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## A Commands By Category

This section lists the commands available broken down by the category of function they provide. Some commands appear in more than one category. Detailed descriptions and examples for each command can be found in Appendix B.

Format conversion:
  - `tcopy`: Converts between table formats
  - `votcopy`: Transforms between VOTable encodings
  See also Section 5.
Generic table manipulation:
  - `tcopy`: Converts between table formats
  - `tpipe`: Performs pipeline processing on a table
  - `tmulti`: Writes multiple tables to a single container file
  - `tmultin`: Writes multiple processed tables to single container file
  - `tcat`: Concatenates multiple similar tables
  - `tcatn`: Concatenates multiple tables
  - `tloop`: Generates a single-column table from a loop variable
  - `tjoin`: Joins multiple tables side-to-side
  - `arrayjoin`: Adds table-per-row data as array-valued columns
  - `tgridmap`: Calculates N-dimensional density maps
  - `tgroup`: Calculates aggregate functions on groups of rows
  - `tcube`: Calculates N-dimensional histograms
  See also Section 6.
Crossmatching:
  - `tmatch1`: Performs a crossmatch internal to a single table
  - `tmatch2`: Crossmatches 2 tables using flexible criteria
  - `tmatchn`: Crossmatches multiple tables using flexible criteria
  - `tskymatch2`: Crossmatches 2 tables on sky position
  - `cdsskymatch`: Crossmatches table on sky position against VizieR/SIMBAD table
  - `coneskymatch`: Crossmatches table on sky position against remote cone service
  - `sqlskymatch`: Crossmatches table on sky position against SQL table
  See also Section 7.
Plotting:
  - `plot2plane`: Draws a plane plot
  - `plot2sky`: Draws a sky plot
  - `plot2cube`: Draws a cube plot
  - `plot2sphere`: Draws a sphere plot
  - `plot2corner`: Draws a matrix of plane plots
  - `plot2time`: Draws a time plot
  - `plot2d` (deprecated): Old-style 2D Scatter Plot
  - `plot3d` (deprecated): Old-style 3D Scatter Plot
  - `plothist` (deprecated): Old-style Histogram
  See also Section 9.
Sky Pixel Operations:
  - `tskymap`: Calculates sky density maps
  - `mocshape`: Generates Multi-Order Coverage maps from shape values
  - `pixfoot`: Generates Multi-Order Coverage maps
  - `pixsample`: Samples from a HEALPix pixel data file
VOTables:
  - `votcopy`: Transforms between VOTable encodings
  - `votlint`: Validates VOTable documents
Virtual Observatory service access:
  - `cdsskymatch`: Crossmatches table on sky position against VizieR/SIMBAD table
  - `cone`: Executes a Cone Search-like query
  - `coneskymatch`: Crossmatches table on sky position against remote cone service
  - `tapskymatch`: Crossmatches table on sky position against TAP table
  - `tapquery`: Queries a Table Access Protocol server
  - `tapresume`: Resumes a previous query to a Table Access Protocol server
  - `taplint`: Tests TAP services
  - `datalinklint`: Validates DataLink documents
  - `regquery`: Queries the VO registry
SQL Database access:
  - `sqlclient`: Executes SQL statements
  - `sqlupdate`: Updates values in an SQL table
  - `sqlskymatch`: Crossmatches table on sky position against SQL table
Miscellaneous:
  - `server`: Runs an HTTP server to perform STILTS commands
  - `calc`: Evaluates expressions
  - `doc`: Displays STILTS documentation in a web browser
  - `funcs`: Browses functions used by algebraic expression language
  - `parqlint`: Checks parquet file compliance with VOParquet convention
  - `parqlook`: Presents information about a parquet file
  - `xsdvalidate`: Validates against XML Schema

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STILTS - Starlink Tables Infrastructure Library Tool Set
Starlink User Note256
STILTS web page: http://www.starlink.ac.uk/stilts/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk