Skip to content

Instantly share code, notes, and snippets.

@izzqz

izzqz/help_advanced.txt

Last active October 13, 2023 18:43
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save izzqz/cd1abd5ead4081d1c9b7d08452a089f6 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save izzqz/cd1abd5ead4081d1c9b7d08452a089f6 to your computer and use it in GitHub Desktop.
Download ZIP
help_advanced output from chrosh terminal
Raw
help_advanced.txt
Usage: arc
[ ping [ NETWORK ] [ <ip address> | <hostname> ] |
http [ NETWORK ] <url> |
dns [ NETWORK ] <domain> |
proxy <url> |
list [ networks ] |
stats [ sockets | traffic ]
]
where NETWORK := [ wifi | eth | ethernet | cell | cellular | vpn ]
ping: check the reachability of a host or IP address.
http: do a GET request to an URL and print the response header.
dns: perform a DNS lookup of a domain name.
proxy: resolve the current proxy configuration for a given URL.
list networks: show properties of all networks connected in Android.
stats sockets: show TCP connect and DNS statistics by Android Apps.
stats traffic: show traffic packet statistics by Android Apps.
If NETWORK is not specified, the default network is used.
autest [--scheduled]
Trigger an auto-update against a **test** update server.
WARNING: This may update to an untested version of ChromeOS which was never
intended for end users!
The --scheduled option fakes a scheduled update.
authpolicy_debug <level>
Set authpolicy daemon debugging level.
<level> can be 0 (quiet), 1 (taciturn), 2 (chatty), or 3 (verbose).
battery_firmware <info>
info : Query battery info.
battery_test [<test length>]
Tests battery discharge rate for given number of seconds. Without an argument,
defaults to 300 seconds.
Enters a Bluetooth debugging console.
builtin_corpssh
[Deprecated] Enable or disable CorpSSH support for the built-in gnubby.
This is now always enabled, and the command will be removed soon.
ccd_pass
When prompted, set or clear CCD password (use the word 'clear' to clear
the password).
chaps_debug [start|stop|<log_level>]
Sets the chapsd logging level. No arguments will start verbose logging.
connectivity
Shows connectivity status. "connectivity help" for more details
cras [ enable <flag> | disable <flag> | telephony <event> [arg] ]
Interact with CRAS(CrOS Audio Server) to set flags or trigger events.
Subcommands:
enable/disable <flag>:
Enable or disable feature flag inside CRAS.
Available flags:
- wbs: Turn on this flag to make CRAS try to use wideband speech mode in
Bluetooth HFP, if both the Bluetooth controller and peripheral supports
this feature.
- noise_cancellation: Turn on this flag to enable noise cancellation
processing to input devices who support noise cancellation.
Notice: The flag changes made through this command do not persist after
reboot.
telephony <event> [args...]:
Trigger a telephony event pass to CRAS in Bluetooth HFP.
Available events:
- IncomingCall <PhoneNumber>: Make a call from external line.
Ex: $ cras telephony IncomingCall 12345678
- AnswerCall: Answer the call.
- TerminateCall: Terminate the call.
- SetDialNumber [DailNumber]: Set the last dialed number recorded. Clear
the recorded number if no DailNumber is provided.
- SetBatteryLevel <BatteryLevel>: Set and transfer the battery level to
HF. The BatteryLevel should range from 0 to 5.
- SetSignalStrength <SignalStrength>: Set and transfer the signal strength
to HF. The SignalStrength should range from 0 to 5.
- SetServiceAvailability <0/1>: Set if the service is available or not.
- SetCallheld <CallHeldIndicator>: Set the callheld indicator.
CallHeldIndicator:
0 = No calls held
1 = Call is placed on hold or active/held calls swapped
(The AG has both an active AND a held call)
2 = Call on hold, no active call
- SetCallsetup <CallSetupIndicator>: Set the callsetup indicator.
CallSetupIndicator:
0 = No call setup in progress
1 = Incoming call setup in progress
2 = Outgoing call setup in dialing state
3 = Outgoing call setup in alerting state
- SetCall <CallIndicator>: Set the call indicator.
CallIndicator:
0 = No call (held or active)
1 = Call is present (active or held)
diag
Usage: [list|routine]
display_debug
A tool to assist with collecting logs when reproducing display related issues.
