$ curl cheat.sh/
 cheat:export 
# To show current shell attributes:
export

# To export an environment variable:
export VARNAME="value"

 tldr:export 
# export
# Command to mark shell variables in the current environment to be exported with any newly forked child processes.
# More information: <https://www.gnu.org/software/bash/manual/bash.html#index-export>.

# Set a new environment variable:
export VARIABLE=value

# Remove an environment variable:
export -n VARIABLE

# Mark a shell function for export:
export -f FUNCTION_NAME

# Append something to the PATH variable:
export PATH=$PATH:path/to/append

$
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