How to write call command in batch file conditionally?

Question

I have two lines of call command in batch file like this:

call execute.cmd
call launch.cmd

My need is to call the launch.cmd if and only if call to execute.cmd succeeds. So is there any way by which can I put some condition here?

execute.cmd does not return any value here.

score 5 · Accepted Answer · edited Jun 20 '20 at 09:12

5

If execute.cmd returns an integer than you can use a IF command to check it's return value and if it matches the desired one than you can call launch.cmd

Suppose that execute.cmd returns 0 if it is successful or an integer >= 1 otherwise. The batch would look like this:

rem call the execute command
call execute.cmd
rem check the return value (referred here as errorlevel)
if %ERRORLEVEL% ==1 GOTO noexecute
rem call the launch command
call launch.cmd

:noexecute
rem since we got here, launch is no longer going to be executed

note that the rem command is used for comments.

HTH,
JP

edited Jun 20 '20 at 09:12

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answered Aug 05 '11 at 13:05

Ioan Paul Pirau

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exceute.cmd returns 0 if it is successful and 1 if not, so problem got solved using your logic, thanks a lot. As u replied first, I'm accepting your answer, even though the answer by @jhclark looks correct. – Anand Aug 05 '11 at 13:39
@Anand K Gupta your wellcome :) – Ioan Paul Pirau Aug 05 '11 at 14:17
You may also achieve the same thing with Windows Batch && combination this way: call execute.cmd && call launch.cmd – Aacini Aug 06 '11 at 04:22

score 3 · Answer 2 · edited May 23 '17 at 12:14

I believe this is a duplicate of How do I make a batch file terminate upon encountering an error?.

Your solution here would be:

call execute.cmd
if %errorlevel% neq 0 exit /b %errorlevel%
call launch.cmd
if %errorlevel% neq 0 exit /b %errorlevel%

Unfortunately, it looks like Windows batch files have no equivalent of UNIX bash's set -e and set -o pipefail. If you're willing to abandon the very limited batch file language, you could try Windows PowerShell.

How to write call command in batch file conditionally?

2 Answers2