Korn Shell: Unix and Linux Programming Manual, Third Edition, The By Anatole Olczak
Table of Contents
Chapter 9. Miscellaneous Commands
The export Command
The export command sets and/or exports variables to the environment. It is equivalent to typeset x, except when used within functions. Here, the PATH variable is set and exported:
$ export PATH=$PATH:/usr/5bin
Multiple variables can be given to the export command. In this example, the variables A, B, C, and D are set and/or exported:
$ export A B=1 C D=2
If no arguments are specified, the export command lists the names and values of exported variables: