I frequently restart commands like tail -f server.log to pipe it through
grep, cut, sed, or awk. It makes debugging easier, but it's an annoying extra
step. This tool is meant to be a drop-in replacement for tail -f (or tailf
if you have that). It responds to commands to dynamically change what it
filters without having to ^C and start over.
The tool supports
-
cutting lines to a certain column.
-
whitelisting lines with a ruby regular expression
-
blacklisting lines with a ruby regular expression
-
throttling the output
-
outputting lines between two regualar-expression-matched lines. This is similar to running something of the form
tail -f server.log | sed -n -e '/startline/,/endline/p'
-
clearing all filters
Future features may include
- saving/restoring settings
- configurable colorizing
Add this line to your application's Gemfile:
gem 'fail'
And then execute:
$ bundle
Or install it yourself as:
$ gem install fail
TODO: Write usage instructions here
- Fork it ( http://github.com//fail/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request