$ whatis set

set - Displays both local and global environment variables

Examples:

1. set
2. env
3. printe PATH
4. printenv $TZ

Please click on " man env " to see the Manual Page for this command.

In addition, I recommand you should read the manual pages for related commands below:

man printenv to see the Manual Page for this command.

man setenv to see the Manual Page for this command.