I want to do something like this:
$ NAME=John $ cat << '==end' > test My name is $NAME ==end $ cat test My name is John
Super User is a question and answer site for computer enthusiasts and power users. It only takes a minute to sign up.Sign up to join this community
cat <<EOF > test My name is $NAME EOF
cat <<==end > test My name is $NAME ==end
Worked for me.
Looks like when you take
==end in the
' variable doesn't substitute.
ah, here it is in the man page (look 3.6.6):
The format of here-documents is:
<<[-]word here-document delimiter
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. If word is unquoted, all lines of the here-document are subjected to parameter expansion, command substitution, and arithmetic expansion. [...]