This command can give you the list of all the environment variables set under the system. It is used to run a program in a modified environment. Command comes from “coreutils” package.
Examples:
1. To run a program to ignore environment
| $ env -i myprog.sh $ env –ignore-environment myprog.sh |
2. To end each output line with 0 byte rather than newline
| $ env -0 myprog.sh $ env –null myprog.sh |
3. To remove a variable from the environment
| $ env -u NAME $ env –unset=NAME |
4. To display the help
| $ env –help |
5. To display the version
| $ env –version |
