SSH "no such file or directory" error on git push

Question

I have a private key that lives at ~/.ssh/github_rsa , and the corresponding public key has been uploaded to my Github account. I created a repository and set it up as the remote for the directory I'm working from, and in that directory's .git folder, I have the following config file:

[core]
    repositoryformatversion = 0
    filemode = true
    bare = false
    logallrefupdates = true
    sshCommand = 'ssh -i ~/.ssh/github_rsa -o IdentitiesOnly=yes'
[remote "repoName"]
    url= git@github.com:myusername/repoName.git
    fetch = +refs/heads/*:refs/remotes/repoName/*

When I run git push -u repoName main , I get the following error:

'ssh -i ~/.ssh/github_rsa -o IdentitiesOnly=yes': line 1: ssh -i github_rsa -o IdentitiesOnly=yes: No such file or directory
fatal: Could not read from remote repository.

Removing -o IdentitiesOnly=yes has no effect. Changing permissions on the key from 600 to 400 also had no effect. The file definitely exists, and exists at exactly that path.

Answer 1

gitconfig doesn't recognize single quotes. Use double quotes.

[core]
    sshCommand = "ssh -i ~/.ssh/github_rsa -o IdentitiesOnly=yes"