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Diffstat (limited to 'Help/command/unset.rst')
| -rw-r--r-- | Help/command/unset.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Help/command/unset.rst b/Help/command/unset.rst new file mode 100644 index 000000000..a1fc95cc6 --- /dev/null +++ b/Help/command/unset.rst @@ -0,0 +1,25 @@ +unset +----- + +Unset a variable, cache variable, or environment variable. + +:: + + unset(<variable> [CACHE | PARENT_SCOPE]) + +Removes the specified variable causing it to become undefined. If +``CACHE`` is present then the variable is removed from the cache instead +of the current scope. + +If ``PARENT_SCOPE`` is present then the variable is removed from the scope +above the current scope. See the same option in the :command:`set` command +for further details. + +``<variable>`` can be an environment variable such as: + +:: + + unset(ENV{LD_LIBRARY_PATH}) + +in which case the variable will be removed from the current +environment. |