# Installation Instructions

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## AMPL Installation Wizard

Here are instructions to install AMPL-Gurobi on Linux:

1. Extract the contents of the supplied AMPL-Gurobi file. Extraction is done with the following command:
tar xvfz amplgurobi9.0.0_linux64.tar.gz

The file name should be adjusted to reflect the actual archive file. Extraction will produce a subdirectory called ampl, which contains the AMPL-Gurobi software.
2. Choose a destination directory. We recommend /usr/local/bin, but other directories will work as well. Copy the extracted files inside the ampl subdirectory to the destination directory.
3. To allow the AMPL-Gurobi executable files to be found when needed, ensure that the PATH environment variable includes the AMPL installation directory. Assuming that AMPL is installed in /usr/local/bin, users of the bash shell would add the following to their .bashrc files:
export PATH="${PATH}:/usr/local/bin" export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/usr/local/bin"

And users of the csh shell would add the following to their .cshrc files:
setenv PATH ${PATH}:/usr/local/bin setenv LD_LIBRARY_PATH${LD_LIBRARY_PATH}:/usr/local/bin

If LD_LIBRARY_PATH is not already set, you would use the following instead:
export LD_LIBRARY_PATH="/usr/local/bin"

or
setenv LD_LIBRARY_PATH /usr/local/bin

Note that you do not need to update LD_LIBRARY_PATH if you previously installed the standalone Gurobi Optimizer and set LD_LIBRARY_PATH during that process.
4. You will need a license key for AMPL - even if you already have a license key for the standalone Gurobi Optimizer. To get system information needed for a license key, open a terminal prompt and type the command:
fingerprint -o fp.out

This will generate a fingerprint file named fp.out. To request your license key (after we have received your payment or a Gurobi sales representative has approved your request to evaluate AMPL), email the fp.out file to key@gurobi.com.
5. When you receive your license key, simply copy the license key file to the installation directory or any other directory in your PATH.
6. If you are configuring a floating license server for AMPL-Gurobi, please follow the additional instructions for ampl_lic.