'RVM: "sha256sum nor shasum found"

I've just installed RVM on a new machine and when switching into a directory containing a .rvmrc file (which I've accepted) I'm getting:

ERROR: Neither sha256sum nor shasum found in the PATH

I'm on OS X 10.5.8. — Probably missing something somewhere. Any ideas what's going on and how to fix this?

rvm


Solution 1:[1]

My OpenSSL happened to not have a sha256 enc function for some reason:

$ openssl sha256
openssl:Error: 'sha256' is an invalid command.

After some googling, I found that there is an equivalent called gsha256sum that comes with the homebrew recipe "coreutils". After installing that (brew install coreutils), I had a gsha256sum binary in /usr/local/bin, so it was just a matter of symlinking it:

$ sudo ln -s /usr/local/bin/gsha256sum /usr/local/bin/sha256sum

That fixed it for me.

Solution 2:[2]

ciastek's answer worked for me until I tried to run rvm within a $() in a bash script - rvm couldn't see the sha256sum function. So I created a file called sha256sum with the following contents: 

openssl sha256 "$@" | awk '{print $2}'

put it in ~/bin, made it executable, and added that folder to my path (and removed the function from my .bashrc).

(Many thanks to my coworker Rob for helping me find that fix.)

Solution 3:[3]

On MacOS Sierra run

$ shasum -a 256 filename

Based on @vikas027 comment just add

alias sha256sum='shasum -a 256' to your ~/.zshrc

Solution 4:[4]

In my opinion Leopard just doesn't have /usr/bin/shasum.

Take a look at shasum manpage - this manpage is only for Snow Leopard. Other manpages, like ls manpage (can't link to it, not enough reputation), are for previous versions of MacOS X.

Workaround: Use OpenSSL to calculate sha256 checksums.

Leopards' OpenSSL (0.9.7) doesn't handle sha256. Upgrade OpenSSL. I've used MacPorts (can't link to it, not enough reputation). OpenSSL's dependecy zlib 1.2.5 required to upgrade XCode to 3.1. Can I get Xcode for Leopard still? is helpful.

Alias sha256sum to OpenSSL and correct the way it formats an output. I've put in my .bash_profile:

function sha256sum() { openssl sha256 "$@" | awk '{print $2}'; }

Solution 5:[5]

I'm on a relatively fresh install of Lion (OS X 10.7.4). In my /usr/bin/ folder I had these files:

    -rw-rw-rw-  35 root  wheel   807B /usr/bin/shasum
    -rwxr-xr-x   1 root  wheel   7.5K /usr/bin/shasum5.10
    -rwxr-xr-x   1 root  wheel   7.5K /usr/bin/shasum5.12

I had a shasum, it just wasn't marked as executable. A quick sudo chmod a+x /usr/bin/shasum solved the issue for me.

Solution 6:[6]

For mac os X 10.9.5 and you profile get /usr/bin path 

 date +%s | shasum | base64 | head -c 32 ; echo

Solution 7:[7]

And if you found yourself here in 2022 wondering what works on the latest Mac (Mac OS Big Sur). Do following.

 sudo brew install coreutils
 sudo ln -s /usr/bin/shasum<Version_for_your_installation>  /usr/local/bin/sha256sum

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 animuson
Solution 2 Lari Kirby
Solution 3
Solution 4 Community
Solution 5 JT.
Solution 6 abkrim
Solution 7 Amit Meena

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