These instructions are for users who want to get the ESP control software (simulator too) up and running on their local machine. These were written for both CentOS.

Prerequisites

1. Clean install of CentOS 6.6 (this has gcc 4.4 by default)

Steps to build and run

1. I first logged in as kgomes
2. Then opened a terminal window
3. I changed to root using

   su

4. I then created the log directory by doing

   cd /var/log
   mkdir kgomes
   chown kgomes:kgomes kgomes

5. I made sure git was installed. It was not so I installed it using

   yum install git

6. I also had to install autoconf using

   yum install autoconf

7. And I had to install yacc using

   yum install byacc

8. Then I changed to the root home directory using

   cd

9. I created a directory I could work in using

   mkdir esp

10. Changed into that directory using

    cd esp

11. I needed to build the MBARI version of Ruby, so I checked it out from Brent's repo using

    git clone https://github.com/brentr/matzruby.git

12. That created a matzruby directory which I then changed into using

    cd matzruby

13. Not sure why, but running ./espconfig did not work due to some path problems so to fix this, I edited the espconfig file and adding './' in front of 'configure' in two places
14. Then I was able to run espconfig this way

    ./espconfig

15. Once that completed, I ran

    ./espinstall

    which installed the ruby executable in /opt/mbari/bin

16. I then exited out of the root shell

    exit

    which put me back in my kgomes account

17. I created a working directory by using

    mkdir esp

18. Changed into it using

    cd esp

19. I tried to clone the repository, but kept getting a 403 (unauthorized) error which I am sure had something to do with my git configuration as it would not ask for my username and password event though this is a private rep. To get around this, I just opened a browser, logged into to github and downloaded the zip file which I put in the esp directory. NOTE: I did verify this works with the Git clone as well. I had to create an SSH key and add that up on GitHub from the CentOS machine, then the git clone worked fine.
20. Now, in order to setup the ESP environment so it can run on my machine, I edited my .bashrc file and add the following:

    export ESPhome=/home/kgomes/esp/ESP2Gscript-master
    export ESPname=gordon
    export ESPmode=simreal
    export ESPpath=.:$ESPhome/mission:$ESPhome/protocol
    export ESPconfigPath=$ESPhome/shallow:$ESPhome/shallow/$ESPname
    export PATH=$PATH:$ESPhome/bin:/opt/mbari/bin
    export RUBYLIB="${RUBYLIB:+$RUBYLIB:}$ESPhome/lib:$ESPhome/utils:$ESPhome/protocol"

21. You should then source the .bashrc (or other) file to setup the environment
22. Once this was done, I was successfully able to run

    esp

    to get the ESP server running