# 22. Virtuoso Functions Guide - system

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## system

runs a shell command from SQL
system (in command varchar);
Description

The system function will run a shell command from SQL. The shell command is executed in the server's current directory as the user that owns the database server process.

This function is available to dba users only. Since this is a security risk this feature is normally disabled. It can be enabled by setting the AllowOSCalls setting in virtuoso.ini to 1.