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1on?<trigger>
2???<command>
3???<command>
4???<command>

1service?<name>?<pathname>?[?<argument>?]*
2???<option>
3???<option>

 1service?logd?/system/bin/logd
 2????class?core
 3????socket?logd?stream?0666?logd?logd
 4????socket?logdr?seqpacket?0666?logd?logd
 5????socket?logdw?dgram?0222?logd?logd
 6????group?root?system
 7?????writepid?/dev/cpuset/system-background/tasks
 8
 9service?healthd?/sbin/healthd
10????class?core
11????critical
12????seclabel?u:r:healthd:s0
13
14#?Actions
15#?on???????
16on?property:sys.powerctl=*
17????powerctl?${sys.powerctl}
18
19on?early-init
20????#?Set?init?and?its?forked?children's?oom_adj.
21????write?/proc/1/oom_score_adj?-1000
22????#?Set?the?security?context?of?/adb_keys?if?present.
23????restorecon?/adb_keys
24????start?ueventd

1import?/init.environ.rc
2import?/init.usb.rc
3import?/init.${ro.hardware}.rc
4import?/init.usb.configfs.rc
5import?/init.${ro.zygote}.rc
6import?/init.trace.rc

 1on?early-init
 2????
 3
 4on?init
 5????
 6
 7on?late-init
 8????
 9
10on?post-fs
11???
12
13on?boot
14???
15
16on?property:sys.init_log_level=*??//在設(shè)置屬性值時(shí)觸發(fā)
17???
18
19on?charger
20???
21
22on?property:sys.powerctl=*
23???

 1bootchart_init
 2???Start?bootcharting?if?configured?(see?below).
 3???This?is?included?in?the?default?init.rc.
 4
 5chmod?mode>?<path>
 6???Change?file?access?permissions.
 7
 8chown??<group>?<path>
 9???Change?file?owner?and?group.
 10
 11class_start?
 12???Start?all?services?of?the?specified?class?if?they?are
 13???not?already?running.
 14
 15class_stop?
 16???Stop?and?disable?all?services?of?the?specified?class?if?they?are
 17???currently?running.
 18
 19class_reset?
 20???Stop?all?services?of?the?specified?class?if?they?are
 21???currently?running,?without?disabling?them.?They?can?be?restarted
 22???later?using?class_start.
 23
 24copy??
 25???Copies?a?file.?Similar?to?write,?but?useful?for?binary/large
 26???amounts?of?data.
 27
 28domainname?<name>
 29???Set?the?domain?name.
 30
 31enable?
 32???Turns?a?disabled?service?into?an?enabled?one?as?if?the?service?did?not
 33???specify?disabled.
 34???If?the?service?is?supposed?to?be?running,?it?will?be?started?now.
 35???Typically?used?when?the?bootloader?sets?a?variable?that?indicates?a?specific
 36???service?should?be?started?when?needed.?E.g.
 37?????on?property:ro.boot.myfancyhardware=1
 38????????enable?my_fancy_service_for_my_fancy_hardware
 39
 40exec?[??[?<user>?[?<group>?]*?]?]?--??[??]*
 41???Fork?and?execute?command?with?the?given?arguments.?The?command?starts
 42???after?"--"?so?that?an?optional?security?context,?user,?and?supplementary
 43???groups?can?be?provided.?No?other?commands?will?be?run?until?this?one
 44???finishes.??can?be?a?-?to?denote?default.
 45
 46export?<name>?<value>
 47???Set?the?environment?variable?<name>?equal?to?<value>?in?the
 48???global?environment?(which?will?be?inherited?by?all?processes
 49???started?after?this?command?is?executed)
 50
 51hostname?<name>
 52???Set?the?host?name.
 53
 54ifup?<interface>
 55???Bring?the?network?interface?<interface>?online.
 56
 57import?
 58???Parse?an?init?config?file,?extending?the?current?configuration.
 59
 60insmod?<path>
 61???Install?the?module?at?<path>
 62
 63load_all_props
 64???Loads?properties?from?/system,?/vendor,?et?cetera.
 65???This?is?included?in?the?default?init.rc.
 66
 67load_persist_props
 68???Loads?persistent?properties?when?/data?has?been?decrypted.
 69???This?is?included?in?the?default?init.rc.
 70
 71loglevel?<level>
 72???Sets?the?kernel?log?level?to?level.?Properties?are?expanded?within?<level>.
 73
 74mkdir?<path>?[mode]?[owner]?[group]
 75???Create?a?directory?at?<path>,?optionally?with?the?given?mode,?owner,?and
 76???group.?If?not?provided,?the?directory?is?created?with?permissions?755?and
 77???owned?by?the?root?user?and?root?group.?If?provided,?the?mode,?owner?and?group
 78???will?be?updated?if?the?directory?exists?already.
 79
 80mount_all?
 81???Calls?fs_mgr_mount_all?on?the?given?fs_mgr-format?fstab.
 82
 83mount?<type>???[??]*?[]
 84???Attempt?to?mount?the?named?device?at?the?directory?
 85????may?be?of?the?form?mtd@name?to?specify?a?mtd?block
 86???device?by?name.
 87???s?include?"ro",?"rw",?"remount",?"noatime",?...
 88????include?"barrier=1",?"noauto_da_alloc",?"discard",?...?as
 89???a?comma?separated?string,?eg:?barrier=1,noauto_da_alloc
 90
 91powerctl
 92???Internal?implementation?detail?used?to?respond?to?changes?to?the
 93???"sys.powerctl"?system?property,?used?to?implement?rebooting.
 94
 95restart?
 96???Like?stop,?but?doesn't?disable?the?service.
 97
 98restorecon??[??]*
 99???Restore?the?file?named?by??to?the?security?context?specified
100???in?the?file_contexts?configuration.
101???Not?required?for?directories?created?by?the?init.rc?as?these?are
102???automatically?labeled?correctly?by?init.
103
104restorecon_recursive??[??]*
105???Recursively?restore?the?directory?tree?named?by??to?the
106???security?contexts?specified?in?the?file_contexts?configuration.
107
108rm?
109???Calls?unlink(2)?on?the?given?path.?You?might?want?to
110???use?"exec?--?rm?..."?instead?(provided?the?system?partition?is
111???already?mounted).
112
113rmdir?
114???Calls?rmdir(2)?on?the?given?path.
115
116setprop??
117???Set?system?property??to?.?Properties?are?expanded
118???within?.
119
120setrlimit???
121???Set?the?rlimit?for?a?resource.
122
123start?
124???Start?a?service?running?if?it?is?not?already?running.
125
126stop?
127???Stop?a?service?from?running?if?it?is?currently?running.
128
129swapon_all?
130???Calls?fs_mgr_swapon_all?on?the?given?fstab?file.
131
132symlink??
133???Create?a?symbolic?link?at??with?the?value?
134
135sysclktz?
136???Set?the?system?clock?base?(0?if?system?clock?ticks?in?GMT)
137
138trigger?
139???Trigger?an?event.??Used?to?queue?an?action?from?another
140???action.
141
142verity_load_state
143???Internal?implementation?detail?used?to?load?dm-verity?state.
144
145verity_update_state?
146???Internal?implementation?detail?used?to?update?dm-verity?state?and
147???set?the?partition..verified?properties?used?by?adb?remount
148???because?fs_mgr?can't?set?them?directly?itself.
149
150wait?<path>?[?<timeout>?]
151???Poll?for?the?existence?of?the?given?file?and?return?when?found,
152???or?the?timeout?has?been?reached.?If?timeout?is?not?specified?it
153???currently?defaults?to?five?seconds.
154
155write?<path>?<content>
156???Open?the?file?at?<path>?and?write?a?string?to?it?with?write(2).
157???If?the?file?does?not?exist,?it?will?be?created.?If?it?does?exist,
158???it?will?be?truncated.?Properties?are?expanded?within?<content>.

