kdb set <key name> [<value>]

Where key name is the name of the key you wish to set the value of (or create) and value is the value you would like to set the key to. If the value argument is not passed, the key will be set to a value of null.

This command allows the user to set the value of an individual key.

To set a key to an empty value, "" should be passed for the value argument.

To set a key to a negative value, -- has to be used to stop option processing. (see example below)

-H, --help: Show the man page.
-V, --version: Print version info.
-p, --profile <profile>: Use a different kdb profile.
-C, --color <when>: Print never/auto(default)/always colored output.
-q, --quiet: Suppress non-error messages.
-N, --namespace=NS: Specify the namespace to use when writing cascading keys. See below in KDB.
--: Do not process any following arguments starting with - as options.
-v, --verbose: Explain what is happening. Prints additional information in case of errors/warnings.
-d, --debug: Give debug information. Prints additional debug information in case of errors/warnings.

/sw/elektra/kdb/#0/current/verbose: Same as -v: Explain what is happening.
/sw/elektra/kdb/#0/current/quiet: Same as -q: Suppress default messages.
/sw/elektra/kdb/#0/current/namespace: Specifies which default namespace should be used when setting a cascading name. By default the namespace is user, except kdb is used as root, then system is the default.

To set a Key to the value Hello World!:
kdb set user:/example/key "Hello World!"

To create a new key with a null value:
kdb set user:/example/key

To set a key to an empty value:
kdb set user:/example/key ""

To set a key to a negative value:
kdb set -- /tests/neg -3

To create bookmarks:
kdb set user:/sw/elektra/kdb/#0/current/bookmarks

Followed by:
kdb set user:/sw/elektra/kdb/#0/current/bookmarks/kdb user:/sw/elektra/kdb/#0/current

kdb(1) for how to configure the kdb utility and use the bookmarks.
elektra-key-names(7) for an explanation of key names.
elektra-values(7) for the difference between empty and null values.