shebang-regex
Advanced tools
Package description
The shebang-regex npm package is a simple utility that provides a regular expression for matching shebang lines in files. A shebang line is the first line in a script file that is used to indicate the script interpreter to be used to execute the file. It is commonly found at the top of script files in Unix-based systems and starts with '#!'. This package helps in identifying and extracting the shebang line from files.
Shebang line matching
The shebang-regex package exports a regular expression that matches the shebang line. Here's an example of how to use it in code to test if a string contains a shebang line: `const shebangRegex = require('shebang-regex'); console.log(shebangRegex.test('#!/usr/bin/env node')); // true`
/^#!.+/The shebang-command package is similar to shebang-regex in that it is used to parse the shebang line from a file or string. However, it goes a step further by specifically extracting the command after the shebang. This can be useful for determining the interpreter that the script is intended to be run with.
The hashbang-regex package is another alternative that provides a regular expression for matching shebang lines. It is similar to shebang-regex but may have slight differences in implementation or regex patterns. Users might choose one over the other based on preference or specific use cases.
Readme
Regular expression for matching a shebang
$ npm install --save shebang-regex
var shebangRegex = require('shebang-regex');
var str = '#!/usr/bin/env node\nconsole.log("unicorns");';
shebangRegex.test(str);
//=> true
shebangRegex.exec(str)[0];
//=> '#!/usr/bin/env node'
MIT © Sindre Sorhus
FAQs
Regular expression for matching a shebang line
The npm package shebang-regex receives a total of 49,461,473 weekly downloads. As such, shebang-regex popularity was classified as popular.
We found that shebang-regex demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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