Filename: //lib/node_modules/npm//node_modules//which//README.md

# which Like the unix `which` utility. Finds the first instance of a specified executable in the PATH environment variable. Does not cache the results, so `hash -r` is not needed when the PATH changes. ## USAGE ```javascript const which = require('which') // async usage // rejects if not found const resolved = await which('node') // if nothrow option is used, returns null if not found const resolvedOrNull = await which('node', { nothrow: true }) // sync usage // throws if not found const resolved = which.sync('node') // if nothrow option is used, returns null if not found const resolvedOrNull = which.sync('node', { nothrow: true }) // Pass options to override the PATH and PATHEXT environment vars. await which('node', { path: someOtherPath, pathExt: somePathExt }) ``` ## CLI USAGE Just like the BSD `which(1)` binary but using `node-which`. ``` usage: node-which [-as] program ... ``` You can learn more about why the binary is `node-which` and not `which` [here](https://github.com/npm/node-which/pull/67) ## OPTIONS You may pass an options object as the second argument. - `path`: Use instead of the `PATH` environment variable. - `pathExt`: Use instead of the `PATHEXT` environment variable. - `all`: Return all matches, instead of just the first one. Note that this means the function returns an array of strings instead of a single string.

./Ninja\.