Subcommands:
trace_start Usage: display_debug trace_start
Increase size and verbosity of logging through drm_trace.
trace_stop Usage: display_debug trace_stop
Reset size and verbosity of logging through drm_trace to defaults.
trace_annotate Usage: display_debug trace_annotate <message>
Append |message| to the drm_trace log.
diagnose Usage: display_debug diagnose
Give a sequence of steps to assist in debugging display issues.
dlc_install <dlc-id>
Trigger a DLC installation against a **test** update server.
The **test** update server will serve signed DLC payloads which will only
successfully install if signed and verifiable. Otherwise, installations will
fail. The magical string 'autest' is passed into update_engine during this
installation, which will make requests against QA Omaha server and not the
production Omaha server.
WARNING: This may install an untested version of the DLC which was never
intended for end users!
Usage: dmesg [options]
-d, --show_delta
Display the timestamp and the time delta
spent between messages
-H, --human
Enable human-readable output.
-k, --kernel
Print kernel messages.
-L, --color
Colorize the output.
-p, --force-prefix
Add facility, level or timestamp
information to each line of a multi-line message.
-r, --raw
Print the raw message buffer.
-T, --ctime
Print human-readable timestamps.
-t, --notime
Do not print kernel's timestamps.
-u, --userspace
Print userspace messages.
-x, --decode
Decode facility and level (priority) numbers
to human-readable prefixes.
dump_emk
Show the EMK (Enterprise Machine Key).
enroll_status [--mode] [--domain] [--realm] [--user]
Displays device enrollment information.
evtest
Run evtest in safe mode.
help: unknown command 'exit'
ff_debug
Usage: ff_debug [<tag_expression>]|[--reset]|[--help]|[--list_valid_tags]|[--level <level>]
ff_debug adds and removes debug tags for flimflam.
Current debug settings are displayed if no parameters are provided
<tag_expression> is defined in boolean notation using <debug_tag> separated
by an operator [+-], where + and - imply adding and removing of the tag immediately
following the operator. An expression beginning with either operators [+-]
takes the existing tags and modifies them appropriately. Otherwise, the existing tags
are replaced by those specified in the command.
<debug_tag> can be listed using the --list_valid_tags
e.g.: ff_debug network+wifi
Sets debug tags to network and wifi
e.g.: ff_debug +network-service
Adds network and removes service tags from the existing debug settings
--list_valid_tags : Displays all valid tags
--level: Displays or sets current debug level for logging
All messages at, or above, the current log level are logged. Normal log
levels range from 4 (LOG_FATAL) to 0 (LOG_INFO). In addition VERBOSE log
levels are available starting at -1.
e.g.: ff_debug --level 4
Logs only FATAL messages.
e.g.: ff_debug --level 0
Logs INFO, WARNING, ERROR, ERROR_REPORT, and FATAL messages.
e.g.: ff_debug --level -4
Logs everything that "--level 0" does, plus SLOG(<tag>, <n>) messages,
where <tag> has been enabled for logging, and <n> <= 4. (NOTE: you must
negate SLOG levels for use with ff_debug. In this example, SLOG(<tag>, 4)
maps to "--level -4".)
--reset : Removes all tagging
--help : Displays this output
free [options]
Display free/used memory info
gesture_prop [ devices | list <device ID> | get <device ID> <property name> | set <device ID> <property name> <value> ]
Read and change gesture properties for attached input devices. The "Enable
gesture properties D-Bus service" flag must be enabled for this command to
work.
For more details, see:
https://chromium.googlesource.com/chromiumos/platform/gestures/+/HEAD/docs/gesture_properties.md
Subcommands:
devices, devs:
List the devices managed by the gestures library, with their numeric IDs.
list <device ID>:
List the properties for the device with the given ID.
get <device ID> <property name>:
Get the current value of a property. Property names containing spaces
should be quoted. For example:
$ gesture_prop get 12 "Mouse CPI"
set <device ID> <property name> <value>:
Set the value of a property. Values use the same syntax as dbus-send
(https://dbus.freedesktop.org/doc/dbus-send.1.html#description), and
should either be arrays or strings. For example:
$ gesture_prop set 12 "Mouse CPI" array:double:500
$ gesture_prop set 12 "Log Path" string:/tmp/foo.txt
help [command]
Display general help, or details for a specific command.
help_advanced
Display the help for more advanced commands, mainly used for debugging.
Usage: hibernate [options]
Options:
-n, --no-delay skip the delay before initiating the hibernation.
ipaddrs [-4] [-6]
Display IP addresses.
-4: Only show IPv4 addresses.
