Grep Commands

Grep Command

cd ../..
grep -Rni 'albert' .
pwd - displays path
grep -ir acts_as_json  - display acts_as_jason in which file
gem list | grep rspec  - list all rspec associated files
gem list | grep friendly_id

grep rspec Gemfile.lock - displays all rpec gem in the gemfile.lock. You shud b in dir.
bundle - install gems from gemfile
rvm help
which rvm
rvm reload
sudo mv spec spec.system
bundle exec rspec spec/controllers/brigades_controller_spec.rb
gem search -r attachment

*****************
shell scripting
---------------
searching in directory
$zsh
$ % find . -name '*.rb' -mtime -3  #mtime = modified time less than 3 days
$ cd rails app
$ find . -name '*.rb' | xargs grep albert
$ find . -name '*.rb' | xargs ack albert

replacing names
--------------
find . -name '*.rb' | sed -i 's/albert/kwame/'