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PRINTENV(1) General Commands Manual PRINTENV(1)

printenv
print out the environment

printenv [
name
]

printenv 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.

If a name is specified and it is not defined in the environment, printenv returns exit status 1, else it returns status 0.

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

The printenv command first appeared in 2BSD.

Bill Joy, February 1979.
January 15, 2012 OpenBSD-6.1