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hdiff(1) hdiff(1)

NAME

hdiff - compares two HDF files and reports the differences

SYNOPSIS


hdiff
[ -V] [-b] [-g] [-s] [-d] [-D] [-S] [ -v var1[,...]] [-u var1[,...]] [-e count] [-t limit] [-p relative] file1 file2

DESCRIPTION

hdiff compares two HDF files and reports the differences.

OPTIONS

-V
Display version of the HDF4 library and exit
-b
Verbose mode
-g
Compare global attributes only
-s
Compare SD local attributes only
-d
Compare SD data only
-D
Compare Vdata data only
-S
Print statistics
-v var1[,...]
Compare SD data on variable(s) var1,... only
-u var1[,...]
Compare vdata on variable(s) var1,... only
-e count
Print difference up to count number for each variable
-t limit
Print difference when it is greater than limit
-p relative
Print difference when it is greater than a relative limit
file1
File name of the first HDF file
file2
File name of the second HDF file
The ' count' value must be a positive integer
The ' limit' and ' relative' values must be positive numbers
The -t compare criteria is |a - b| > limit
The -p compare criteria is |(b-a)/a| > relative
Return codes: 0 (no differences found), 1 (differences found)
28 May 2016