child_process.execFileSync(file[, args][, options])
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file<String> The name or path of the executable file to run -
args<Array> List of string arguments -
options<Object>-
cwd<String> Current working directory of the child process -
input<String> | <Buffer> The value which will be passed as stdin to the spawned process- supplying this value will override
stdio[0]
- supplying this value will override
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stdio<Array> Child's stdio configuration. (Default: 'pipe')-
stderrby default will be output to the parent process' stderr unlessstdiois specified
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env<Object> Environment key-value pairs -
uid<Number> Sets the user identity of the process. (See setuid(2).) -
gid<Number> Sets the group identity of the process. (See setgid(2).) -
timeout<Number> In milliseconds the maximum amount of time the process is allowed to run. (Default: undefined) -
killSignal<String> The signal value to be used when the spawned process will be killed. (Default: 'SIGTERM') -
maxBuffer<Number> largest amount of data (in bytes) allowed on stdout or stderr - if exceeded child process is killed -
encoding<String> The encoding used for all stdio inputs and outputs. (Default: 'buffer')
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- return: <Buffer> | <String> The stdout from the command
The child_process.execFileSync() method is generally identical to child_process.execFile() with the exception that the method will not return until the child process has fully closed. When a timeout has been encountered and killSignal is sent, the method won't return until the process has completely exited. Note that if the child process intercepts and handles the SIGTERM signal and does not exit, the parent process will still wait until the child process has exited.
If the process times out, or has a non-zero exit code, this method will throw. The Error object will contain the entire result from child_process.spawnSync()
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