gemのコマンド
$ gem environment
RubyGems Environment:
- RUBYGEMS VERSION: 3.0.3
- RUBY VERSION: 2.6.3 (2019-04-16 patchlevel 62) x86_64-darwin18
- INSTALLATION DIRECTORY: /Users/beco/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0
- USER INSTALLATION DIRECTORY: /Users/beco/.gem/ruby/2.6.0
- RUBY EXECUTABLE: /Users/beco/.rbenv/versions/2.6.3/bin/ruby
- GIT EXECUTABLE: /usr/local/bin/git
- EXECUTABLE DIRECTORY: /Users/beco/.rbenv/versions/2.6.3/bin
- SPEC CACHE DIRECTORY: /Users/beco/.gem/specs
- SYSTEM CONFIGURATION DIRECTORY: /Users/beco/.rbenv/versions/2.6.3/etc
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-18
- GEM PATHS:
- /Users/beco/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0
- /Users/beco/.gem/ruby/2.6.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /Users/beco/.rbenv/versions/2.6.3/bin
- /usr/local/Cellar/rbenv/1.1.2/libexec
- /Users/beco/.nodebrew/current/bin
- /Users/beco/.rbenv/shims
- /Users/beco/.rbenv/bin
- /usr/local/sbin
- /usr/local/bin
- /usr/local/bin
- /usr/local/sbin
- /usr/bin
- /bin
- /usr/sbin
- /sbin
$ gem list
*** LOCAL GEMS ***
actioncable (5.2.3)
actionmailer (5.2.3)
actionpack (5.2.3)
actionview (5.2.3)
activejob (5.2.3)
activemodel (5.2.3)
activerecord (5.2.3)
activestorage (5.2.3)
activesupport (5.2.3, 5.0.7.2)
addressable (2.6.0)
arel (9.0.0)
backports (3.15.0)
bigdecimal (default: 1.4.1)
builder (3.2.3)
bundler (default: 1.17.2)
cmath (default: 1.0.0)
coffee-script (2.4.1)
coffee-script-source (1.12.2)
concurrent-ruby (1.1.5)
contracts (0.13.0)
crass (1.0.4)
csv (default: 3.0.9)
date (default: 2.0.0)
dbm (default: 1.0.0)
did_you_mean (1.3.0)
dotenv (2.7.2)
e2mmap (default: 0.1.0)
erubi (1.8.0)
erubis (2.7.0)
etc (default: 1.0.1)
execjs (2.7.0)
fast_blank (1.0.0)
fastimage (2.1.5)
fcntl (default: 1.0.0)
ffi (1.10.0)
fiddle (default: 1.0.0)
fileutils (default: 1.1.0)
forwardable (default: 1.2.0)
gdbm (default: 2.0.0)
globalid (0.4.2)
haml (5.0.4)
hamster (3.0.0)
hashie (3.6.0)
i18n (0.9.5)
io-console (default: 0.4.7)
ipaddr (default: 1.2.2)
irb (default: 1.0.0)
json (default: 2.1.0)
kramdown (1.17.0)
listen (3.0.8)
logger (default: 1.3.0)
loofah (2.2.3)
mail (2.7.1)
marcel (0.3.3)
matrix (default: 0.1.0)
memoist (0.16.0)
method_source (0.9.2)
middleman (4.3.4)
middleman-cli (4.3.4)
middleman-core (4.3.4)
mimemagic (0.3.3)
mini_mime (1.0.1)
mini_portile2 (2.4.0)
minitest (5.11.3)
mutex_m (default: 0.1.0)
net-telnet (0.2.0)
nio4r (2.3.1)
nokogiri (1.10.3)
openssl (default: 2.1.2)
ostruct (default: 0.1.0)
padrino-helpers (0.13.3.4)
padrino-support (0.13.3.4)
parallel (1.17.0)
power_assert (1.1.3)
prime (default: 0.1.0)
psych (default: 3.1.0)
public_suffix (3.0.3)
rack (2.0.7)
rack-test (1.1.0)
rails (5.2.3)
rails-dom-testing (2.0.3)
rails-html-sanitizer (1.0.4)
railties (5.2.3)
rake (12.3.2)
rb-fsevent (0.10.3)
rb-inotify (0.10.0)
rdoc (default: 6.1.0)
rexml (default: 3.1.9)
rss (default: 0.2.7)
sassc (2.0.1)
scanf (default: 1.0.0)
sdbm (default: 1.0.0)
servolux (0.13.0)
shell (default: 0.7)
sprockets (3.7.2)
sprockets-rails (3.2.1)
stringio (default: 0.0.2)
strscan (default: 1.0.0)
sync (default: 0.5.0)
temple (0.8.1)
test-unit (3.2.9)
thor (0.20.3)
thread_safe (0.3.6)
thwait (default: 0.1.0)
tilt (2.0.9)
tracer (default: 0.1.0)
tzinfo (1.2.5)
uglifier (3.2.0)
webrick (default: 1.4.2)
websocket-driver (0.7.0)
websocket-extensions (0.1.3)
xmlrpc (0.3.0)
zlib (default: 1.0.0)