go version redis-cli
go get github.com/erpeng/godis-cli
go run godis-cli.go
when execute subscribe command ,godis-cli enters subscribe pattern(non-blocking)
[sub]> subscribe foo
in subscribe pattern,only subscribe/psubscribe/unsubscribe/punsubscribe/ping command can execute.when someone pu blish some message on channel foo,godis-cli can receive message and print it.we can exit sub pattern use exit,then we enter normal pattern.Also,we use exit exit normal pattern
>bogon:godis-cli didi$ go run godis-cli.go
> set k1 v1 //normal pattern
OK
> get k1
v1
> subscribe foo //enter sub pattern
subscribe foo 1
[sub]>subscribe foo1
subscribe foo1 2
[sub]> unsubscribe foo1
unsubscribe foo1 1
[sub]> ping
pong
[sub]> get k1 //we can't execute get in sub pattern
Redis Error: only (P)SUBSCRIBE / (P)UNSUBSCRIBE / PING / QUIT allowed in this context
[sub]> exit //exit sub pattern
exit sub pattern....
>get k1//now we can execute get in normal pattern
v1
> exit