How to perform a calculation and how to get started

Create an input file, e.g. problem.dat. The default input file is tochnog.dat, which will be used if no other input file is specified. Thus the command tochnog or tochnog tochnog.dat yields output on the screen while tochnog tochnog.dat $>$ tochnog.out redirects the output to a file. On a Unix system you can run the job in the background with tochnog tochnog.dat $>$ tochnog.out &. On a Microsoft windows system you need to run from a DOS shell.

Use the condif1.dat test to get started.

• Copy condif1.dat to tochnog.dat.
• Use your favorite editor to open the file tochnog.dat and study it.
• Change echo to -yes.
• Remove the parentheses (...) surrounding the control_print statement and save the file.
• Run by typing tochnog or tochnog tochnog or tochnog tochnog.dat.
• Study the output on the screen.
• Study the tochnog.log file.
• Study the tochnog.dbs file. It contains the database after the calculation, and is an input file itself!

Read at least once the start of the data part introduction section.