While read line cannot read the last row

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Just used, thank you very much, stay here for backup;

While reading line reads a file, if the last line of the file does not have a newline character \ n, then read reads the last line with the file Terminator eof, and the loop terminates, although there is a last line in $line, but the program has no chance to process this line again. Therefore, the following code can be used to resolve this problem:

123	whilereadline || [[ -n ${line} ]]; do...done

This will not test the-n $line when the file is not finished, and will still be able to continue processing by testing whether the $line has content when it encounters the end of the file.

While read line cannot read the last row