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### B.2.3 System

Executes commands on the local operating system. These are executed as if typed in from the shell, or command line.

exec( cmd, arg1 )
  Executes an operating system command with one argument.
exec( cmd, arg1, arg2 )
  Executes an operating system command with two arguments.
exec( cmd, arg1, arg2, arg3 )
  Executes an operating system command with three arguments.
exec( line )
  Executes a string as an operating system command. Any spaces in the string are taken to delimit words (the first word is the name of the command).

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TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@bristol.ac.uk