The default list of columns may be extended if \fIlist\fP is
specified in the format \fB+\fIlist\fP (e.g. \fBlsns \-o +PATH\fP).
.TP
+.B \-\-output\-all
+Output all available columns.
+.TP
.BR \-p , " \-\-task " \fIpid\fP
Display only the namespaces held by the process with this \fIpid\fR.
.TP