Converting .bash_profile to .zprofile caused "command not found" on almost all commands

You need to update your PATH in zsh to search the paths where those programs are stored.

The bash_profile cannot be directly translated to zprofile. They are two different shells and have different configuration files, commands, etc.

The PATH and PROMPT syntax is different.

Here is a fairly comprehensive description of zsh: https://scriptingosx.com/2019/06/moving-to-zsh/

Just because someone posts something on the Internet, does not mean they have actually tested what they posted. There are similarities, and dissimilarities between the Bash and Zsh dot file syntax. Your inability to find standard UNIX commands tells me that your current PATH setting is toast.

At your current shell prompt in the Terminal enter the following:

export PATH=".:$HOME:/usr/local/bin:$PATH

Then take what you want from my own .zshrc and add it to yours using vim.

# .zshrc
export PATH=".:$HOME/bin:/usr/local/bin:$PATH"
export MANPATH=".:/user/local/share/man:/usr/share/man:$MANPATH"
TPUT="/usr/bin/tput"
Bluebld="$(${TPUT} bold; ${TPUT} setaf 63)"
White="$(${TPUT} bold; ${TPUT} setaf 15)"
Green="$(${TPUT} bold; ${TPUT} setaf 42)"
Normal="$(${TPUT} sgr0)"
# don't want VPN DNS changing my hostname
MyHost="$(networksetup -getcomputername)"
export CLICOLOR=1
# [e]grep matches are quite yellow
export GREP_COLOR='00;38;5;226'
export GREP_OPTIONS='--color=auto --extended-regexp'
export LSCOLORS='gxfxcxdxbxegedabagacad'
export HOMEBREW_NO_ANALYTICS=1
PS1="%{${Green}%}${MyHost}: %~ %% %{${White}%}"
# command-line editing using vi/vim
bindkey -v
alias tt='open -a Textastic "$@"'



Then use:

/usr/bin/vi ~/.zshrc

When you have the zshrc dot file configured and saved, then:

source ~/.zshrc

and all should be well.

You are welcome.