-6: Only show IPv6 addresses.
meminfo
Display detailed memory statistics
memory_test
Performs extensive memory testing on the available free memory.
modem <command> [args...]
Interact with the 3G modem. Run "modem help" for detailed help.
network_diag
This command is disabled pending removal.
Please see https://issuetracker.google.com/267537630
p2p_update [enable|disable] [--num-connections] [--show-peers]
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 share the downloaded updates with them. Run this command without
arguments to see the current state. Additional switches will display number
of connections and P2P peers.
Usage: packet_capture [options]
--device <device>
--max-size <max size in MiB>
--frequency <frequency>
--ht-location <above|below>
--vht-width <80|160>
--monitor-connection-on <monitored_device>
Start packet capture. Start a device-based capture on <device>,
or do an over-the-air capture on <frequency> with an optionally
provided HT channel location or VHT channel width. An over-the-air
capture can also be initiated using the channel parameters of a
currently connected <monitored_device>. Note that over-the-air
captures are not available with all 802.11 devices. Set <max_size>
to stop the packet capture if the output .pcap file size exceedes this
limit. Only device-based capture options (--device and --max-size) are
available in verified mode. Switch to developer mode to use other
options.
ping [-4] [-6] [-c count] [-i interval] [-n] [-s packetsize] [-W waittime] <destination>
Send ICMP ECHO_REQUEST packets to a network host. If <destination> is "gw"
then the next hop gateway for the default route is used.
Default is to use IPv4 [-4] rather than IPv6 [-6] addresses.
printscan_debug
A tool to assist with collecting logs when reproducing printing and scanning related issues.
Subcommands:
start Usage: printscan_debug start [all|scanning|printing]
Start collecting printscan debug logs.
stop Usage: printscan_debug stop
Stop collecting printscan debug logs.
rlz < status | enable | disable >
Enable or disable RLZ. See this site for details:
http://dev.chromium.org/developers/design-documents/extensions/proposed-changes/apis-under-development/rlz-api
rollback
Attempt to rollback to the previous update cached on your system. Only
available on non-stable channels and non-enterprise enrolled devices.
Please note that this will powerwash your device.
route [-4] [-6] [--all]
Display the routing tables.
-4: Only show IPv4 routes.
-6: Only show IPv6 routes.
--all: Show all routing tables.
set_apn [-c] [-n <network-id>] [-u <username>] [-p <password>] <apn>
Set the APN to use when connecting to the network specified by <network-id>.
If <network-id> is not specified, use the network-id of the currently
registered network.
The -c option clears the APN to be used, so that the default APN will be used
instead.
set_arpgw <true | false>
Turn on extra network state checking to make sure the default gateway
is reachable.
set_cellular_ppp [-c] [-u <username>] [-p <password>]
Set the PPP username and/or password for an existing cellular connection.
If neither -u nor -p is provided, show the existing PPP username for
the cellular connection.
The -c option clears any existing PPP username and PPP password for an
existing cellular connection.
set_time <time string>
Sets the system time if the the system has been unable to get it from the
network. The <time string> uses the format of the GNU coreutils date command.
set_wake_on_lan <true | false>
Enable or disable Wake on LAN for Ethernet devices. This command takes
effect after re-connecting to Ethernet and is not persistent across system
restarts.
storage_test_1
Performs a short offline SMART test.
storage_test_2
Performs an extensive readability test.
swap [ enable <size (MB)> | disable | start | stop | status ]
Change kernel memory manager parameters
(FOR EXPERIMENTS ONLY --- USE AT OWN RISK)
"swap status" (also "swap" with no arguments) shows the values of various
memory manager parameters and related statistics.
The enable/disable options enable or disable compressed swap (zram)
persistently across reboots, and take effect at the next boot. The enable
option takes the size of the swap area (in megabytes before compression).
If the size is omitted, the factory default is chosen.
The start/stop options turn swap on/off immediately, but leave the settings
alone, so that the original behavior is restored at the next boot.
WARNING: if swap is in use, turning it off can cause the system to
temporarily hang while the kernel frees up memory. This can take
a long time to finish.
sync
Run the sync command
syslog <message>
Logs a message to syslog (the system log daemon).
time_info
Returns the current synchronization state for the time service.
top
Run top.
tracepath [-4] [-6] [-n] <destination>[/port]
Trace the path/route to a network host.
