Zx logo zx

#!/usr/bin/env zx

await $`cat package.json | grep name`

let branch = await $`git branch --show-current`
await $`dep deploy --branch=${branch}`

await Promise.all([
  $`sleep 1; echo 1`,
  $`sleep 2; echo 2`,
  $`sleep 3; echo 3`,
])

let name = 'foo bar'
await $`mkdir /tmp/${name}`

Bash is great, but when it comes to writing more complex scripts, many people prefer a more convenient programming language. JavaScript is a perfect choice, but the Node.js standard library requires additional hassle before using. The zx package provides useful wrappers around child_process, escapes arguments and gives sensible defaults.

Install

npm install zx

Documentation

Read documentation on google.github.io/zx.

License

Apache-2.0

Disclaimer: This is not an officially supported Google product.

google/zx

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"richText": "<article class=\"markdown-body entry-content container-lg\" itemprop=\"text\"><div class=\"markdown-heading\" dir=\"auto\"><h1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"><a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://camo.githubusercontent.com/5f714c65dc258cb17ef40c5ac0a477ebf22dfcde8507c93ab8870219d500dcd0/68747470733a2f2f676f6f676c652e6769746875622e696f2f7a782f696d672f6c6f676f2e737667\"><img src=\"https://camo.githubusercontent.com/5f714c65dc258cb17ef40c5ac0a477ebf22dfcde8507c93ab8870219d500dcd0/68747470733a2f2f676f6f676c652e6769746875622e696f2f7a782f696d672f6c6f676f2e737667\" alt=\"Zx logo\" height=\"32\" valign=\"middle\" data-canonical-src=\"https://google.github.io/zx/img/logo.svg\" style=\"max-width: 100%;\"></a> zx</h1><a id=\"user-content--zx\" class=\"anchor\" aria-label=\"Permalink: zx\" href=\"#-zx\"><svg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"><path d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"></path></svg></a></div>\n<div class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"#!/usr/bin/env zx\n\nawait $`cat package.json | grep name`\n\nlet branch = await $`git branch --show-current`\nawait $`dep deploy --branch=${branch}`\n\nawait Promise.all([\n $`sleep 1; echo 1`,\n $`sleep 2; echo 2`,\n $`sleep 3; echo 3`,\n])\n\nlet name = 'foo bar'\nawait $`mkdir /tmp/${name}`\"><pre>#!/usr/bin/env zx\n\n<span class=\"pl-k\">await</span> <span class=\"pl-en\">$</span><span class=\"pl-s\">`cat package.json | grep name`</span>\n\n<span class=\"pl-k\">let</span> <span class=\"pl-s1\">branch</span> <span class=\"pl-c1\">=</span> <span class=\"pl-k\">await</span> <span class=\"pl-en\">$</span><span class=\"pl-s\">`git branch --show-current`</span>\n<span class=\"pl-k\">await</span> <span class=\"pl-en\">$</span><span class=\"pl-s\">`dep deploy --branch=<span class=\"pl-s1\"><span class=\"pl-kos\">${</span><span class=\"pl-s1\">branch</span><span class=\"pl-kos\">}</span></span>`</span>\n\n<span class=\"pl-k\">await</span> <span class=\"pl-v\">Promise</span><span class=\"pl-kos\">.</span><span class=\"pl-en\">all</span><span class=\"pl-kos\">(</span><span class=\"pl-kos\">[</span>\n <span class=\"pl-en\">$</span><span class=\"pl-s\">`sleep 1; echo 1`</span><span class=\"pl-kos\">,</span>\n <span class=\"pl-en\">$</span><span class=\"pl-s\">`sleep 2; echo 2`</span><span class=\"pl-kos\">,</span>\n <span class=\"pl-en\">$</span><span class=\"pl-s\">`sleep 3; echo 3`</span><span class=\"pl-kos\">,</span>\n<span class=\"pl-kos\">]</span><span class=\"pl-kos\">)</span>\n\n<span class=\"pl-k\">let</span> <span class=\"pl-s1\">name</span> <span class=\"pl-c1\">=</span> <span class=\"pl-s\">'foo bar'</span>\n<span class=\"pl-k\">await</span> <span class=\"pl-en\">$</span><span class=\"pl-s\">`mkdir /tmp/<span class=\"pl-s1\"><span class=\"pl-kos\">${</span><span class=\"pl-s1\">name</span><span class=\"pl-kos\">}</span></span>`</span></pre></div>\n<p dir=\"auto\">Bash is great, but when it comes to writing more complex scripts,\nmany people prefer a more convenient programming language.\nJavaScript is a perfect choice, but the Node.js standard library\nrequires additional hassle before using. The <code>zx</code> package provides\nuseful wrappers around <code>child_process</code>, escapes arguments and\ngives sensible defaults.</p>\n<div class=\"markdown-heading\" dir=\"auto\"><h2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\">Install</h2><a id=\"user-content-install\" class=\"anchor\" aria-label=\"Permalink: Install\" href=\"#install\"><svg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"><path d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"></path></svg></a></div>\n<div class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"npm install zx\"><pre>npm install zx</pre></div>\n<div class=\"markdown-heading\" dir=\"auto\"><h2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\">Documentation</h2><a id=\"user-content-documentation\" class=\"anchor\" aria-label=\"Permalink: Documentation\" href=\"#documentation\"><svg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"><path d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"></path></svg></a></div>\n<p dir=\"auto\">Read documentation on <a href=\"https://google.github.io/zx/\" rel=\"nofollow\">google.github.io/zx</a>.</p>\n<div class=\"markdown-heading\" dir=\"auto\"><h2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\">License</h2><a id=\"user-content-license\" class=\"anchor\" aria-label=\"Permalink: License\" href=\"#license\"><svg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"><path d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"></path></svg></a></div>\n<p dir=\"auto\"><a href=\"/google/zx/blob/main/LICENSE\">Apache-2.0</a></p>\n<p dir=\"auto\">Disclaimer: <em>This is not an officially supported Google product.</em></p>\n</article>",
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