command descriptions for six include files

source/includes/ref-toc-command-aggregation.yaml

@@ -1,20 +1,20 @@
 name: ":dbcommand:`aggregate`"
 file: /reference/command/aggregate
-description: ""
+description: "Performs a query using the :doc:`aggregation framework </core/aggregation>` pipeline."
 ---
 name: ":dbcommand:`count`"
 file: /reference/command/count
-description: ""
+description: "Counts the number of documents in a collection."
 ---
 name: ":dbcommand:`distinct`"
 file: /reference/command/distinct
-description: ""
+description: "Displays the distinct values found for a specified key in a collection."
 ---
 name: ":dbcommand:`group`"
 file: /reference/command/group
-description: ""
+description: "Groups documents in a collection by the specified key and performs simple aggregation."
 ---
 name: ":dbcommand:`mapReduce`"
 file: /reference/command/mapReduce
-description: ""
+description: "Performs map-reduce style data aggregation."
 ...

source/includes/ref-toc-command-authentication.yaml

@@ -1,16 +1,16 @@
 name: ":dbcommand:`logout`"
 file: /reference/command/logout
-description: ""
+description: "Terminates the current authenticated session."
 ---
 name: ":dbcommand:`authenticate`"
 file: /reference/command/authenticate
-description: ""
+description: "Starts an authenticated session using a username and password."
 ---
 name: ":dbcommand:`copydbgetnonce`"
 file: /reference/command/copydbgetnonce
-description: ""
+description: "This is an internal command to generate a one-time password for use with the :dbcommand:`copydb` command."
 ---
 name: ":dbcommand:`getnonce`"
 file: /reference/command/getnonce
-description: ""
+description: "This is an internal command to generate a one-time password for authentication."
 ...

source/includes/ref-toc-command-crud.yaml

@@ -1,24 +1,24 @@
 name: ":dbcommand:`findAndModify`"
 file: /reference/command/findAndModify
-description: ""
+description: "Returns and modifies a single document."
 ---
 name: ":dbcommand:`text`"
 file: /reference/command/text
-description: ""
+description: "Performs a text search."
 ---
 name: ":dbcommand:`getLastError`"
 file: /reference/command/getLastError
-description: ""
+description: "Returns the success status of the last operation."
 ---
 name: ":dbcommand:`getPrevError`"
 file: /reference/command/getPrevError
-description: ""
+description: "Returns status document containing all errors since the last :dbcommand:`resetError` command."
 ---
 name: ":dbcommand:`resetError`"
 file: /reference/command/resetError
-description: ""
+description: "Resets the last error status."
 ---
 name: ":dbcommand:`eval`"
 file: /reference/command/eval
-description: ""
+description: "Runs a JavaScript function on the database server."
 ...