 1critical
 2??This?is?a?device-critical?service.?If?it?exits?more?than?four?times?in
 3??four?minutes,?the?device?will?reboot?into?recovery?mode.
 4
 5disabled
 6??This?service?will?not?automatically?start?with?its?class.
 7??It?must?be?explicitly?started?by?name.
 8
 9setenv??
10??Set?the?environment?variable??to??in?the?launched?process.
11
12socket????[??[?<group>?[??]?]?]
13??Create?a?unix?domain?socket?named?/dev/socket/?and?pass
14??its?fd?to?the?launched?process.???must?be?"dgram",?"stream"?or?"seqpacket".
15??User?and?group?default?to?0.
16??'seclabel'?is?the?SELinux?security?context?for?the?socket.
17??It?defaults?to?the?service?security?context,?as?specified?by?seclabel?or
18??computed?based?on?the?service?executable?file?security?context.
19
20user?
21??Change?to?username?before?exec'ing?this?service.
22??Currently?defaults?to?root.??(????probably?should?default?to?nobody)
23??Currently,?if?your?process?requires?linux?capabilities?then?you?cannot?use
24??this?command.?You?must?instead?request?the?capabilities?in-process?while
25??still?root,?and?then?drop?to?your?desired?uid.
26
27group??[??]*
28??Change?to?groupname?before?exec'ing?this?service.??Additional
29??groupnames?beyond?the?(required)?first?one?are?used?to?set?the
30??supplemental?groups?of?the?process?(via?setgroups()).
31??Currently?defaults?to?root.??(????probably?should?default?to?nobody)
32
33seclabel?
34??Change?to?'seclabel'?before?exec'ing?this?service.
35??Primarily?for?use?by?services?run?from?the?rootfs,?e.g.?ueventd,?adbd.
36??Services?on?the?system?partition?can?instead?use?policy-defined?transitions
37??based?on?their?file?security?context.
38??If?not?specified?and?no?transition?is?defined?in?policy,?defaults?to?the?init?context.
39
40oneshot
41??Do?not?restart?the?service?when?it?exits.
42
43class?
44??Specify?a?class?name?for?the?service.??All?services?in?a
45??named?class?may?be?started?or?stopped?together.??A?service
46??is?in?the?class?"default"?if?one?is?not?specified?via?the
47??class?option.
48
49onrestart
50??Execute?a?Command?(see?below)?when?service?restarts.
51
52writepid?
53??Write?the?child's?pid?to?the?given?files?when?it?forks.?Meant?for
54??cgroup/cpuset?usage.

1service?console?/system/bin/sh
2?????class?core
3?????console
4?????disabled
5?#????user?shell
6?#????group?shell?log
7?#????seclabel?u:r:shell:s0

1service?start_mytest?/system/bin/mytest.sh????
2????oneshot
3????on?property:sys.boot_completed=1
4????start?start_mytest

1#!/system/bin/sh
2
3echo?"mytest?...!"?>?/dev/ttyS0
4echo?"mytest?...!"?>?/dev/ttyS0
5echo?"mytest?...!"?>?/dev/ttyS0
6echo?"mytest?...!"?>?/dev/ttyS0
7echo?"mytest?...!"?>?/dev/ttyS0
8echo?"mytest?...!"?>?/dev/ttyS0
9echo?"mytest?...!"?>?/dev/ttyS0