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Re: bash command substitution




On Sun, 1 Oct 2017 08:40:51, Vukovics Mihaly wrote:
VHEIGHT=$(ffprobe -v error -show_entries stream=width,height -of default=noprint_wrappers=1 ${OLDFILE} | grep "height" | cut -f2 -d'=')

For debugging purpose the same command is executed without putting the result into a variable, and works! Does anyone know why is it not working in cygwin?

I am not having this trouble:

   $ VHEIGHT=$(ffprobe -v 0 -of compact=p=0:nk=1 -select_streams 0 \
   -show_entries stream=height 'The Master (2012).mp4')

   $ echo "$VHEIGHT"
   1040

but as Marco said, you might need to sanitize for carriage returns:

   $ echo "$VHEIGHT" | od -tcx1
   0000000   1   0   4   0  \r  \n
            31  30  34  30  0d  0a


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