tracetree

运行一个进程，ptrace 它及其所有子进程，并在结束时打印整个进程树。

目前仅支持 Linux。

示例

以文本格式将进程树打印到 stdout

$ tracetree /bin/bash -c '/bin/sleep 1; /bin/sleep 1'
16665 bash -c /bin/sleep 1; /bin/sleep 1 [2.004s]
	16666 sleep 1 [1.001s]
	16667 sleep 1 [1.000s]

以 JSON 格式将进程树打印到 output.json

$ tracetree -f json -o output.json /bin/bash -c '/bin/sleep 1; /bin/sleep 1'
$ python -mjson.tool output.json
{
    "children": [
        {
            "children": [],
            "cmdline": [
                "/bin/sleep",
                "1"
            ],
            "ended": "2017-06-22T06:28:58.960384212-04:00",
            "pid": 16727,
            "started": "2017-06-22T06:28:57.959636824-04:00"
        },
        {
            "children": [],
            "cmdline": [
                "/bin/sleep",
                "1"
            ],
            "ended": "2017-06-22T06:28:59.961990469-04:00",
            "pid": 16728,
            "started": "2017-06-22T06:28:58.960849779-04:00"
        }
    ],
    "cmdline": [
        "/bin/bash",
        "-c",
        "/bin/sleep 1; /bin/sleep 1"
    ],
    "ended": "2017-06-22T06:28:59.962407641-04:00",
    "pid": 16726,
    "started": "2017-06-22T06:28:57.958836370-04:00"
}

可以使用此 网络可视化工具 查看JSON输出：