export function from zsh to bash for use in gnu parallel

Question

How do I export a function from zsh, so that I can use it in gnu parallel?

example:

function my_func(){ echo $1;}
export -f my_func
parallel "my_func {}" :::  1 2

in bash will output

1
2

whereas in zsh it will output error messages

/bin/bash: my_func: command not found
/bin/bash: my_func: command not found

Answer 1

A lot has changed since 2014.

Today you simply do:

# Activate env_parallel function (can be done in .zshenv)
. `which env_parallel.zsh`

function my_func(){ echo $1;}
env_parallel "my_func {}" :::  1 2

If your environment is big:

# Activate env_parallel function (can be done in .zshenv)
. `which env_parallel.zsh`

# Record which environment to ignore
env_parallel --session

function my_func(){ echo $1;}
env_parallel "my_func {}" :::  1 2