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Manual Pages  — PRINTENV

NAME

printenv – print out the environment

CONTENTS

SYNOPSIS


printenv [name]

DESCRIPTION

The printenv utility prints out the names and values of the variables in the environment, with one name/value pair per line. If name is specified, only its value is printed.

Some shells may provide a builtin printenv command which is similar or identical to this utility. Consult the builtin(1) manual page.

EXIT STATUS

The utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

csh(1), env(1), sh(1), environ(7)

STANDARDS

The printenv utility is provided for compatibility with earlier BSD and FreeBSD releases and is not specified by any standards. The functionality of printenv can be duplicated with the echo(1) and env(1) utilities.

HISTORY

The printenv command appeared in BSD 3.0 .

PRINTENV (1) May 12, 2003

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Ken Thompson has an automobile which he helped design. Unlike most automobiles, it has neither speedometer, nor gas gauge, nor any of the other numerous idiot lights which plague the modern driver. Rather, if the driver makes a mistake, a giant “?” lights up in the center of the dashboard. “The experienced driver,” says Thompson, “will usually know what's wrong.”