GitHub/school-of-sre
1
0
Fork 0
mirror of https://github.com/linkedin/school-of-sre synced 2026-01-21 16:08:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merged further readings and references. Added absolute path for links

Browse Source
This commit is contained in:
Sumit Sulakhe
2021-02-08 07:08:22 -08:00
committed by Sumit Sulakhe
parent 561f8cd547
commit b9a9d3cc12
4 changed files with 31 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
courses/metrics_and_monitoring/command-line_tools.md
View File

@@ -27,7 +27,8 @@ on). Let's look at some of the tools that are predominantly used.
- `-x` -- When displaying processes matched by other options,
includes processes that do not have a controlling terminal.
![Results of top command](images/image12.png) <p align="center"> Figure 2: Results of top command </p>
![Results of top command](images/image12.png)
<p align="center"> Figure 2: Results of top command </p>
- `ss` -- The socket statistics command (ss) displays information
about network sockets on the system. This tool is the successor of
@@ -52,8 +53,8 @@ on). Let's look at some of the tools that are predominantly used.
displays the statistics in a human-readable format.
![Memory
statistics on a host in human-readable form](images/image6.png) <p align="center"> Figure 4: Memory
statistics on a host in human-readable form </p>
statistics on a host in human-readable form](images/image6.png)
<p align="center"> Figure 4: Memory statistics on a host in human-readable form </p>
- `df --` The df command displays disk space usage statistics. The
`-i` command-line option is also often used to display
@@ -61,7 +62,8 @@ on). Let's look at some of the tools that are predominantly used.
statistics. The `-h` command-line option is used for displaying
statistics in a human-readable format.
![Disk usage statistics on a system in human-readable form](images/image9.png) <p align="center"> Figure 5:
![Disk usage statistics on a system in human-readable form](images/image9.png)
<p align="center"> Figure 5:
Disk usage statistics on a system in human-readable form </p>
- `sar` -- The sar utility monitors various subsystems, such as CPU
@@ -75,7 +77,8 @@ on). Let's look at some of the tools that are predominantly used.
specifies which network interface to watch.
![Network bandwidth usage by
active connection on the host](images/image2.png) <p align="center"> Figure 6: Network bandwidth usage by
active connection on the host](images/image2.png)
<p align="center"> Figure 6: Network bandwidth usage by
active connection on the host </p>
- `tcpdump` -- The tcpdump command is a network monitoring tool that
@@ -94,5 +97,6 @@ active connection on the host </p>
- `port <port number>` -- Filters traffic to or from a particular
port
![tcpdump of packets on an interface](images/image10.png) <p align="center"> Figure 7: *tcpdump* of packets on *docker0*
![tcpdump of packets on an interface](images/image10.png)
<p align="center"> Figure 7: *tcpdump* of packets on *docker0*
interface on a host </p>