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Connection

telnet hostname 11211
Connect to Memcached server via Telnet

nc hostname 11211
Connect to Memcached server via netcat

Basic Commands

get key
Retrieve value of key

set key flags exptime bytes [noreply]
Store key-value pair (followed by value on next line)

add key flags exptime bytes [noreply]
Add key-value if key doesn't exist

replace key flags exptime bytes [noreply]
Replace key-value if key exists

append key flags exptime bytes [noreply]
Append data to existing key

prepend key flags exptime bytes [noreply]
Prepend data to existing key

delete key [noreply]
Delete key-value pair

Statistics

stats
Show general server statistics

stats items
Show statistics about items stored

stats slabs
Show statistics about slabs

stats sizes
Show statistics about sizes

stats settings
Show server settings

stats reset
Reset statistics counters

Cache Management

flush_all [delay]
Invalidate all items (optionally after delay seconds)

version
Display server version

quit
Close connection

Increment/Decrement

incr key value
Increment key by value

decr key value
Decrement key by value

Touch

touch key exptime
Update expiration time of key

Get Operations

gets key1 [key2 ...]
Retrieve with CAS token

cas key flags exptime bytes unique_cas_token
Check and set operation