tldr/pages/common/env.md

29 lines
702 B
Markdown

# env
> Show the environment or run a program in a modified environment.
> More information: <https://www.gnu.org/software/coreutils/manual/html_node/env-invocation.html>.
- Show the environment:
`env`
- Run a program. Often used in scripts after the shebang (#!) for looking up the path to the program:
`env {{program}}`
- Clear the environment and run a program:
`env -i {{program}}`
- Remove variable from the environment and run a program:
`env -u {{variable}} {{program}}`
- Set a variable and run a program:
`env {{variable}}={{value}} {{program}}`
- Set multiple variables and run a program:
`env {{variable1}}={{value}} {{variable2}}={{value}} {{variable3}}={{value}} {{program}}`