On Wed, Nov 17, 2021, at 7:35 AM, João Almeida Santos wrote:
> I’m a programming student currently on 42 School in Lisbon, and one of
> our projects is to create a minishell, and to mimic the behavior of
> bash.
Nice!
> While testing the heredoc mode, I realized that the $ is not
> interpreted as variable expansion. That’s interesting.
Are you talking about your project or bash? In the latter (and
related shells), expansion is only suppressed in a here-document
if, when the delimiter is specified, it is at least partially quoted.
$ cat <<EOF
+ this is bash $BASH_VERSION
+ EOF
this is bash 5.1.8(1)-release
$ cat <<\EOF
+ this is bash $BASH_VERSION
+ EOF
this is bash $BASH_VERSION
> But the reason why I’m emailing you is that I whenever I tried to use
> an unclosed quote on heredoc, it doesn’t seem to handle well…it never
> finishes the heredoc.
> I tried \n for paragraph, verbatim inserting enter, closing quotes on
> the next line, …don’t know what else to test.
This description is a bit hard to follow. Could you provide a small
bit of code that demonstrates the issue?
--
vq
