There are 2 ways to conditionally process commands in a batch file
IF xxx ELSE yyy - will conditionally perform a command (or a set of commands)
FOR aaa DO xxx - will conditionally perform a command several times (for a set of data, or a set of files)
Either of these can be combined with the CALL command to run a subroutine like this:
@echo off IF EXIST C:\pagefile.sys CALL :s_page_on_c IF EXIST D:\pagefile.sys CALL :s_page_on_d GOTO :eof :s_page_on_c echo pagefile found on C: drive GOTO :eof :s_page_on_d echo pagefile found on D: drive
Without the : a second batch file will be called ...
@ECHO off IF EXIST C:\pagefile.sys CALL Second_Batch.cmd
If the code does not need to return then use the GOTO statement like this:
@ECHO off IF EXIST C:\pagefile.sys GOTO s_page_on_c ECHO pagefile not found GOTO :eof :s_page_on_c ECHO pagefile found
To call a second batch file in a separate shell use CMD An important difference between CALL and CMD is the exit behaviour if an error occurs.
@ECHO off IF EXIST C:\pagefile.sys CMD /C Second_Batch.cmd
"I knew of one little DO loop that ran for 48 hours, cost $14,000 and did nothing" ~ Richard Keeler
Syntax: Parameters - Command Line Parameters %1 %~f1
Syntax: Functions - How to package blocks of code