http://plasmasturm.org/code/rename/
rename 's/(\d+)_create_([a-z_]+).rb/$2.rb/' *
20171101090000_create_test_hoge.rb
test_hoge.rb
grep -l 'Create' *.rb | xargs sed -i.bak -e 's/Create//g'
http://plasmasturm.org/code/rename/
rename 's/(\d+)_create_([a-z_]+).rb/$2.rb/' *
20171101090000_create_test_hoge.rb
test_hoge.rb
grep -l 'Create' *.rb | xargs sed -i.bak -e 's/Create//g'