File syntax  IF [NOT] EXIST filename command IF [NOT] EXIST filename (command) ELSE (command)  String syntax

IF [/I] item1 compare-op item2 command 
IF [/I] item1 compare-op item2 (command) ELSE (command) 
Error Check Syntax 
IF [NOT] DEFINED variable command 
IF [NOT] 
ERRORLEVEL
 number command
IF CMDEXTVERSION number command 
key 
item May be a text string or an environment variable 
a variable may be modified using either 
Substring syntax
 or 
Search syntax
 
command The command to perform
NOT perform the command if the condition is false.
== perform the command if the two strings are equal.
/I Do a case Insensitive string comparison. 
compare-op May be one of 
EQU : Equal 
NEQ : Not equal 
LSS : Less than < 
LEQ : Less than or Equal <= 
GTR : Greater than > 
GEQ : Greater than or equal >= 
This 3 digit syntax is necessary because the > and < 
symbols are recognised as redirection operators 
IF ERRORLEVEL 
n
statements should be read as IF 
Errorlevel
>=
number
i.e. 
IF ERRORLEVEL 0 will return TRUE when the errorlevel is 64 
You see things; and you say 'Why?' But I dream things that never were; and I say 'why not?' ~ 
George Bernard Shaw 
IFMEMBER
 (
Resource Kit
) 
Find out if the current user is a member of one or more workgroups. 
Syntax 
IFMEMBER [options] WorkGroup [ WorkGroup2 WorkGroup3...] 
Options: 
/verbose or /v : print all matches. 
/list or /l : print all groups user is a member of 
The %ERRORLEVEL% return code shows how many of the listed workgroups the currently 
logged-in user is a member of.

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