EOF
in the here document.cat << EOF
Hello World
cat << EOF
Hello World
EOF
The <<
here document (aka heredoc) was not
properly terminated. The terminating token needs to be on a separate
line without indenting (or indented with tabs only when using
<<-
).
Note that you can not put here documents in one liners. For such use
cases, use a <<<
here string:
cat << EOF hello world EOF # Wrong: data and terminator can not be on the same line
cat <<< "hello world" # Correct
None
ShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.