xcsao - Find redshifts by cross-correlating spectra with templates
         emsao - Find redshifts by measuring emission line shifts
       bcvcorr - Compute radial velocity correction to solar system barycenter
      contpars - Set parameters for continuum removal
      linespec - Make a spectrum from a list of emission and/or absorption lines
       sumspec - Combine multiple spectra into an assigned-velocity spectrum
       contsum - Set continuum removal parameters for template making
         qplot - Check results of previously-run xcsao and emsao
       relearn - Set parameter values in parameter file of new version
                 of a task using the values in the current parameter file
        velset - Set velocity by modifying starting wavelength
          zvel - Run emsao and xcsao on list of spectra