n_shell

A node REPL with ShellJS loaded by default.

This was inspired by (and forked from) n_.

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Installation:

$ npm install -g n_shell

Usage:

Invoking n_shell starts a node REPL with ShellJS required globally, with shell-like output:

bash $ n_shell
shelljs $ ls()
LICENSE
README.md
bin
node_modules
package.json
src
tmp
shelljs $ pwd()
/path/to/dir

But I don't want to use shelljs/global

No problem:

bash $ n_shell --no_global
shelljs $ typeof ls // not in the global namespace
'undefined'
shelljs $ shell.ls() // uses 'shell' prefix
LICENSE
README.md
bin
node_modules
package.json
src
tmp
shelljs $ shell.pwd()
/path/to/dir

But I want to use a different namespace

You're covered:

bash $ n_shell --no_global=$
shelljs $ $.ls() // now uses '$' as the prefix
LICENSE
README.md
bin
node_modules
package.json
src
tmp
shelljs $ $.pwd()
/path/to/dir

But I want to use a different version of ShellJS

Just install that version locally (npm install shelljs) and start up n_shell with the --path option:

bash $ n_shell --path=node_modules/shelljs
shelljs $

But I want plain JavaScript output

bash $ n_shell --noinspect
shelljs $ ls()
[ 'LICENSE',
  'README.md',
  'index.js',
  'node_modules',
  'package.json',
  stdout: 'LICENSE\nREADME.md\nindex.js\nnode_modules\npackage.json\n',
  stderr: null,
  code: 0,
  to: [Function],
  toEnd: [Function],
  cat: [Function],
  head: [Function],
  sed: [Function],
  sort: [Function],
  tail: [Function],
  grep: [Function],
  exec: [Function] ]

Available commands

This supports any command that ShellJS supports. It also adds some extra commands, for convenience. So far, this adds:

• shell.clear() (from shelljs-plugin-clear)
• shell.open() (from shelljs-plugin-open)
• shell.sleep() (from shelljs-plugin-sleep)

Options

• --global: Start a node REPL with the equivalent of require('shelljs/global'). This is the default behavior.
• --no_global [PREFIX], --local [PREFIX], -n [PREFIX]: Start a node REPL with the equivalent of var PREFIX = require('shelljs'). PREFIX defaults to shell, if not specified.
• --use_strict: enforce strict mode (default is false)
• --prompt <FORMAT>: use this format to generate the REPL prompt. Default is "shelljs %v%l $ "
  • %%: a literal % sign
  • %v: show the current version (from package.json)
  • %l: show [local] if this is using a local version of ShellJS
  • Want more format options? Let me know or send me a PR
• --noinspect: disable the default --inspect behavior. This provides less-readable REPL output, but behaves just as a standard Node REPL would.
• --path=path/to/shelljs/: the argument should be a path to a folder containing a ShellJS package.
• --inspect (default): an experimental switch to add a .inspect() method to the output of each command. The return values are still ShellStrings, but appear more readable and shell-like. Also, commands with no arguments can be invoked without parentheses, such as shell.pwd and shell.ls. Recommended for ShellJS v0.7+. Credit for the idea goes to piranna.

History

Similarly to n_, n_shell stores REPL history under ~/.n_shell_history.