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average

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average -V (return code: 1)

Argyll 'V1.8.3' Build 'Linux 64 bit' System 'Linux #36~16.04.1-Ubuntu SMP Sun Feb 5 09:39:57 UTC 2017 4.8.0-36-generic x86_64'
average: Error - Must be at least one input and one output file specified

average -HELP (return code: 1)

Average or merge values in .ti3 like files, Version 1.8.3
  Diagnostic: Unknown flag '-'
Author: Graeme W. Gill, licensed under the AGPL Version 3
usage: average [-options] input1.ti3 input2.ti3 ... output.ti3
 -v              Verbose
 -m              Merge rather than average
 input1.ti3      First input file
 input2.ti3      Second input file
 ...             etc.
 output.ti3      Resulting averaged or merged output file

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