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+.TH PRINTENV 1
+.CT 1 shell
+.SH NAME
+printenv \- print environment
+.SH SYNOPSIS
+.B printenv
+[
+.I name
+]
+.SH DESCRIPTION
+With no arguments,
+.I printenv
+places the strings of the environment, described in
+.IR environ (5),
+on the standard output one per line.
+.PP
+If a
+.I name
+is specified, its value is retrieved from the environment
+and printed.
+.SH SEE ALSO
+.IR sh (1),
+.IR rc (1),
+.IR environ (5),
+.IR getenv (3)
+.SH DIAGNOSTICS
+Exit status 1 is returned when a specified
+.I name
+is not present in the environment.
+.SH BUGS
+The
+.I name
+feature cannot handle functions.