diff --git a/study/debug/tools/bcc/README.md b/study/debug/tools/bcc/README.md
index 42c328e..e777808 100644
--- a/study/debug/tools/bcc/README.md
+++ b/study/debug/tools/bcc/README.md
@@ -126,7 +126,7 @@ Arch Linux - AUR
bcc bcc-tools python-bcc python2-bcc
如何在Linux系统中使用BCC工具
所有BCC工具将被安装/usr/share/bcc/tools目录下。 但是,您可以替代地根据BCC Github上库运行它们/tools在那里他们有结束.py扩展。
-$ ls /usr/share/bcc/tools
+$ ls /usr/share/bcc/tools
argdist capable filetop offwaketime stackcount vfscount
bashreadline cpudist funccount old stacksnoop vfsstat
biolatency dcsnoop funclatency oomkill statsnoop wakeuptime
@@ -140,7 +140,7 @@ cachetop fileslower offcputime sslsniff trace 我们应包括以
跟踪open()系统调用
让我们通过追踪所有启动open()使用opensnoop系统调用。这使我们能够通过识别他们的数据文件,配置文件等等告诉我们各种应用程序如何工作:
-$ cd /usr/share/bcc/tools
+$ cd /usr/share/bcc/tools
$ sudo ./opensnoop
PID COMM FD ERR PATH
1 systemd 35 0 /proc/self/mountinfo
@@ -286,25 +286,25 @@ HITS MISSES DIRTIES READ_HIT% WRITE_HIT% BUFFERS_MB CACHED_MB
监测TCP连接,每秒使用tcpconnect。其输出包括源和目标地址以及端口号。此工具可用于跟踪意外的TCP连接,从而帮助我们识别应用程序配置或攻击者的低效率。
$ sudo ./tcpconnect
PID COMM IP SADDR DADDR DPORT
-15272 Socket Threa 4 10.0.2.15 91.189.89.240 80
-15272 Socket Threa 4 10.0.2.15 216.58.199.142 443
-15272 Socket Threa 4 10.0.2.15 216.58.199.142 80
-15272 Socket Threa 4 10.0.2.15 216.58.199.174 443
-15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
-15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
-15272 Socket Threa 4 10.0.2.15 117.18.237.29 80
-15272 Socket Threa 4 10.0.2.15 216.58.199.142 80
-15272 Socket Threa 4 10.0.2.15 216.58.199.131 80
-15272 Socket Threa 4 10.0.2.15 216.58.199.131 443
-15272 Socket Threa 4 10.0.2.15 52.222.135.52 443
-15272 Socket Threa 4 10.0.2.15 216.58.199.131 443
-15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
-15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
-15272 Socket Threa 4 10.0.2.15 216.58.199.132 443
-15272 Socket Threa 4 10.0.2.15 216.58.199.131 443
-15272 Socket Threa 4 10.0.2.15 216.58.199.142 443
-15272 Socket Threa 4 10.0.2.15 54.69.17.198 443
-15272 Socket Threa 4 10.0.2.15 54.69.17.198 443
+15272 Socket Threa 4 10.0.2.15 91.189.89.240 80
+15272 Socket Threa 4 10.0.2.15 216.58.199.142 443
+15272 Socket Threa 4 10.0.2.15 216.58.199.142 80
+15272 Socket Threa 4 10.0.2.15 216.58.199.174 443
+15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
+15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
+15272 Socket Threa 4 10.0.2.15 117.18.237.29 80
+15272 Socket Threa 4 10.0.2.15 216.58.199.142 80
+15272 Socket Threa 4 10.0.2.15 216.58.199.131 80
+15272 Socket Threa 4 10.0.2.15 216.58.199.131 443
+15272 Socket Threa 4 10.0.2.15 52.222.135.52 443
+15272 Socket Threa 4 10.0.2.15 216.58.199.131 443
+15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
+15272 Socket Threa 4 10.0.2.15 54.200.62.216 443
+15272 Socket Threa 4 10.0.2.15 216.58.199.132 443
+15272 Socket Threa 4 10.0.2.15 216.58.199.131 443
+15272 Socket Threa 4 10.0.2.15 216.58.199.142 443
+15272 Socket Threa 4 10.0.2.15 54.69.17.198 443
+15272 Socket Threa 4 10.0.2.15 54.69.17.198 443
... 以上所有的工具,也可以与各种选项一起使用,使一个给定的工具的帮助页面,利用的-h选项,例如:
$ sudo ./tcpconnect -h
usage: tcpconnect [-h] [-t] [-p PID] [-P PORT]
@@ -335,7 +335,7 @@ PID COMM FD ERR PATH
15415 (ostnamed) -1 2 /sys/fs/cgroup/memory/system.slice/systemd-hostnamed.service/cgroup.procs
15415 (ostnamed) -1 2 /sys/fs/cgroup/memory/system.slice/cgroup.procs
15415 (ostnamed) -1 2 /sys/fs/cgroup/pids/system.slice/systemd-hostnamed.service/cgroup.procs
-2548 compiz -1 2
+2548 compiz -1 2
15416 systemd-cgroups -1 2 /run/systemd/container
15416 systemd-cgroups -1 2 /sys/fs/kdbus/0-system/bus
15415 systemd-hostnam -1 2 /run/systemd/container
@@ -387,10 +387,22 @@ BCC是各种系统管理任务,例如追踪系统性能监控,跟踪块设
[`GitHub-WiKi-INSTALL`](https://github.com/iovisor/bcc/blob/master/INSTALL.md)
+
+[BCC - 用于Linux性能监视,网络和更多的动态跟踪工具](https://www.howtoing.com/bcc-best-linux-performance-monitoring-tools/)
+
+[BCC – Dynamic Tracing Tools for Linux Performance Monitoring, Networking and More](https://www.tecmint.com/bcc-best-linux-performance-monitoring-tools/)
+
+[Installing eBPF tools, bcc and ply on CentOS 7](http://hydandata.org/installing-ebpf-tools-bcc-and-ply-on-centos-7)
+
+[[Centos7] bbc tools安装](http://blog.csdn.net/orangleliu/article/details/54099528)
+
+
+
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