Public bug reported:
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/sh.html#tag_20_117_06
says:
> The standard input shall be used only if one of the following is true:
> * The -s option is specified.
> * The -c option is not specified and no operands are specified.
> * The script executes one or more commands that require input from
> standard input (such as a read command that does not redirect
> its input).
However, if you run:
dash -i -c 'if'
then dash will drop to a prompt waiting for input from the
terminal/stdin (after printing an error message for the legitimate
syntax error. It should simply exit.
Another way to test this:
dash -i -c 'read foo'
and then hit Ctrl-C. It will drop to a prompt when it should exit.
** Affects: dash (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1196127
Title:
dash -i -c may prompt for input from stdin/terminal
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