Table 12. Help commands
Command Purpose
ping
[-c count] [-i interval] [-n] [-s packetsize] [-W waittime] —
Sends ICMP ECHO_REQUEST packets to a network host. If
it is "gw", then the next hop gateway for the default route
is used. It works like the ping command on other operating
systems. Press <Clrt> + <C> to stop the ping process or halt
any other command in CROSH.
ssh
[optional args...] — Starts the ssh subsystem if invoked
without any arguments. "ssh <user> <host>", "ssh
<user> <host> <port>", "ssh< user>@<host>". or "ssh
<user>@<host> <port>" connect without entering the
subsystem
ssh_forget_host
Removes a host from the list of known ssh hosts. This
command displays a menu of known hosts and prompts for
the host to forget.
top
Sets the chaps debug logging level. No arguments start
verbose logging
Table 13. Advanced help command
Command Purpose
battery_test[<test length>] Tests the battery discharge rate for a given number of
seconds. No argument defaults to a 300 s test.
bt_console [<agent capability>] Enters a Bluetooth debugging console. The Optional
argument specifies the capability of a pairing agent the
console provides; see the Bluetooth Core specification for
valid options.
chaps_debug [start|stop|<log_level>] Sets the chaps debug logging level. No arguments will start
verbose logging.
connectivity
Shows connectivity status.
experimental_storage<status|enable|disable> Enables or disables experimental storage features.
ff_debug [<tag_expr>] [--help] [--list_valid_tags] [--reset] Adds and removes flimflam debugging tags.
memory_test
Performs extensive memory testing on the available free
memory.
modem <command> [args...] Interacts with the 3G modem. Run modem help for detailed
help.
modem_set_carrier carrier-name
Configures the modem for the specified carrier.
network_diag[--date] [--link] [--show-macs] [--wifi] [--
help] [--wifi-mon] <host>
Performs a suite of network diagnostics and saves a copy of
the output to your download directory
network_logging <wifi|cellular|ethernet> Enables a predefined set of tags useful for debugging the
specified device.
p2p_update [enable | disable] Enables or disables the peer-to-peer (P2P) sharing of updates
over the local network. This will both attempt to get updates
from other peers in the network and shares the downloaded
updates with them. Run this command without arguments to
see the current state.
rlz < status | enable | disable> Enables or disables RLZ.
rollback
Attempts to roll back to the previous update cached on
your system. Only available on non-stable channels and non-
enterprise enrolled devices. Please note that this will power
wash your device.
74 Troubleshooting
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