tail head cat sleep
QR code linking to this page

Manual Pages  — PRINTENV


printenv – print out the environment



printenv [name]


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.


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


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


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.


The printenv command appeared in BSD 3.0 .

PRINTENV (1) May 12, 2003

tail head cat sleep
QR code linking to this page

Please direct any comments about this manual page service to Ben Bullock. Privacy policy.

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.”