switch#wr t
...
!
ip rcmd rcp-enable
ip rcmd rsh-enable
ip host gate 192.168.X.1
ip rcmd remote-host root gate root enable
!

gate# apt-get install rsh-client

gate# rsh switch "sh run"

gate# rsh switch "dir flash:"

gate# cat acl1sw.conf 
...
! access-list 1 permit host 192.168.X.50
deny any

gate# rcp acl1sw.conf switch:running-config

gate# rsh switch "show access-lists"

gate# rcp switch:startup-config conf.bak

gate# rsh switch "dir flash:/"

gate# rcp switch:flash:/c2900XL-c3h2s-mz.120-5.3.WC.1.bin ios.bak 

gate# file ios.bak 
ios.bak: MS-DOS executable (EXE)