logtop show number of lines per second, also classify them so you can show a "top" of every aspect of your logfile : tail -f access.log | awk '{print $1; fflush();}' | logtop
You can do some boolean logic like
A or B then C else D using
or : ||
and : &&
So you can do some :
# false || false && echo true || echo false
false
# true || false && echo true || echo false
true
# false || true && echo true || echo false
true
# true || true && echo true || echo false
true
and so on ...
I use it like :
(ssh example.com 'test something') || $(ssh example.net 'test something') && echo ok || echo ko
Show Sample Output
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