call

CALL

Call one batch program from another.

Syntax CALL [drive:][path]filename [parameters]

CALL :label [parameters] CALL internal_cmd Key: pathname The batch program to run parameters Any command-line arguments

:label Jump to a label in the current batch script. internal_cmd Any internal command, first expanding any variables in the argument

CALL a second batch file

The CALL command will launch a new batch file context along with any specified arguments.

When the end of the second batch file is reached (or if EXIT is used), control will return to just after the initial CALL statement.

CALL a subroutine (:label)

The CALL command will pass control to the statement after the label specified along with any specified arguments .

To exit the subroutine specify GOTO:eof this will transfer control to the end of the current subroutine.

Arguments can be passed either as a simple string or using a variable:

CALL MyScript.cmd "1234"

CALL OtherScript.cmd %_MyVariable%

Use a label to CALL a subroutine

A label is defined by a single colon followed by a name. This is the basis of a batch file function.

CALL :s_display_result 123

ECHO Done

GOTO :eof

:s_display_result

ECHO The result is %1

GOTO :eof

At the end of the subroutine, GOTO :eof will return to the position where you used CALL.

Example

@ECHO OFF SETLOCAL CALL :s_staff SMITH 100 GOTO s_last_bit :s_staff ECHO Name is %1 ECHO Rate is %2 GOTO :eof :s_last_bit ECHO The end of the script

Advanced usage : CALLing internal commands

In addition to the above, CALL can also be used to run any internal command (SET, ECHO etc) and also expand any environment variables passed on the same line.

For example

@ECHO off SETLOCAL set server1=frodo3 set server2=gandalf4 set server3=ascom5 set server4=last1 ::run the Loop for each of the servers call :loop server1 call :loop server2 call :loop server3 call :loop server4 goto:eof :loop set _var=%1 :: Evaluate the server name CALL SET _result=%%%_var%%% echo The server name is %_result% goto :eof :s_next_bit :: continue below :: Note the line shown in bold has three '%' symbols :: The CALL will expand this to: SET _result=%server1%

Each CALL does one substitution of the variables. (You can also do CALL CALL... for multiple substitutions)

If you CALL an executable or resource kit utility make sure it's available on the machine where the batch will be running, also check you have the latest versions of any resource kit utilities.

If Command Extensions are disabled, the CALL command will not accept batch labels.

"My mother never saw the irony in calling me a son-of-a-bitch." - Jack Nicholson

Related:

Syntax: Functions - How to package blocks of code

CMD - can be used to call a subsequent batch and ALWAYS return even if errors occur.

GOTO - jump to a label or GOTO :eof

START - Start a separate window to run a specified program or command

Equivalent bash command (Linux): . (source) - Run a command script in the current shell, builtin - Run a shell builtin