$BatchInput

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`$BatchInput`

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is True if input in the current session is being fed directly to the Wolfram Language kernel in batch mode.

Details

$BatchInput is True if input is being taken from a file.
$BatchInput can be reset during a Wolfram System session.
When $BatchInput is True, the Wolfram System terminates if it ever receives an interrupt, does not discard input when blank lines are given, and terminates when it receives end‐of‐file.

Examples

Basic Examples (2)Summary of the most common use cases

In an interactive session, $BatchInput is False by default:

In[1]:=1

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https://wolfram.com/xid/0btpqqu3hazy-bfavwf

Out[1]=1

Run a standalone Wolfram Language kernel with an input file:

In[1]:=1

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https://wolfram.com/xid/0btpqqu3hazy-exopde

In[2]:=2

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https://wolfram.com/xid/0btpqqu3hazy-dt9mj2

Out[2]=2

In[3]:=3

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https://wolfram.com/xid/0btpqqu3hazy-c3zs0b

Out[3]=3

Put commands in a file, in this case to evaluate $BatchInput:

In[4]:=4

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https://wolfram.com/xid/0btpqqu3hazy-cv0cpe

Out[4]=4

In[5]:=5

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https://wolfram.com/xid/0btpqqu3hazy-fqsh8y

Run the command. The session terminates at the end of the file:

In[6]:=6

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https://wolfram.com/xid/0btpqqu3hazy-y1h5v

Out[6]=6

The output file contains the value of $BatchInput:

In[7]:=7

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https://wolfram.com/xid/0btpqqu3hazy-g221kr

Delete the temporary files:

In[8]:=8

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https://wolfram.com/xid/0btpqqu3hazy-h4s8dg

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