dotfiles/.vim/bash-support/codesnippets/use-file-descriptor-read

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infilename="" # input filename
exec 3<"$infilename"
if [ $? -ne 0 ] ; then
echo -e "Could not link file descriptor with file '$infilename'\n"
exit 1
fi
while read line <&3 ; do
echo -e "$line"
done
exec 3<&- # close file descriptor