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Automating an interactive process with EOF string

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# 1  
Old 02-08-2018
Ubuntu Automating an interactive process with EOF string
Hello,

I'm running Stockfish chess engine ( Home - Stockfish - Open Source Chess Engine ) CLI on Linux in interactive mode which is working fine.

Code:
root@ubuntu1950x:~# ./stockfish
Stockfish 080218 64 POPCNT by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
setoption name Debug Log File value /tmp/st_log
position fen r2r4/p4ppk/P5np/1p2pQ2/8/2P2P1P/4q1P1/R2R2BK w - - 0 36
setoption name Threads value 1
setoption name Hash value 128
setoption name multiPV value 2
go movetime 4000
info depth 1 seldepth 1 multipv 1 score cp 114 nodes 162 nps 81000 tbhits 0 time 2 pv d1d8 a8d8 g1a7
info depth 1 seldepth 1 multipv 2 score cp 97 nodes 162 nps 81000 tbhits 0 time 2 pv d1e1
...
...
info depth 23 seldepth 39 multipv 1 score cp 26 nodes 9052891 nps 2261526 hashfull 466 tbhits 0 time 4003 pv f5e4 d8d1 a1d1 e2d1 e4a8 d1f1 a8a7 b5b4 c3b4 g6f4 a7f2 f1a6 f2c2 h7g8 g1e3 a6f1 h1h2 g7g5 e3f4 e5f4 c2e4 f1f2 b4b5 g8g7 e4b4 f2b6 b4a4 f7f6 a4a6 b6f2 a6b7 g7g6 b5b6
info depth 22 seldepth 32 multipv 2 score cp 0 nodes 9052891 nps 2261526 hashfull 466 tbhits 0 time 4003 pv d1e1 e2b2 f5f7 d8d2 a1b1 b2c2 f7b7 a8f8 e1c1 c2a2 b1a1 a2b2 c1b1 b2c2 b1c1 c2b2
bestmove f5e4 ponder d8d1
^C
root@ubuntu1950x:~#

When the above is run, it displays so many lines but I included only first 2 and last 2 lines (to improve readability of the post). I mentioned whatever I type in "RED" letters so you are aware what we type and what to expect. The above process runs for 4 seconds (as I mentioned movetime as 4000 milliseconds) and in the end it gives bestmove.

In order to automate the above process (I will later keep all the required inputs as command-line parameters if this below shell script works fine) I've written below shell script:

Code:
root@ubuntu1950x:~# cat test.sh
#!/bin/bash
/root/stockfish <<EOF
setoption name Debug Log File value /tmp/st_log
position fen r2r4/p4ppk/P5np/1p2pQ2/8/2P2P1P/4q1P1/R2R2BK w - - 0 36
setoption name Threads value 1
setoption name Hash value 128
setoption name multiPV value 2
go movetime 4000
EOF

root@ubuntu1950x:~#

But it exits immediately as opposed to be run for 4 seconds (though shows bestmove which is NOT correct).

Code:
root@ubuntu1950x:~# date; ./test.sh ; date
Thu  8 Feb 22:40:51 GMT 2018
Stockfish 080218 64 POPCNT by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
bestmove g2g3
Thu  8 Feb 22:40:51 GMT 2018
root@ubuntu1950x:~#

I also tried a blank line before and after EOF string in my script and also with no blank lines but none of them helped. I'm totally puzzled on how to fix this Smilie

I assure you that this engine is the best and most reliable chess engine (available under GPL license) and is 100% safe to run on any computer. In order to reproduce this issue, please download the binaries from Stockfish Development Versions (linux version runs only on Ubuntu type OS's not RHEL/CentOS type). You can also compile your own version by getting source from github ( GitHub - official-stockfish/Stockfish: UCI chess engine )

My Server OS config:
Code:
root@ubuntu1950x:~# uname -a
Linux ubuntu1950x 4.13.0-16-generic #19-Ubuntu SMP Wed Oct 11 18:35:14 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
root@ubuntu1950x:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 17.10
Release:        17.10
Codename:       artful
root@ubuntu1950x:~# bash --version
GNU bash, version 4.4.12(1)-release (x86_64-pc-linux-gnu)
Copyright © 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
root@ubuntu1950x:~#

Appreciate any help, thanks!
# 2  
Old 02-08-2018
Perhaps stockfish is closing as it's input pipe has closed.

Try something like this:

Code:
#!/bin/bash
(cat <<EOF
setoption name Debug Log File value /tmp/st_log
position fen r2r4/p4ppk/P5np/1p2pQ2/8/2P2P1P/4q1P1/R2R2BK w - - 0 36
setoption name Threads value 1
setoption name Hash value 128
setoption name multiPV value 2
go movetime 4000
EOF
sleep 4.1 ) | /root/stockfish

This User Gave Thanks to Chubler_XL For This Post:
prvnrk
# 3  
Old 02-08-2018
Many thanks Chubler_XL Smilie It worked like a charm Smilie

I've been trying to solve it for many days and you solved it in no time, I'm speechless SmilieSmilie
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