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4.4.4 Header data records: The -H option

The -H[i][n_recs] option lets GMT know that input file(s) have one [Default] or more header records. If there are more than one header record you must specify the number after the -H option, e.g., -H4. The default number of header records if -H is used is one of the many parameters in the .gmtdefaults4 file (N_HEADER_RECS), but can be overridden by -Hn_header_recs. Note that blank lines and records that be start with the character # are automatically skipped. Normally, programs that both read and write tables will output the header records that are found on input. Use -Hi to suppress the writing of header records.


next up previous contents index
Next: 4.4.5 Portrait plot orientation: Up: 4.4 Standardized command line Previous: 4.4.3.5 Cartesian time axes   Contents   Index
Paul Wessel 2004-10-01