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.TH "MGD77PATH" "1gmt" "May 21, 2019" "5.4.5" "GMT"
.SH NAME
mgd77path \- Return paths to MGD77 cruises and directories
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.SH SYNOPSIS
.sp
\fBmgd77path\fP \fINGDC\-ids\fP [  \fB\-A\fP[\fB\-\fP] ] [  \fB\-D\fP ]
[  \fB\-I\fP\fIignore\fP ]
[  \fB\-V\fP[\fIlevel\fP] ]
.sp
\fBNote:\fP No space is allowed between the option flag and the associated arguments.
.SH DESCRIPTION
.sp
\fBmgd77path\fP returns the full pathname to one or more MGD77 files. The
pathname returned for a given cruise may change with time due to
reshuffling of disks/subdirectories.
.SH REQUIRED ARGUMENTS
.INDENT 0.0
.TP
.B \fINGDC\-ids\fP
Can be one or more of five kinds of specifiers:
.INDENT 7.0
.IP 1. 3
8\-character NGDC IDs, e.g., 01010083, JA010010etc., etc.
.IP 2. 3
2\-character \fIagency\fP codes which will return all cruises from each agency.
.IP 3. 3
4\-character <agency><vessel> codes, which will return all cruises from those vessels.
.IP 4. 3
=\fIlist\fP, where \fIlist\fP is a table with NGDC IDs, one per line.
.IP 5. 3
If nothing is specified we return all cruises in the data base.
.UNINDENT
.sp
(See mgd77info \fB\-L\fP for agency and vessel codes). If no file
extension is given then we search for files with one of the four
known extensions.  The search order (and the extensions) tried
is MGD77+ (".nc"), MGD77T (".m77t"), MGD77 (".mgd77" ) and plain
text file (".dat").  Use \fB\-I\fP to ignore one or more of these
file types). Cruise files will be looked
for first in the current directory and second in all directories
listed in \fB$MGD77_HOME\fP/mgd77_paths.txt [If \fB$MGD77_HOME\fP is
not set it will default to \fB$GMT_SHAREDIR\fP/mgd77].
.UNINDENT
.SH OPTIONAL ARGUMENTS
.INDENT 0.0
.TP
\fB\-A\fP[\fB\-\fP]
Display the full path to each cruise [Default]. Optionally, append
\fB\-\fP which will list just the cruise IDs instead.
.UNINDENT
.INDENT 0.0
.TP
\fB\-D\fP
Instead of cruise listings, just show the directory paths currently
used in the search.
.UNINDENT
.INDENT 0.0
.TP
\fB\-I\fP\fIignore\fP
Ignore certain data file formats from consideration. Append
\fBa|c|m|t\fP to ignore MGD77 ASCII, MGD77+ netCDF, MGD77T ASCII, or plain
tab\-separated ASCII table files, respectively. The option may be
repeated to ignore more than one format. [Default ignores none].
.UNINDENT
.INDENT 0.0
.TP
\fB\-V\fP[\fIlevel\fP] (more ...)
Select verbosity level [c]. Reports the total number of cruises found.
.UNINDENT
.INDENT 0.0
.TP
\fB\-^\fP or just \fB\-\fP
Print a short message about the syntax of the command, then exits (NOTE: on Windows just use \fB\-\fP).
.TP
\fB\-+\fP or just \fB+\fP
Print an extensive usage (help) message, including the explanation of
any module\-specific option (but not the GMT common options), then exits.
.TP
\fB\-?\fP or no arguments
Print a complete usage (help) message, including the explanation of all options, then exits.
.UNINDENT
.SH EXAMPLES
.sp
To obtain pathnames for cruises 01010008 and 01010007, run
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
gmt mgd77path 01010008 01010007
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
To obtain pathnames for cruises 01010008 and 01010007, but only if there
are MGD77+ version in netCDF, run
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
gmt mgd77path 01010008 01010007 \-Ia \-It
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
To see the list of active directories where MGD77 files might be stored, run
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
gmt mgd77path \-D
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.SH SEE ALSO
.sp
gmt mgd77info
mgd77list
mgd77manage
mgd77track
.SH REFERENCES
.sp
The Marine Geophysical Data Exchange Format \- MGD77, see
\fI\%*http://www.ngdc.noaa.gov/mgg/dat/geodas/docs/mgd77.txt*.\fP
.SH COPYRIGHT
2019, P. Wessel, W. H. F. Smith, R. Scharroo, J. Luis, and F. Wobbe
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