.TH TRUE 1 .SH NAME true, false \- exit with the value true or false .SH SYNOPSIS \fBtrue\fR .br \fBfalse\fR .br .de FL .TP \\fB\\$1\\fR \\$2 .. .de EX .TP 20 \\fB\\$1\\fR # \\$2 .. .SH OPTIONS (none) .SH EXAMPLES .EX "while true" "List the directory until DEL is hit" .SH DESCRIPTION .br do ls \-l .br done .PP These commands return the value .I true or .I false . They are used for shell programming. .SH "SEE ALSO" .BR sh (1).