2016-07-01 11 views

Antwort

1

[I] npm in Ruby-Konsole

Die #system Methode, "Führt Befehl ... in einer Subshell." Ausgeführt werden müssen siehe: http://ruby-doc.org/core-2.2.0/Kernel.html#method-i-system

$ irb 
irb(main):001:0> system('npm') 

Usage: npm <command> 

where <command> is one of: 
    access, adduser, bin, bugs, c, cache, completion, config, 
    ddp, dedupe, deprecate, dist-tag, docs, edit, explore, get, 
    help, help-search, i, init, install, install-test, it, link, 
    list, ln, logout, ls, outdated, owner, pack, ping, prefix, 
    prune, publish, rb, rebuild, repo, restart, root, run, 
    run-script, s, se, search, set, shrinkwrap, star, stars, 
    start, stop, t, tag, team, test, tst, un, uninstall, 
    unpublish, unstar, up, update, v, version, view, whoami 

npm <cmd> -h  quick help on <cmd> 
npm -l   display full usage info 
npm help <term> search for help on <term> 
npm help npm  involved overview 

Specify configs in the ini-formatted file: 
    /Users/dev/.npmrc 
or on the command line via: npm <command> --key value 
Config info can be viewed via: npm help config 

[email protected] /usr/local/lib/node_modules/npm 
=> false 
irb(main):002:0> 

Alternativ Backticks (` cmd `) return "die Standardausgabe in einer Subshell cmd ausgeführt wird." finden Sie unter: http://ruby-doc.org/core-2.2.0/Kernel.html#method-i-60

$ irb 
irb(main):001:0> puts `npm` 

Usage: npm <command> 

where <command> is one of: 
    access, adduser, bin, bugs, c, cache, completion, config, 
    ddp, dedupe, deprecate, dist-tag, docs, edit, explore, get, 
    help, help-search, i, init, install, install-test, it, link, 
    list, ln, logout, ls, outdated, owner, pack, ping, prefix, 
    prune, publish, rb, rebuild, repo, restart, root, run, 
    run-script, s, se, search, set, shrinkwrap, star, stars, 
    start, stop, t, tag, team, test, tst, un, uninstall, 
    unpublish, unstar, up, update, v, version, view, whoami 

npm <cmd> -h  quick help on <cmd> 
npm -l   display full usage info 
npm help <term> search for help on <term> 
npm help npm  involved overview 

Specify configs in the ini-formatted file: 
    /Users/dev/.npmrc 
or on the command line via: npm <command> --key value 
Config info can be viewed via: npm help config 

[email protected] /usr/local/lib/node_modules/npm 
=> nil 
irb(main):002:0>