Default is to trace IPv4 [-4] rather than IPv6 [-6] targets.
u2f_flags <u2f | g2f>[, user_keys, verbose]
### IMPORTANT: The U2F feature is experimental and not suitable for
### general production use in its current form. The current
### implementation is still in flux and some features (including
### security-relevant ones) are still missing. You are welcome to
### play with this, but use at your own risk. You have been warned.
Set flags to override the second-factor authentication daemon configuration.
u2f: Always enable the standard U2F mode even if not set in device policy.
g2f: Always enable the U2F mode plus some additional extensions.
user_keys: Enable user-specific keys.
verbose: Increase the daemon logging verbosity in /var/log/messages.
uname [-a|-s|-n|-r|-v|-m|-p|-i|-o]
Display system info
upload_crashes
Uploads available crash reports to the crash server.
upload_devcoredumps [enable|disable]
Enable or disable the upload of devcoredump reports.
uptime
Display uptime/load info
verify_ro
Verify AP and EC RO firmware on a ChromeOS device connected over SuzyQ
cable, if supported by the device.
USAGE: vmc
[ start [--enable-gpu] [--enable-dgpu-passthrough] [--enable-vulkan] [--enable-big-gl] [--enable-virtgpu-native-context] [--enable-audio-capture] [--untrusted] [--extra-disk PATH] [--kernel PATH] [--initrd PATH] [--writable-rootfs] [--kernel-param PARAM] [--bios PATH] [--timeout PARAM] [--oem-string STRING] <name> |
stop <name> |
launch <name> |
create [-p] [--size SIZE] <name> [<source media> [<removable storage name>]] [-- additional parameters] |
create-extra-disk --size SIZE [--removable-media] <host disk path> |
adjust <name> <operation> [additional parameters] |
destroy [-y] <name> |
disk-op-status <command UUID> |
export [-d] [-f] <vm name> <file name> [<removable storage name>] |
import [-p] <vm name> <file name> [<removable storage name>] |
resize <vm name> <size> |
list |
logs <vm name> |
share <vm name> <path> |
unshare <vm name> <path> |
container <vm name> <container name> [ (<image server> <image alias>) | (<rootfs path> <metadata path>)] [--privileged <true/false>] [--timeout PARAM] |
update-container-devices <vm_name> <container_name> (<vm device>:<enable/disable>)... |
usb-attach <vm name> <bus>:<device> [<container name>] |
usb-detach <vm name> <port> |
usb-list <vm name> |
pvm.send-problem-report [-n <vm name>] [-e <reporter's email>] <description of the problem> |
--help | -h ]
vmstat [-a|-d|-f|-m|-n|-s|-w] [delay [count]]
Report virtual memory statistics
vsh <vm_name> [<container_name>]
Connect to a shell inside the VM <vm_name>, or to a shell inside the container
<container_name> within the VM <vm_name>.
wifi_fw_dump
Manually trigger a WiFi firmware dump. This command will currently only
complete successfully if the intel-wifi-fw-dumper package is present on the
device with USE=iwlwifi_dump enabled.
wifi_power_save < status | enable | disable >
Enable or disable WiFi power save mode. This command is not persistent across
system restarts.
wireguard wireguard <cmd> [<args>]
Available subcommands:
list
Show all configured WireGuard services.
show <name>
Show the WireGuard service with name <name>.
new <name>
Create a new WireGuard service with name <name>.
del <name>
Delete the configured WireGuard service with name <name>.
set <name> [local-ip <ip1>[,<ip2>]] [private-key] [mtu <mtu>] [dns <ip1>[,<ip2>]...]
[peer <base64-public-key> [remove]
[endpoint <hostname>/<ip>:<port>]
[preshared-key]
[allowed-ips <ip1>/<cidr1>[,<ip2>/<cidr2>]...]
[persistent-keepalive <interval seconds>] ]...
Configure properties for the WireGuard service with name <name>. Most options should
have the same meaning and usage as in `wireguard-tools` (and `wg-quick`). Exceptions
are:
- At most one IPv4 address and one IPv6 address is supported for `local-ip`.
- If `dns` is not set, it will be defaulted to "8.8.8.8,8.8.4.4".
- If `mtu` is not set, it will be determined automatically. Set it to 0 to reset the
existing value.
- `endpoint` must be set before using `connect` command.
- `private-key` and `preshared-key` take no parameters. If they are used, this command
will prompt you to change the key (or remove the key) via stdin, to avoid leaving
them in the history of shell.
connect <name>
Connect to the configured WireGuard service with name <name>.
disconnect <name>
Disconnect from the configured WireGuard service with name <name>.
Utility to configure and control a WireGuard VPN service
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment