printenv.1

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· 1 代码 · 共 26 行

.\" SCCSID: @(#)printenv.1	8.1	9/11/90
.TH printenv 1
.SH Name
printenv \- display value of a shell variable
.SH Syntax
.B printenv
[\|\fIname\fR\|]
.SH Description
.NXR "printenv command"
.NXAM "environ global variable" "printenv command"
.NXR "environment" "printing variable values"
The
.PN printenv
command
prints out the values of the variables in the environment.  If a
.I name
is specified, only its value is printed.
.PP
If a
.I name
is specified and it is not defined in the environment,
.PN printenv
returns exit status 1, else it returns status 0.
.SH See Also
csh(1), environ(7), sh(1)