---
name: "Env"
section: "3pm"
platform: "linux"
package: "perl-5.004-doc"
version: "5.004.05-6"
release: "Debian 2.2 (Potato)"
platforms: ["linux"]
url: "https://new.carta.tech/Env/3pm"
---

# Env(3pm)

perl module that imports environment variables

## NAME

Env - perl module that imports environment variables

## SYNOPSIS

```
    use Env;
    use Env qw(PATH HOME TERM);
```

## DESCRIPTION

Perl maintains environment variables in a pseudo-hash named `%ENV`.  For when this access method is inconvenient, the Perl module `Env` allows environment variables to be treated as simple variables.

The *Env::import()* function ties environment variables with suitable names to global Perl variables with the same names.  By default it does so with all existing environment variables (`keys %ENV`).  If the import function receives arguments, it takes them to be a list of environment variables to tie; it's okay if they don't yet exist.

After an environment variable is tied, merely use it like a normal variable. You may access its value

```
    @path = split(/:/, $PATH);
```

or modify it

```
    $PATH .= ":.";
```

however you'd like. To remove a tied environment variable from the environment, assign it the undefined value

```
    undef $PATH;
```

## AUTHOR

Chip Salzenberg \<*chip@fin.uucp*\>