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Top Forums UNIX for Dummies Questions & Answers Multiplication of two matrices Post 302967266 by Don Cragun on Monday 22nd of February 2016 03:39:33 AM
Old 02-22-2016
I'm having trouble understanding your example.

In File1 we are using data from columns with headings:
Code:
ID2 M11_A M12_A

and multiplying values in those columns with data from rows with the data in the 1st two columns containing the data:
Code:
M11 A
M12 B

and producing output with the headings:
Code:
ID2 M1_A M2_A

Why are all three of these sets of names different? I can understand if you're saying we should completely ignore the 1st two columns in File2, but I'm not sure that I understand the transformation that you want to happen when moving headings from File1 to your output file. Is it just that 2nd character of each of the headings (except ID2) copied from File1 are to be deleted when printing the headings in the output file? Why are the headings for the fields used in File1 copied to the output file unchanged (like RudiC did in his suggestion)?
 

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GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME
grub-render-label - generate a .disk_label for Apple Macs. SYNOPSIS
grub-render-label [OPTION...] [OPTIONS] DESCRIPTION
Render Apple .disk_label. -b, --bgcolor=COLOR use COLOR for background -c, --color=COLOR use COLOR for text -f, --font=FILE use FILE as font (PF2). -i, --input=FILE read text from FILE. -o, --output=FILE set output filename. Default is STDOUT -t, --text=STRING set the label to render -v, --verbose print verbose messages. -?, --help give this help list --usage give a short usage message -V, --version print program version Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. REPORTING BUGS
Report bugs to <bug-grub@gnu.org>. SEE ALSO
The full documentation for grub-render-label is maintained as a Texinfo manual. If the info and grub-render-label programs are properly installed at your site, the command info grub-render-label should give you access to the complete manual. grub-render-label (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-RENDER-LABEL(1)
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