McIDAS User's Guide
Version 2018.2

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Using the mcenv Process

Use the mcenv process to run programs, scripts, or McIDAS-X commands. When you use mcenv, you ensure that the same McIDAS environment is used for the life of the script or until you exit the mcenv process. You can enter single McIDAS-X commands or create a script with multiple McIDAS-X commands to manipulate frames, grids, and images without starting a McIDAS-X session. You can start the mcenv process from the Unix prompt, shell scripts, and the Unix scheduler cron.

The following sections describe:

• running scripts and commands using mcenv
• starting shell scripts that run mcenv
• running mcenv from cron
• passing variables into a mcenv script
• using string tables

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