I have a huge number of source files that are all lacking a newline at the end.
How do I automatically add a newline to the end of each of them?
Some may already have a newline, so it should only be added if necessary.
I'm probably not looking for code, per se, but just something I can run in Terminal to add the necessary newlines (or some kind of programming or development tool).
Converted Norman's answer to a split one-liner for convenience.
for i in * ; do echo $i; \
if diff /dev/null "$i" | tail -1 | \
grep '^\\ No newline' > /dev/null; then echo >> "$i"; \
fi; done
Replace * with whatever file pattern you want, eg *.c
And another to just tell you which files are broken:
for i in * ; do \
if diff /dev/null "$i" | tail -1 | \
grep '^\\ No newline' > /dev/null; then echo $i; \
fi; done