Page Comparison

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The following table lists all of the statements that can be used in the Universal Data Mover scripting language.
 

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if comparison
   ...
   UDM commands
   ...
end

else

Provides an alternate path, when used as part of an if statement, if the comparison evaluates to false.
 
The syntax is:
 

if expression
...
[else
...]
end

 
In this if statement, the parameter for if is an expression.
 
If the expression evaluates to a value that is not equal to zero, the positive branch is taken; otherwise, the negative else statement branch is taken.

while

Implements a simple while loop.
 
The syntax is:
 

while expression
...
end

 
In this case, the loop iterates (executing the commands between the while and end statements) as long as the expression evaluates to a value that is not zero.
 
If the expression evaluates to a value of zero, code execution picks up at the point immediately following the end of the while loop.

fordata

Iterates through a data element, once for each line.
 
For each iteration, a variable provided by the user is set to hold the contents of the line in the data element corresponding to the current iteration.
 
The syntax is:
 

fordata variable-name=data-element
...
end

forfiles

forfiles logical_name=file_spec
         [sortby=attribute-name[,ascending|descending]]
   ...
   UDM commands
   ...
end

subroutine

Names a subroutine and defines the script code that becomes associated with that subroutine name.
 
The syntax is:
 

subroutine name
[script line 1]
...
[script line 2]
endsub

callsub

Carries out the work of lines of script associated with a subroutine.
 
The syntax is:
 

callsub name