sudo -S

[Anonymous_Banned275]

   -S, --stdin
               Write the prompt to the standard error and read the
               password from the standard input instead of using the
               terminal device.

How to write the above (c++) including "standard input"?

Can I use (read from) lineEdit as "standard input" ?
I am trying to bypass user need to input password..

[kshegunov]

@AnneRanch said in sudo -S:

How to write the above (c++) including "standard input"?

I don't follow.
Also quotations are not used, these are very real objects, not just terms:
https://en.wikipedia.org/wiki/Standard_streams

Can I use (read from) lineEdit as "standard input" ?

No. You can read/write the standard input/output with Qt by attaching to the corresponding C++ handle (set up by the runtime).

QTextStream in(stdin);     //< Standard input
QTextStream out(stdout);   //< Standard output
QTextStream err(stderr);   //< Standard error

[Axel Spoerl]

I don’t know, Anne, how often we have told you: Don’t spam this forum by asking th same question multiple times, while ignoring helpful answers in other posts. You were told here, to use /etc/sudoers to prevent the password interaction. If you choose to ignore advice, that’s fine. Just don’t ask the same question again.