Missing Newline Character

Missing newline character?

You can use this sed to add a newline after last line:

sed -i.bak $'$s/$/\\n/' file_copy

EDIT:

Or else use (thanks to @JonathanLeffler):

echo '' >> file_copy

What's the significance of the No newline at end of file log?

It indicates that you do not have a newline (usually \n, aka LF or CRLF) at the end of file.

That is, simply speaking, the last byte (or bytes if you're on Windows) in the file is not a newline.

The message is displayed because otherwise there is no way to tell the difference between a file where there is a newline at the end and one where is not. Diff has to output a newline anyway, or the result would be harder to read or process automatically.

Note that it is a good style to always put the newline as a last character, in text files, if it is allowed by the file format. Furthermore, for example, for C and C++ header files it is required by the language standard.

Output is missing a trailing new line character

You have a lot of unnecessary lines of code:

word = "\n".join(word)
wordx = word.split("\n")

This is not necessary. You insert newlines between the characters, just to split them again by new-line to a list. These two lines are equivalent to list(word). But this conversion is not necessary as well because input() returns a string which is iterable. Iterating over a string iterates over its characters.

for c in wordx:
  if c in wordx:
    ...

It is not necessary to check if c in wordx. It obviously is because you are iterating over wordx...

A simplified version of your code would be:

word = input("Enter word: ")

for c in word:
    print(KEYPAD[c], end="")
print()

Which can also be simplified further by using join instead of end=, just in a different way that you were using:

word = input("Enter word: ")

print(''.join(KEYPAD[c] for c in word)

C# Parsing files that are missing new line character at the end of the file

I have confirmed the file was bad it our IT group. What happened is that the original transfer process over the network to my local seems to have experienced a hiccup. I re-transferred the file and it parsed successfully. There are also more rows. What threw me off of this was that the file sizes between the network and my local were identical - so I did not consider re-transmitting the file during my research efforts.

The file transfer process seems to first be allocating a full file as empty and then starts filling it with data. Good luck diagnosing extremely large files that cannot be opened by standard text editors (e.g., Notepad, Notepadd++, Excel, etc.) to see this. I had to use Ultra Edit and the problem became visible.

Per Hans Passant's comment on a related question (see link below), StreamReader's Readline() method will handle large files just fine as it handles the file-system caching internally. So, OutOfMemoryExceptions should not be a problem. I assume this was aimed at computers with insufficient memory as opposed to bad files.

Thank you all for the troubleshooting and my apologies for any interruption.

Unable to read large log file with MemoryMappedViewStream

Why is missing the carriage return?

Your issue is the newline character.

Instead of \n, use \r\n for your new line in the file.

However, this will not fix the issue on all platforms, only the one you're testing on.

See here for more info on newlines and different platforms:

https://superuser.com/questions/374028/how-are-n-and-r-handled-differently-on-linux-and-windows

You can also try something like:

output.write(request.getRequestInfo().replaceAll("(\\\\r\\\\n|\\\\n)", "\\\n"));

Again, your servlet has no idea which platform the browser is on (Windows, Mac, or whatever) so unless you're going to look at the user agent header or something you'll always have a problem with one system or the other.

No newline character at end of file even after writing it

Try that:

    text_file.write('\n\n')

This should work!

Missing Newline Character