expanded.

So write << \EOF instead of << EOF.