Windows 2000 Commands Pocket Reference

Name

if

Synopsis

A conditional command. In all cases, including the not keyword, it inverts the logical expression.

if [not] errorlevel n command

Execute command if the value of the ERRORLEVEL variable is /isn’t greater than or equal to n.

if [not] defined variable command

Execute command if the specified variable is /isn’t defined.

if [not] exist file command

Execute command if the specified file does/doesn’t exist.

if [not] [/I] string1 op string2 command

Execute command if the specified string comparison expression is true/false. The available operators are:

== | EQU

Equal.

NEQ

Not equal.

LSS

Less than.

LEQ

Less than or equal.

GTR

Greater than.

GEQ

Greater than or equal.

All operators are case-sensitive. /I says to perform a case-insensitive comparison.