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Full Discussion: Redirecting several outputs to /dev/stdout
Top Forums UNIX for Dummies Questions & Answers Redirecting several outputs to /dev/stdout Post 302295176 by aplaydoc on Friday 6th of March 2009 08:27:05 PM
Old 03-06-2009
Redirecting several outputs to /dev/stdout
I have an executable that, depending on its input, outputs to either one file or several. It usually prints nothing on screen. The usual way to call this program is to specify an input and output filenames, like this:

Code:
./executable.exe -i inputfile -o outputfile

It will then try to use the output filename exactly if it needs to output to one file, or it will start appending -01, -02, -03, -04 etc... to the name and create as many outputs as needed otherwise. (These are not a combination of output and error files, they are all output files only)


I want to force output everything from it on screen. If I change my code to:

Code:
./executable.exe -i inputfile -o /dev/stdout

then it will only work if the program wants to create one output file. But I get the error

Code:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::insert
Abort

in case it wants to output to several files. Is there another trick to force all outputs from it to print on screen??

Thanks
 

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grub-render-label

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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