source/includes/ref-toc-command-diagnostic.yaml

@@ -1,102 +1,100 @@
 name: ":dbcommand:`listDatabases`"
 file: /reference/command/listDatabases
-description: ""
+description: "Provides a list of databases and basic database statistics."
 ---
 name: ":dbcommand:`dbHash`"
 file: /reference/command/dbHash
-description: ""
+description: "This is an internal command."
 ---
 name: ":dbcommand:`driverOIDTest`"
 file: /reference/command/driverOIDTest
-description: ""
+description: "This is an internal command."
 ---
 name: ":dbcommand:`listCommands`"
 file: /reference/command/listCommands
-description: ""
+description: "Lists all database commands implemented for the current :program:`mongod` instance."
 ---
 name: ":dbcommand:`availableQueryOptions`"
 file: /reference/command/availableQueryOptions
-description: ""
+description: "This is an internal command available only on :program:`mongos` instances."
 ---
 name: ":dbcommand:`buildInfo`"
 file: /reference/command/buildInfo
-description: ""
+description: "Displays statistics about the MongoDB build."
 ---
 name: ":dbcommand:`collStats`"
 file: /reference/command/collStats
-description: ""
+description: "Displays statistics about a specified collection."
 ---
 name: ":dbcommand:`connPoolStats`"
 file: /reference/command/connPoolStats
-description: ""
+description: "Displays statistics about open connections to the current database instance."
 ---
 name: ":dbcommand:`dbStats`"
 file: /reference/command/dbStats
-description: ""
+description: "Displays storage statistics for the database."
 ---
 name: ":dbcommand:`cursorInfo`"
 file: /reference/command/cursorInfo
-description: ""
+description: "Displays statistics about the numbers of cursors used."
 ---
 name: ":dbcommand:`dataSize`"
 file: /reference/command/dataSize
-description: ""
+description: "This is an internal command that returns data size for a set of data within a given range."
 ---
 name: ":dbcommand:`diagLogging`"
 file: /reference/command/diagLogging
-description: ""
+description: "This is an internal command that obtains a write lock on a database and blocks other operations."
 ---
 name: ":dbcommand:`getCmdLineOpts`"
 file: /reference/command/getCmdLineOpts
-description: ""
+description: "Displays the command-line options used to start the current :program:`mongod` process."
 ---
 name: ":dbcommand:`netstat`"
 file: /reference/command/netstat
-description: ""
+description: "This is an internal command available only on :program:`mongos` instances."
 ---
 name: ":dbcommand:`ping`"
 file: /reference/command/ping
-description: ""
+description: "Tests whether a server is responding to commands."
 ---
 name: ":dbcommand:`profile`"
 file: /reference/command/profile
-description: ""
+description: "Modifies the current level of database profiling."
 ---
 name: ":dbcommand:`validate`"
 file: /reference/command/validate
-description: ""
+description: "Scans for a collection's data and indexes for correctness."
 ---
 name: ":dbcommand:`top`"
 file: /reference/command/top
-description: ""
+description: "Returns raw usage statistics for each database in the :program:`mongod` instance."
 ---
 name: ":dbcommand:`indexStats`"
 file: /reference/command/indexStats
-description: ""
+description: "Aggregates statistics for the B-tree data structure that stores data for a MongoDB index."
 ---
 name: ":dbcommand:`whatsmyuri`"
 file: /reference/command/whatsmyuri
-description: ""
+description: "This is an internal command."
 ---
 name: ":dbcommand:`getLog`"
 file: /reference/command/getLog
-description: ""
+description: "Displays recent messages from MongoDB's log."
 ---
 name: ":dbcommand:`hostInfo`"
 file: /reference/command/hostInfo
-description: ""
+description: "Displays information about the underlying system MongoDB runs on."
 ---
 name: ":dbcommand:`serverStatus`"
 file: /reference/command/serverStatus
-description: ""
+description: "Provides detailed statistics on the state of the database process."
 ---
 name: ":dbcommand:`features`"
 file: /reference/command/features
-description: ""
+description: "This is an internal command that returns the build-level feature settings."
 ---
 name: ":dbcommand:`isSelf`"
 file: /reference/command/isSelf
-description: ""
+description: "This is an internal command."
 ...
-
-

source/includes/ref-toc-command-geospatial.yaml

@@ -1,12 +1,12 @@
 name: ":dbcommand:`geoNear`"
 file: /reference/command/geoNear
-description: ""
+description: "Performs a geospatial query that returns the 100 documents closest to a given point."
 ---
 name: ":dbcommand:`geoSearch`"
 file: /reference/command/geoSearch
-description: ""
+description: "Performs a geospatial query that uses MongoDB's :term:`haystack index` functionality."
 ---
 name: ":dbcommand:`geoWalk`"
 file: /reference/command/geoWalk
-description: ""
+description: "This is an internal command."
 ...

source/includes/ref-toc-command-replication.yaml

@@ -1,44 +1,44 @@
 name: ":dbcommand:`replSetFreeze`"
 file: /reference/command/replSetFreeze
-description: ""
+description: "Prevents the current member from seeking election as :term:`primary` for a period of time."
 ---
 name: ":dbcommand:`replSetGetStatus`"
 file: /reference/command/replSetGetStatus
-description: ""
+description: "Displays the status of the replica set."
 ---
 name: ":dbcommand:`replSetInitiate`"
 file: /reference/command/replSetInitiate
-description: ""
+description: "Initializes a new replica set."
 ---
 name: ":dbcommand:`replSetMaintenance`"
 file: /reference/command/replSetMaintenance
-description: ""
+description: "Enables or disables the maintenance mode and `RECOVERING`` state for a :term:`secondary`."
 ---
 name: ":dbcommand:`replSetReconfig`"
 file: /reference/command/replSetReconfig
-description: ""
+description: "Modifies the configuration of a replica set."
 ---
 name: ":dbcommand:`replSetStepDown`"
 file: /reference/command/replSetStepDown
-description: ""
+description: "Forces the primary to become a secondary, which initiates election for primary."
 ---
 name: ":dbcommand:`replSetSyncFrom`"
 file: /reference/command/replSetSyncFrom
-description: ""
+description: "Explicitly sets the host that this replica set member will sync from, overriding the default."
 ---
 name: ":dbcommand:`resync`"
 file: /reference/command/resync
-description: ""
+description: "This is for master-slave replication only. This forces a :program:`mongod` to re-synchronize."
 ---
 name: ":dbcommand:`applyOps`"
 file: /reference/command/applyOps
-description: ""
+description: "This is an internal command that applies :term:`oplog` entries."
 ---
 name: ":dbcommand:`isMaster`"
 file: /reference/command/isMaster
-description: ""
+description: "Displays information about this member's role in the replica set, including whether it is the master."
 ---
 name: ":dbcommand:`getoptime`"
 file: /reference/command/getoptime
-description: ""
+description: "This is an internal command."
 ...