I want to find out what was added to a log file between 2 tasks. Right now the way I do it is:
content of test.log initially
aaa
bbb
saving content of the log
$ cp test.log test.log.before
doing something
content of test.log after doing something
aaa
bbb
ccc
saving content of the log
$ cp test.log test.log.after
showing the difference
$ diff test.log.before test.log.after
2a3
> ccc
What I don't like with this method is that I get some noise from diff
(2a3
and >
) whereas I just want ccc
.
Q: Is there a way I can just get the difference between the 2 log files (i.e. what is new in test.log.after, ccc
)?
I had a look at diff's man page but I don't see anything obvious there.