基于Vue+SpringCloud博客的设计与实现

# ShellJS - Unix shell commands for Node.js [](https://gitter.im/shelljs/shelljs?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [](https://travis-ci.org/shelljs/shelljs) [](https://ci.appveyor.com/project/shelljs/shelljs/branch/master) [](https://codecov.io/gh/shelljs/shelljs) [](https://www.npmjs.com/package/shelljs) [](https://www.npmjs.com/package/shelljs) ShellJS is a portable **(Windows/Linux/OS X)** implementation of Unix shell commands on top of the Node.js API. You can use it to eliminate your shell script's dependency on Unix while still keeping its familiar and powerful commands. You can also install it globally so you can run it from outside Node projects - say goodbye to those gnarly Bash scripts! ShellJS is proudly tested on every node release since `v0.11`! The project is [unit-tested](http://travis-ci.org/shelljs/shelljs) and battle-tested in projects like: + [PDF.js](http://github.com/mozilla/pdf.js) - Firefox's next-gen PDF reader + [Firebug](http://getfirebug.com/) - Firefox's infamous debugger + [JSHint](http://jshint.com) & [ESLint](http://eslint.org/) - popular JavaScript linters + [Zepto](http://zeptojs.com) - jQuery-compatible JavaScript library for modern browsers + [Yeoman](http://yeoman.io/) - Web application stack and development tool + [Deployd.com](http://deployd.com) - Open source PaaS for quick API backend generation + And [many more](https://npmjs.org/browse/depended/shelljs). If you have feedback, suggestions, or need help, feel free to post in our [issue tracker](https://github.com/shelljs/shelljs/issues). Think ShellJS is cool? Check out some related projects in our [Wiki page](https://github.com/shelljs/shelljs/wiki)! Upgrading from an older version? Check out our [breaking changes](https://github.com/shelljs/shelljs/wiki/Breaking-Changes) page to see what changes to watch out for while upgrading. ## Command line use If you just want cross platform UNIX commands, checkout our new project [shelljs/shx](https://github.com/shelljs/shx), a utility to expose `shelljs` to the command line. For example: ``` $ shx mkdir -p foo $ shx touch foo/bar.txt $ shx rm -rf foo ``` ## A quick note about the docs For documentation on all the latest features, check out our [README](https://github.com/shelljs/shelljs). To read docs that are consistent with the latest release, check out [the npm page](https://www.npmjs.com/package/shelljs) or [shelljs.org](http://documentup.com/shelljs/shelljs). ## Installing Via npm: ```bash $ npm install [-g] shelljs ``` ## Examples ```javascript var shell = require('shelljs'); if (!shell.which('git')) { shell.echo('Sorry, this script requires git'); shell.exit(1); } // Copy files to release dir shell.rm('-rf', 'out/Release'); shell.cp('-R', 'stuff/', 'out/Release'); // Replace macros in each .js file shell.cd('lib'); shell.ls('*.js').forEach(function (file) { shell.sed('-i', 'BUILD_VERSION', 'v0.1.2', file); shell.sed('-i', /^.*REMOVE_THIS_LINE.*$/, '', file); shell.sed('-i', /.*REPLACE_LINE_WITH_MACRO.*\n/, shell.cat('macro.js'), file); }); shell.cd('..'); // Run external tool synchronously if (shell.exec('git commit -am "Auto-commit"').code !== 0) { shell.echo('Error: Git commit failed'); shell.exit(1); } ``` ## Global vs. Local We no longer recommend using a global-import for ShellJS (i.e. `require('shelljs/global')`). While still supported for convenience, this pollutes the global namespace, and should therefore only be used with caution. Instead, we recommend a local import (standard for npm packages): ```javascript var shell = require('shelljs'); shell.echo('hello world'); ``` <!-- DO NOT MODIFY BEYOND THIS POINT - IT'S AUTOMATICALLY GENERATED --> ## Command reference All commands run synchronously, unless otherwise stated. All commands accept standard bash globbing characters (`*`, `?`, etc.), compatible with the [node glob module](https://github.com/isaacs/node-glob). For less-commonly used commands and features, please check out our [wiki page](https://github.com/shelljs/shelljs/wiki). ### cat(file [, file ...]) ### cat(file_array) Examples: ```javascript var str = cat('file*.txt'); var str = cat('file1', 'file2'); var str = cat(['file1', 'file2']); // same as above ``` Returns a string containing the given file, or a concatenated string containing the files if more than one file is given (a new line character is introduced between each file). ### cd([dir]) Changes to directory `dir` for the duration of the script. Changes to home directory if no argument is supplied. ### chmod([options,] octal_mode || octal_string, file) ### chmod([options,] symbolic_mode, file) Available options: + `-v`: output a diagnostic for every file processed + `-c`: like verbose but report only when a change is made + `-R`: change files and directories recursively Examples: ```javascript chmod(755, '/Users/brandon'); chmod('755', '/Users/brandon'); // same as above chmod('u+x', '/Users/brandon'); chmod('-R', 'a-w', '/Users/brandon'); ``` Alters the permissions of a file or directory by either specifying the absolute permissions in octal form or expressing the changes in symbols. This command tries to mimic the POSIX behavior as much as possible. Notable exceptions: + In symbolic modes, 'a-r' and '-r' are identical. No consideration is given to the umask. + There is no "quiet" option since default behavior is to run silent. ### cp([options,] source [, source ...], dest) ### cp([options,] source_array, dest) Available options: + `-f`: force (default behavior) + `-n`: no-clobber + `-u`: only copy if source is newer than dest + `-r`, `-R`: recursive + `-L`: follow symlinks + `-P`: don't follow symlinks Examples: ```javascript cp('file1', 'dir1'); cp('-R', 'path/to/dir/', '~/newCopy/'); cp('-Rf', '/tmp/*', '/usr/local/*', '/home/tmp'); cp('-Rf', ['/tmp/*', '/usr/local/*'], '/home/tmp'); // same as above ``` Copies files. ### pushd([options,] [dir | '-N' | '+N']) Available options: + `-n`: Suppresses the normal change of directory when adding directories to the stack, so that only the stack is manipulated. Arguments: + `dir`: Makes the current working directory be the top of the stack, and then executes the equivalent of `cd dir`. + `+N`: Brings the Nth directory (counting from the left of the list printed by dirs, starting with zero) to the top of the list by rotating the stack. + `-N`: Brings the Nth directory (counting from the right of the list printed by dirs, starting with zero) to the top of the list by rotating the stack. Examples: ```javascript // process.cwd() === '/usr' pushd('/etc'); // Returns /etc /usr pushd('+1'); // Returns /usr /etc ``` Save the current directory on the top of the directory stack and then cd to `dir`. With no arguments, pushd exchanges the top two directories. Returns an array of paths in the stack. ### popd([options,] ['-N' | '+N']) Available options: + `-n`: Suppresses the normal change of directory when removing directories from the stack, so that only the stack is manipulated. Arguments: + `+N`: Removes the Nth directory (counting from the left of the list printed by dirs), starting with zero. + `-N`: Removes the Nth directory (counting from the right of the list printed by dirs), starting with zero. Examples: ```javascript echo(process.cwd()); // '/usr' pushd('/etc'); // '/etc /usr' echo(process.cwd()); // '/etc' popd();