Fix Bash Error in Docker

By  on  

I really enjoy working with Docker because it gives me more insight into creating and maintaining your own environments, mostly from scratch.  I instantly gained a greater appreciation for Ops engineers, package creators, and other engineers who work on low level software.  I think what I'm trying to say is that I've made a whole bunch of mistakes and completed an insane amount of Google searches for help.

One of the more basic errors I've recently encountered was trying to run a bash script within the container, only to get the following error:  env: can't execute 'bash': No such file or directory.  I was under the impression that bash was always a given in Linux machines, but apparently not in alpine images.  The fix was adding the following to my Dockerfile file:

RUN apk update && apk add bash

Or if you're in the machine, just run:

apk update && apk add bash

That command installs bash and your bash scripts should then work!

Recent Features

  • By
    Welcome to My New Office

    My first professional web development was at a small print shop where I sat in a windowless cubical all day. I suffered that boxed in environment for almost five years before I was able to find a remote job where I worked from home. The first...

  • By
    Facebook Open Graph META Tags

    It's no secret that Facebook has become a major traffic driver for all types of websites.  Nowadays even large corporations steer consumers toward their Facebook pages instead of the corporate websites directly.  And of course there are Facebook "Like" and "Recommend" widgets on every website.  One...

Incredible Demos

Discussion

  1. Hamish

    Alternatively, you can use ash instead of bash.

    Not sure what the differences are, but I would expect parity on most standard features.

  2. If the script is simple you can use the default /bin/sh shell.

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!