To run DVB-Salmon, simply type:
dvb-salmon filename
The file name parameter should be either a file containing a dvb transport stream or a device to which an ASI generator is writing.
During execution, there will be a menu at the bottom of the page, which will either look like:
S - Show SDT Table P - Show PID List M - Show PMT Data
or:
S - Show SDT Table P - Show PID List M - Show PMT Data < > Prev/Next Service
This shows the possible commands.
To quit dvb-salmon, type q at any time.