Sed - add text to start of line if 1st char anything but space Post: 302391017

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LEARN ABOUT DEBIAN

grdcut

GRDCUT(l)																 GRDCUT(l)

NAME

       grdcut - Extract a subregion out of a .grd file

SYNOPSIS

       grdcut input_file.grd -Goutput_file.grd -Rwest/east/south/north[r] [ -V ]

DESCRIPTION

       grdcut	will   produce	 a  new  output_file.grd  file	which  is  a  subregion  of  input_file.grd.   The  subregion  is  specified  with
       -Rwest/east/south/north as in other programs; the specified range must not exceed the range of input_file.grd. If in doubt, run grdinfo	to
       check range. Complementary to grdcut there is grdpaste, which will join together two grdfiles along a common edge.

       input_file.grd
	      this is the input .grd format file.

       -Goutput_file.grd
	      this is the output .grd format file.

       -R     west,  east,  south,  and  north specify the Region of interest. To specify boundaries in degrees and minutes [and seconds], use the
	      dd:mm[:ss] format. Append r if lower left and upper right map coordinates are given instead of wesn.  This defines the subregion	to
	      be cut out.

OPTIONS

       -V     Selects verbose mode, which will send progress reports to stderr [Default runs "silently"].

EXAMPLES

       Suppose	you  have used surface to grid ship gravity in the region between 148E - 162E and 8N - 32N, and you do not trust the gridding near
       the edges, so you want to keep only the area between 150E - 160E and 10N - 30N, then:

       grdcut grav_148_162_8_32.grd -Ggrav_150_160_10_30.grd -R150/160/10/30 -V

SEE ALSO

       grdpaste(1gmt), grdinfo(1gmt), gmt(1gmt)

								    1 Jan 2004								 GRDCUT(l)

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