EXTRAJ(L) LOCAL COMMANDS EXTRAJ(L)
NAME
extraj - extract columns from the IHW HAL_0026 CDROM ICE
trajectory file
SYNOPSIS
extraj [ -h ] [ column [ ... ] ]
DESCRIPTION
extraj extracts columns from the "traj_ice.dat" trajectory
file, found in the "g_z/ice/ephemris" directory of the
International Halley Watch CDROM Volume HAL_0026, and
creates a table containing just those fields. The user
specifies which columns are to be selected and may option-
ally specify that the column labels be included in the out-
put listing.
Output is written to the standard output file as a table of
fixed-length records with CR/LF (\r\n) carriage control.
The columns listed in the command line are included in the
output table, in the specified order. If a column is listed
more than once on input, it will be included as many times
in the output table.
INPUT
The user may specify up to 200 columns for the output table
(there are only 114 fields in the trajectory file). Also, a
range of columns may be specified by using the form "AA-BB",
where AA is the first column, BB is the last, and there is
no whitespace imbedded in the expression.
The -h option, when present, indicates that the column
labels (listed in the first record of the trajectory file)
be included as column headings in the output table. The
headings, when included, are centered above each column.
The default action is not to include the column labels.
Sun Release 4.1 Last change: 08 December 1994 1
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