List Commands

LPUSH queue task1 task2 task3   # prepend (rightmost arg ends up at head)
RPUSH queue task1 task2 task3   # append

LPOP queue           # pop from head
RPOP queue           # pop from tail
LPOP queue 5         # pop up to 5 elements

LLEN queue
LINDEX queue 0       # first element
LINDEX queue -1      # last element
LSET queue 2 "new"

LRANGE queue 0 -1    # all elements
LRANGE queue 0 9     # first 10

LINSERT queue BEFORE "pivot" "new"
LINSERT queue AFTER "pivot" "new"
LREM queue 2 "value"     # remove 2 occurrences from head
LREM queue -2 "value"    # remove 2 occurrences from tail
LTRIM queue 0 99         # keep only first 100 elements

LPOS queue "task"
LPOS queue "task" RANK 2     # second occurrence
LPOS queue "task" COUNT 0    # all positions

LMOVE src dst LEFT RIGHT     # pop src head, push dst tail
LMOVE src dst RIGHT LEFT
RPOPLPUSH src dst            # alias for LMOVE RIGHT LEFT

BLPOP queue 0
BRPOP queue 0
BLMOVE src dst LEFT RIGHT 0

# Task queue
LPUSH jobs "task:123"
RPOP jobs
 
# Recent activity feed
LPUSH activity:user:1 "login"
LTRIM activity:user:1 0 99   # keep last 100