emsao - Find redshifts by measuring emission line shifts
        pemsao - Fit an emission line in a spectrum and save results as parameters
         xcsao - Find redshifts by cross-correlating spectra with templates
        pxcsao - Cross-correlate spectra with templates and save results as parameters
       eqwidth - Compute equivalent widths for specified lines in spectra
      contpars - Set parameters for continuum removal
       sumspec - Combine multiple spectra into an assigned-velocity spectrum
       contsum - Set continuum removal parameters for template making
      linespec - Make a spectrum from a list of emission and/or absorption lines
      listspec - Print an ASCII list of a spectrum with  optional per pixel info

       bcvcorr - Compute radial velocity correction to solar system barycenter
        emplot - Plot a spectrum with emission velocity and labelled lines
        pix2wl - Compute the wavelength for a specific pixel in a spectrum
         qplot - Check results of previously-run xcsao and emsao
        qplotc - Check results of previously-run xcsao and emsao (-continuum and bad lines)
       relearn - Set parameter values in parameter file of new version
                 of a task using the values in the current parameter file
        setvel - Shift a single spectrum to a several radial velocities
       skyplot - Plot a night sky spectrum with labelled emission lines
        velset - Set velocity by modifying starting wavelength
        wl2pix - Compute the pixel for a specific wavelength in a spectrum
       wlrange - Find the overlapping wavelength range in a list of spectra
        xcplot - Plot a spectrum with xc velocity and labelled lines
          zvel - Run emsao and xcsao on list of spectra