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Batch Script – Return code

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Return codes are the codes returned by programs when they are executed. If the command line is successful, it should return zero; if it is not successful, it should return non-zero. If the test fails, a non-zero value indicates the error number, and the user can attempt to resolve it by navigating to the error message.

The test may also return an exit code. A program’s or utility’s exit code usually appears when it finishes or terminates.

The list below includes some of the non-zero exit codes (with their respective errors) that programs may return

Error CodeDescription
0Successful completion of the program.
This error indicates that the Windows command prompt has attempted to execute an unrecognized action
2An error indicating that the file could not be found in the specified location
3An error message indicated that the specified path could not be found.
5An indication that the user is not authorized to access the resource
90090×2331This error occurs when you misspell the command, application name, or path when configuring an Action.
2212254950xC0000017-1073741801The error message tells you that Windows has run out of memory.
32212257860xC000013A-1073741510 This indicates that the user terminated the application
32212257940xC0000142-1073741502 The message indicating that the application was launched on a desktop to which the current user doesn’t have access

Batch file error level:

%ERRORLEVEL% is an environment variable that contains the last error level or return code in the batch file – that is, the last error code of the last command executed. Error levels may be checked by using the %ERRORLEVEL% variable as follows:


A common method of returning error codes from batch files is to use the command EXIT /B %ERRORLEVEL%.

For custom return codes, use the EXIT /B <exitcodes> command.


 In the below example, if the condition is met, the script will terminate with the exit code 0. If the condition isn’t met, then the exit code will be 1.

if [[ "$(whoami)" != root ]]; then
   echo "Not root user."
   exit 1
echo "root user"
exit 0




There have been statements enacted sequentially in the decision-making chapter. Alternatively, Batch Script can also be used to alter the flow of control in a program’s logic. These statements are then organized into flow control statements.

Serial NoLoopsDescription
1While Statement ImplementationThere is no direct while statement in Batch Script, although labels and an if statement can be used to implement this loop.
2For Statement – List ImplementationsBatch files can loop using the “FOR” construct. In order to work with a list of values, the ‘for’ statement requires the following construct.
3Looping through Ranges‘For’ statements can also move through ranges of values. A general version is presented below.
4Classic for Loop ImplementationIt has the classic ‘for’ statement found in many programming languages.
5Break Statement ImplementationWithin any programming language, the break statement is used to alter the flow of control inside a loop. As part of looping constructs, the break statement causes the innermost enclosing loop to terminate immediately

Looping through Command Line Arguments

For checking command-line arguments, you can use the for statement. Here is an example of how to loop through the arguments of a command line using the ‘for’ statement.

for ((c=1; c<=7; c++))
  echo "Welcome $c times"



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Last Updated : 27 Jan, 2022
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