The null terminated entries are only relevant if you have files or directories with a newline in their name, which seems kind of far fetched, but is the more correct way to handle the generic case, I agree. AaronFranke replace git ls-files -z with git grep -zIl '' — Patrick Oscity.
Show 9 more comments. KeithThompson, csh 's echo is the one known to output nothing when not passed any argument. Doesn't this cause an extra newline to be added to files that already have newlines?
Show 1 more comment. Note that it doesn't work with yash if the last character in the file is a multi-byte character in UTF-8 locales for instance , or if the locale is C and the last byte in the file has the 8th bit set. With other shells except zsh , it would not add a newline if the file ended in a NUL byte but then again, that would mean the input would be non-text even after a newline is added. This does not add a newline for me. Works for me; it even prints "Newline appended" ed This works!
Other solutions didn't work in my terminal Alexander Alexander 8, 3 3 gold badges 33 33 silver badges 55 55 bronze badges. I wouldn't use the python version in any sort of loop because of the slow python startup time.
Of course you could do the loop in python if you wanted. The startup time for Python is 0. Do you really consider that to be problematic? Startup time does matter if you call python in a loop, that is why I said consider doing the loop in python.
Then you only incur the startup cost once. For me, half the cost the startup is more than half of the time of the whole snipit, I would consider that substantial overhead. Again, irrelevant if only doing a small number of files — Kevin Cox. This worked fine for me — Daniel Gomez Rico. Show 3 more comments. Does not change file timestamp if there is no need to add a newline. All other solutions presented here change the timestamp of file.
ImHere ImHere No temp files needed nor used. No hardlinks are affected. If this test is run twice, it will not add another newline. Then, of course, you can redirect it to a file. MichalH MichalH 2, 1 1 gold badge 10 10 silver badges 27 27 bronze badges.
The fact that I can use this in a pipeline is helpful. This allows me to count the number of rows in a CSV file, excluding the header. And it helps get an accurate line count on windows files that don't end with a newline or carriage return.
It was "how to add a newline? That won't work like that as stdin and stdout share the same open-file description so cursor within the file. If you're on a GNU or BSD system, you could handle all possible file names by adding -print0 to find, -z to sort, and -0 to perl, like this: find.
So try either: vi -ecwq foo. Community Bot 1. On OS X you probably have to use -i '' untested. Note that find. To exclude: find. Oh well. You could write a fix-non-delimited-line script like:! New Post. Hi, I enable All Warnings during compiling my programs. What is the significance of this warning: warning: no newline at end of file I use gcc to compile, but wonder why it needs a newline at end of the file!
Any clues??? Follow Post Reply. SM Ryan. I use gcc to compile, but wonder why it needs a newline at end of the file! Couldd indicate a corrupted file.
And it causes problems with some C preprocessors. Genocide is the most exhausting activity one can engage in. Next to soccer. Robert W Hand. Bhupender Sharma Bhupender Sharma 11 2 2 bronze badges. Seems like you need to add a new line character to the end of the file. Open the file, go to the end, push enter The Enter button on your keyboard. Push it. By putting another enter there you will create "empty line" at bottom of source.
Related: on Unix. SE: What's the point in adding a new line to the end of a file? See also Why should text files end with a newline? Show 2 more comments. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook.
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