In article <20130624135817.10QZO.129278.root at cdptpa-web19-z02>, Steve <zephod at cfl.rr.com> wrote: > Suppose I have this C++ program: > #include <iostream> > int main (int argc, char** argv) > { > while (1) > { > char cmd[80]; > std::cin.getline(cmd, 80); > std::cout << "response to " << cmd << std::endl; > } > } > > compiled by: c++ -o junk junk.cpp > > and I have this bash script: > #!/bin/bash > ./junk <<EOF > blah > bleh > \cC > EOF > echo "Something else" > > When I run the script, the program starts and waits for input forever. > I have 2 questions: > 1) The "blah" and "bleh" line are not echoed to cout. Why not? Does the here document not send the data to stdin? > 2) How do I terminate the program? When run interactively, I use <ctrl>-C. You should be testing the return value from std::cin.getline() for end-of-file. You are not testing it for any error. Always test return values. In your script, the end of the here document will cause your program to see end-of-file (this is NOT the string "EOF" - that's just the way you denote the end of the here doc). And you really ought to find a forum or mailing list where this kind of question is ON-topic. Flagging the subject OT isn't a magic permission to post anything you like! Cheers Tony -- Tony Mountifield Work: tony at softins.co.uk - http://www.softins.co.uk Play: tony at mountifield.org - http://tony.mountifield.org