while man page on BSDOS

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while(n)	      Tcl Built-In Commands		 while(n)

_________________________________________________________________

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

SYNOPSIS
       while test body
_________________________________________________________________

DESCRIPTION
       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  com-
       mands 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
       boolean value, loop, test, while

Tcl								1

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