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40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
Batch Processing
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================
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With the help of Batch Processing, you can run multiple commands in batch and get the final result at the end.
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### Usage
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#### Step 1: Create the script
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Create a `test.as` script suffixed with `as`. Here `as` is suggested for the suffix of the filename, but in fact any suffix is acceptable.
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```bash
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➜ arthas git:(develop) cat /var/tmp/test.as
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help
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dashboard -b -n 1
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session
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thread
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sc -d org.apache.commons.lang.StringUtils
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```
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Note:
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* Each command takes one line.
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* Batch mode (via `-b`) and execution times (via `-n`) must be explicitly specified for `dashboard`, otherwise batch script cannot terminate.
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* Commands such as `watch`/`tt`/`trace`/`monitor`/`stack` should include `-n` option to ensure the script can be able to quit.
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* Also consider to use `async` (for example: `watch c.t.X test returnObj > &`) to put commands run at background and get the output from the log file, see more from [asynchronous job](async.md)
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#### Step 2: Run the script
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Use `-b` to turn on batch mode, and use `-f` to specify the script file. By default the result will be output to the standard output, but you can redirect the output to the file like this:
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```bash
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./as.sh -b -f /var/tmp/test.as 56328 > test.out
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```
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#### Step 3: Check the outputs
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```bash
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cat test.out
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```
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