Set an environment variable in Korn shell (ksh)

Posted October 11, 2003 by Quinn McHenry in Korn shell

An environment variable can be set and exported in the Korn shell with a single command. To set the EDITOR variable to vi, use:

export EDITOR=vi

This command can be placed in ~/.profile to be executed automatically at login, placed in a shell script, or executed manually. Exporting a variable makes it available to other shells spawned from the current shell as when running another command or shell script.

To add to an existing variable, such as path, use this format:

export PATH=$PATH:/usr/local/bin


About Quinn McHenry

Quinn was one of the original co-founders of Tech-Recipes. He is currently crafting iOS applications as a senior developer at Small Planet Digital in Brooklyn, New York.
View more articles by Quinn McHenry

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  • mikolaj

    20% text and 80% adds. The level of “tech recipe” is far too basic.

  • pratap

    how to remove the a perticular path from PATH env variable?

  • eva

    Fantastic! Your info is so good! now i’l never have to RTFM anymore. I have you, you are my friend for life!

  • Diksha

    How to assign the multiple env to the single variable…