watch
Command Function
This command is used to periodically run the specified command and display its execution result.
Syntax
-
watch
-
watch [-c/-n/-t/--count/--interval/-no-title/--over] [command]
Parameters
Table 1 Parameter description
| Parameter | Description | Default Value | Value Range |
|---|---|---|---|
| -c / --count | Specifies the number of times that the specified command is executed. | 0xFFFFFF | (0, 0xFFFFFF] |
| -n / --interval | Specifies the interval for running the command, in seconds. | 1s | (0, 0xFFFFFF] |
| -t / -no-title | Disables time display on the top. | N/A | N/A |
| command | Specifies the command to be monitored. | N/A | N/A |
| --over | Stops the current command monitoring. | N/A | N/A |
Usage Guidelines
You can run the watch --over command to stop monitoring of the specified command.
Example
Run watch -n 2 -c 6 task.
Output
Example: The task command is executed six times at an interval of 2 seconds.
OHOS # watch -n 2 -c 6 task
Thu Jan 1 23:57:13 1970
OHOS #
allCpu(%): 3.55 sys, 196.45 idle
PID PPID PGID UID Status VirtualMem ShareMem PhysicalMem CPUUSE10s PName
1 -1 1 0 Pending 0x33b000 0xbb000 0x4dc8b 0.0 init
2 -1 2 0 Running 0x19524f2 0 0x19524f2 1.14 KProcess
3 1 3 7 Pending 0x730000 0x1a2000 0x1d34f6 0.0 foundation
4 1 4 8 Pending 0x35e000 0xb8000 0x56777 0.0 bundle_daemon
5 1 5 1 Pending 0xdfa000 0x2e7000 0x1487ce 0.0 appspawn
6 1 6 0 Pending 0x688000 0x137000 0x11c518 0.0 media_server
7 1 7 0 Pending 0x9d2000 0x103000 0xa1ddf 0.95 wms_server
8 1 1 1000 Running 0x2bf000 0x8f000 0x2a8c6 0.0 shell
11 1 11 0 Pending 0x4d4000 0x112000 0xe0ad7 0.0 deviceauth_service
12 1 12 0 Pending 0x34f000 0xbd000 0x519ee 0.0 sensor_service
13 1 13 2 Pending 0x34e000 0xb3000 0x523d9 0.0 ai_server
14 1 14 0 Pending 0x61f000 0x13b000 0x16841c 0.51 softbus_server
TID PID Affi CPU Status StackSize WaterLine CPUUSE10s MEMUSE TaskName
23 1 0x3 -1 Pending 0x3000 0xe44 0.0 0 init
1 2 0x1 -1 Pending 0x4000 0x2c4 0.64 0 Swt_Task
2 2 0x3 -1 Pending 0x4000 0x204 0.0 0 system_wq
3 2 0x2 -1 Pending 0x4000 0x514 0.40 0 Swt_Task
4 2 0x3 -1 Pending 0x1000 0x36c 0.0 0 ResourcesTask
7 2 0x3 -1 Pending 0x4e20 0xa5c 0.0 0 PlatformWorkerThread
8 2 0x3 -1 Pending 0x4e20 0xa6c 0.0 0 PlatformWorkerThread
9 2 0x3 -1 Pending 0x4e20 0xa5c 0.0 0 PlatformWorkerThread
10 2 0x3 -1 PendTime 0x4000 0x3e4 0.5 0 hi_vdec_thread
11 2 0x3 -1 Pending 0x3000 0x4cc 0.0 0 bcache_async_task
12 2 0x3 -1 Pending 0x2710 0x224 0.0 0 LiteOS usb pnp notify handle kt
13 2 0x3 -1 Pending 0x4000 0x204 0.0 0 vibrator_queue
14 2 0x3 -1 Pending 0x3000 0x37c 0.0 0 bcache_async_task
15 2 0x3 -1 Pending 0x20000 0x3e4 0.0 0 eth_irq_Task
16 2 0x3 -1 PendTime 0x2000 0x3a4 0.0 0 MessageDispatcher
17 2 0x3 0 Running 0x3000 0x73c 0.0 0 shellcmd_watch
18 2 0x3 -1 Pending 0x2710 0x3ac 0.0 0 GPIO_IRQ_TSK_0_4