UNIX export command

Question

I am trying to understand the use of export command.

I tried using man export, but there is no manual for this command.

Can anyone please help me out understanding the use of export in UNIX?

Answer 1

export - Set export attribute for shell variables.

SYNOPSIS

export [-fn] [name[=value] ...] or export -p

DESCRIPTION The export- command is a BUILTINS command in the bash shell, which means it is part of your shell. The export command has a basic syntax and only three command arguments, making it relatively easy to use. The export command, in general, marks an environment variable for export with any freshly forked child processes, allowing a child process to inherit all marked variables.

Options

Tag	Description
-p	List of all names that are exported in the current shell
-n	Remove names from export list
-f	Names are exported as functions