How Do I Delete an Exported Environment Variable?
Before Installing Gnuplot, I Set the Environment Variable Gnuplot_Driver_Dir = /Home/Gnuplot/Build/Src. During the Installation, Something Went Wrong. I Want...
Before installing gnuplot, I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src. During the installation, something went wrong.
I want to remove the GNUPLOT_DRIVER_DIR environment variable. How can I achieve it?
5 Answers
unset is the command you're looking for.
unset GNUPLOT_DRIVER_DIR
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Walkthrough of creating and deleting an environment variable in Bash:
Test if the DUALCASE variable exists (empty output):
env | grep DUALCASE
It does not, so create the variable and export it:
DUALCASE=1
export DUALCASE
Check if it is there:
env | grep DUALCASE
Output:
DUALCASE=1
It is there. So get rid of it:
unset DUALCASE
Check if it's still there (empty output):
env | grep DUALCASE
The DUALCASE exported environment variable is deleted.
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