Try

`sfdoc -k <keyword>`. For example,

bash$ sfdoc -k velocity

**sfexgr:** Exact group velocity in VTI media

**sfchebvc:** Post-stack 2-D velocity continuation by Chebyshev-tau method.

**sfagmig:** Angle-gather constant-velocity time migration.

**sffourvc2:** Velocity continuation with semblance computation.

**sfdix:** Convert RMS to interval velocity using LS and shaping regularization.

**sfconstfdmig2:** 2-D implicit finite-difference migration in constant velocity.

**sfpwdix:** Convert RMS to interval velocity using LS and plane-wave construction.

**sfdixshape:** Convert RMS to interval velocity using LS and shaping regularization.

**sfpveltran:** Slope-based velocity transform.

**sfvelcon:** Post-stack velocity continuation by implicit finite differences

**sfvscan:** Velocity analysis.

**sfvelmod:** Velocity transform.

**sfpreconstkirch:** Prestack Kirchhoff modeling/migration in constant velocity.

**sfunif2:** Generate 2-D layered velocity model from specified interfaces.

**sfunif3:** Generate 3-D layered velocity model from specified interfaces.

**sffourvc:** Velocity continuation.

**sfimospray:** Inversion of constant-velocity nearest-neighbor inverse NMO.

**sfvelcon3:** 3-D finite-difference velocity continuation on a helix

If some program description attracts your attention, run the program without arguments for a self-doc, then follow examples in the

**USED IN** section to observe how it was used. Alternatively, use the

web interface.

"

`sfdoc -k .`" produces a full list of all programs.