while(3Tcl)							   while(3Tcl)

NAME    [Toc]    [Back]

     while - Execute script repeatedly as long as a condition is met

SYNOPSIS    [Toc]    [Back]

     while test	body

DESCRIPTION    [Toc]    [Back]

     The while command evaluates test as an expression (in the same way	that
     expr evaluates its	argument).  The	value of the expression	must a proper
     boolean value; if it is a true value then body is executed	by passing it
     to	the Tcl	interpreter.  Once body	has been executed then test is
     evaluated again, and the process repeats until eventually test evaluates
     to	a false	boolean	value.	Continue commands may be executed inside body
     to	terminate the current iteration	of the loop, and break commands	may be
     executed inside body to cause immediate termination of the	while command.
     The while command always returns an empty string.

KEYWORDS    [Toc]    [Back]

     boolean value, loop, test,	while


									PPPPaaaaggggeeee 1111