Env: Difference between revisions
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Displays environment values. | Displays environment values. | ||
=Modify the Environment to Run a Command= | =Modify the Environment to Run a Command= | ||
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will display, among other environment variables, SOME_VAR. | will display, among other environment variables, SOME_VAR. | ||
=Use on the Shebang Line= | |||
{{External|https://www.baeldung.com/linux/bash-shebang-lines}} | |||
The <code>env</code> command works by instructing the system to look for the specified interpreter through the <code>PATH</code> variable and use the first occurrence found. | |||
Revision as of 23:51, 2 May 2023
External
Internal
Overview
Run a command with a modified environment, or just print the environment if no argument is provided.
/usr/bin/env [utility]
/usr/bin/env bash
No Argument Use
Displays environment values.
Modify the Environment to Run a Command
env SOME_VAR='some value' printenv
will display, among other environment variables, SOME_VAR.
Use on the Shebang Line
The env command works by instructing the system to look for the specified interpreter through the PATH variable and use the first occurrence found.