This is a set of text interfaces for RNAstructure. The shared libraries (.so or .dynlib) are required for function. So are the thermodynamic parameters in the data_tables/ directory. For proper function, set an environment variable called DATAPATH to indicate the location of data_tables. For example, in BASH: export DATAPATH=/home/dhm/RNAstructure/data_tables. Note the format of input sequences to RNAstructure. There are examples in the examples/ directory. Also, FASTA formatted sequences are additionally allowed for the text interfaces. A sample FASTA format sequence is also in the examples/ directory. Most programs provide brief usage information if invoked with no input and extensive help if invoked with a -h parameter. Please report any bug to David Mathews: David_Mathews@urmc.rochester.edu.