Set an environment variable in Korn shell (ksh)
Contributed by qmchenry 
Tagged: 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
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mikolaj said on February 11, 2009
20% text and 80% adds. The level of “tech recipe” is far too basic.
pratap said on March 2, 2009
how to remove the a perticular path from PATH env variable?
eva said on September 17, 2010
Fantastic! Your info is so good! now i’l never have to RTFM anymore. I have you, you are my friend for life!