Accelerator beam commissioning is a challenging and exciting period. It is
generally the first integrated operation of the many systems in an accelerator
and, most importantly, of the beam. First, general preparation is discussed.
Then general methods for initial beam commissioning are described, including
methods for transverse and longitudinal beam set-up. The particular emphasis
here is on tuning methods for linear accelerators.Comment: 16 pages, contribution to the CAS - CERN Accelerator School: Course
on High Power Hadron Machines; 24 May - 2 Jun 2011, Bilbao, Spai