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Edit File : README.md \| Size : 1.43 KB
# osenv Look up environment settings specific to different operating systems. ## Usage ```javascript var osenv = require('osenv') var path = osenv.path() var user = osenv.user() // etc. // Some things are not reliably in the env, and have a fallback command: var h = osenv.hostname(function (er, hostname) { h = hostname }) // This will still cause it to be memoized, so calling osenv.hostname() // is now an immediate operation. // You can always send a cb, which will get called in the nextTick // if it's been memoized, or wait for the fallback data if it wasn't // found in the environment. osenv.hostname(function (er, hostname) { if (er) console.error('error looking up hostname') else console.log('this machine calls itself %s', hostname) }) ``` ## osenv.hostname() The machine name. Calls `hostname` if not found. ## osenv.user() The currently logged-in user. Calls `whoami` if not found. ## osenv.prompt() Either PS1 on unix, or PROMPT on Windows. ## osenv.tmpdir() The place where temporary files should be created. ## osenv.home() No place like it. ## osenv.path() An array of the places that the operating system will search for executables. ## osenv.editor() Return the executable name of the editor program. This uses the EDITOR and VISUAL environment variables, and falls back to `vi` on Unix, or `notepad.exe` on Windows. ## osenv.shell() The SHELL on Unix, which Windows calls the ComSpec. Defaults to 'bash' or 'cmd'. Back

Edit File : README.md | Size : 1.43 KB

# osenv

Look up environment settings specific to different operating systems.

## Usage

```javascript
var osenv = require('osenv')
var path = osenv.path()
var user = osenv.user()
// etc.

// Some things are not reliably in the env, and have a fallback command:
var h = osenv.hostname(function (er, hostname) {
  h = hostname
})
// This will still cause it to be memoized, so calling osenv.hostname()
// is now an immediate operation.

// You can always send a cb, which will get called in the nextTick
// if it's been memoized, or wait for the fallback data if it wasn't
// found in the environment.
osenv.hostname(function (er, hostname) {
  if (er) console.error('error looking up hostname')
  else console.log('this machine calls itself %s', hostname)
})
```

## osenv.hostname()

The machine name.  Calls `hostname` if not found.

## osenv.user()

The currently logged-in user.  Calls `whoami` if not found.

## osenv.prompt()

Either PS1 on unix, or PROMPT on Windows.

## osenv.tmpdir()

The place where temporary files should be created.

## osenv.home()

No place like it.

## osenv.path()

An array of the places that the operating system will search for
executables.

## osenv.editor()

Return the executable name of the editor program.  This uses the EDITOR
and VISUAL environment variables, and falls back to `vi` on Unix, or
`notepad.exe` on Windows.

## osenv.shell()

The SHELL on Unix, which Windows calls the ComSpec.  Defaults to 'bash'
or 'cmd'.

Back