Using NS3000/iX Network Services (36920-90008)

198 Chapter 8
NetCI
WHILE Statement
WHILE Statement
The WHILE statement executes commands repeatedly as long as a given
expression is true.
The WHILE statement consists of the reserved word WHILE, an
expression (condition), commands, and the reserved word ENDWHILE.
When NetCI executes a WHILE statement, the following occurs:
1. NetCI evaluates the expression which is the condition.
2. If the condition is true, it executes the subsequent commands in the
script file until ENDWHILE is encountered, and then re-evaluates the
condition. When the condition becomes false, execution resumes at
the next statement or command after ENDWHILE.
3. If the condition is false, the subsequent commands following this
condition will not execute, and flow control skips to statements or
commands after ENDWHILE.
Syntax
WHILE expression
commands
ENDWHILE
Parameters
expression Specifies the condition that determines whether the
commands following it will execute. The expression
must be in the following format:
identifier operator identifier
The identifier is a variable name, numerical value,
or known variable (set flag) in NetCI. The operator is
an equal sign (=), not equal sign (< >), greater than
sign (>), or less than (<) sign.
commands Specifies the commands to be executed provided the
expression (condition) is true.
Discussion
The INC statement may be used with the WHILE statement to increase
the value of the expression specified with WHILE. Refer to the INC
statement which was previously discussed in this section.