After installing Homebrew I get `zsh: command not found: brew`

I had a similar issue on macOS Big Sur (11.0.1). In my case homebrew was saved in /opt/homebrew/, and not in /usr/local/....

So I added

export PATH=/opt/homebrew/bin:$PATH

to .zshrc file in my home directory, and the ZSH shell was able to find the brew command.

for this error zsh: command not found: brew

1. Make sure you've installed Brew, with this (wait until its done installing) (Edit: added ending quote to the end)

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

2. Then follow NEXT STEPS shown on command line, it should show something like this

==> Next steps:
- Add Homebrew to your PATH in /Users/$USER/.zprofile:
    echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users/$USER/.zprofile
    eval $(/opt/homebrew/bin/brew shellenv)

3. Copy and paste the first line on the same terminal window, then hit enter

echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users/$USER/.zprofile

4. Then Copy and paste the last line on the same terminal window, then hit enter

eval $(/opt/homebrew/bin/brew shellenv)

Finally you should be able to use brew help and if that works, it means that brew was installed properly and running from ZSH.

Homebrew has been installed on you computer. You need to modify your PATH like this:

export PATH=/usr/local/bin:$PATH

or execute brew from its origin:

/usr/local/bin/brew install maven

Here are the steps I did...

1.Install homebrew

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

2.Run brew help and see if it's working... If it showing an error "zsh: command not found: brew" follow along.

3. Change the path to:

echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users/"YOUR USER NAME"/.zprofile

Remember to change the "USER NAME" with yours, Then type in:

eval $(/opt/homebrew/bin/brew shellenv)

Once successfully running these command type "brew help" to see if everything went ok.

I got the same issue after installing Homebrew in my MacBook (macOS Big Sur V 11.0.1).

After installation, in the console it says what should be done:

==> Next steps:
- Add Homebrew to your PATH in /Users/USER/.zprofile:
  echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users/USER/.zprofile
  eval $(/opt/homebrew/bin/brew shellenv)
- Run `brew help` to get started

Executing those two commands, in order, will add the brew command into the PATH:

echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/USER/.zprofile

eval "$(/opt/homebrew/bin/brew shellenv)"