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Full Discussion: Loop through only the distinct values in a file
Top Forums Shell Programming and Scripting Loop through only the distinct values in a file Post 302165059 by ag79 on Wednesday 6th of February 2008 04:47:13 PM
Old 02-06-2008
you have to be more specific here.. assuming this file is delimited by colons, u can get the distinct values by cut -f2 -d':' filename and pipe output to | sort | uniq

if u want it in loop the u can use
for i in `cut -f2 -d':' filenmae |sort|uniq`
do
ls -l $i #do something
done

its untested code so u may hv to tweak a little
 

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LEARN ABOUT DEBIAN

plmeshc

PLMESHC(3plplot)						    PLplot API							  PLMESHC(3plplot)

NAME

       plmeshc - Magnitude colored plot surface mesh with contour.

SYNOPSIS

       plmeshc(x, y, z, nx, ny, opt, clevel, nlevel)

DESCRIPTION

       Identical  to  plmesh  but  with extra functionalities: the surface mesh can be colored accordingly to the current z value being plotted, a
       contour plot can be drawn at the base XY plane, and a curtain can be drawn between the plotted function border and the base XY plane.

       Redacted form: plmeshc(x, y, z, opt, clevel)

       This function is used in example 11.

ARGUMENTS

       x (PLFLT *, input)
	      Pointer to set of x coordinate values at which the function is evaluated.

       y (PLFLT *, input)
	      Pointer to set of y coordinate values at which the function is evaluated.

       z (PLFLT **, input)
	      Pointer to a vectored two-dimensional array with set of function values.

       nx (PLINT, input)
	      Number of x values at which function is evaluated.

       ny (PLINT, input)
	      Number of y values at which function is evaluated.

       opt (PLINT, input)
	      Determines the way in which the surface is represented. To specify more than one option just add the  options,  e.g.  DRAW_LINEXY  +
	      MAG_COLOR  opt=DRAW_LINEX:  Lines  are  drawn  showing z as a function of x for each value of y[j].  opt=DRAW_LINEY: Lines are drawn
	      showing z as a function of y for each value of x[i].  opt=DRAW_LINEXY: Network of lines is drawn connecting points at which function
	      is defined.  opt=MAG_COLOR: Each line in the mesh is colored according to the z value being plotted. The color is used from the cur-
	      rent colormap 1.	opt=BASE_CONT: A contour plot is drawn at the base XY plane using parameters nlevel and  clevel.   opt=DRAW_SIDES:
	      draws a curtain between the base XY plane and the borders of the plotted function.

       clevel (PLFLT *, input)
	      Pointer to the array that defines the contour level spacing.

       nlevel (PLINT, input)
	      Number of elements in the clevel array.

AUTHORS

       Geoffrey  Furnish  and  Maurice LeBrun wrote and maintain PLplot.  This man page was automatically generated from the DocBook source of the
       PLplot documentation, maintained by Alan W. Irwin and Rafael Laboissiere.

SEE ALSO

       PLplot documentation at http://plplot.sourceforge.net/resources.

								   August, 2012 						  PLMESHC(3plplot)
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