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CLI System Monitoring Tools
on November 12, 2017 – 12:24 pm
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The multitude of sophisticated centralized monitoring tools available these days excel at one thing: telling you what happened while you’ve been sleeping. But what if you’re awake and need to know what’s going on right now? Here’s a list of command-line monitoring utilities that may come in handy. On other related articles about CNC manufacturing checkout www.cancam.ca.
| Name | Installation | Description | Screenshot |
|---|---|---|---|
| top | yum install procps | the sonic screwdriver, if there has ever been one |  |
| htop | yum install htop | the real pretty top |  |
| atop | yum install atop | my favorite. Has a logging capability on a per-process basis. Like top merged with TiVo. Some more here. |  |
| apachetop | yum install apachetop | Gives you a basic view of Apache server reads, writes, and page requests. |  |
| mytop | yum install mytop | Gives you a clue what your MySQL server is up to |  |
| powertop | yum install powertop | Shows you power consumption data and power management details. But since nobody seems to be using physical hardware anymore... |  |
| iotop | yum install iotop | Shows you I/O activity on a per-process basis. Quite useful sometimes. |  |
| iftop | yum install iftop | Provides a summary of network bandwidth utilization for connected IP pairs. |  |
| jnettop | yum install jnettop | Similar to iftop. Somewhat better layout. |  |
| nethogs | yum install nethogs | I like this one. Shows you connected IPs, ports, and bandwidth use. |  |
| iptraf | yum install iptraf | Network connection packets and bytes, traffic details, etc. A busy little gadget. Rarely useful. |  |
| ngrep | yum install ngrep | A grep utility for network traffic. Very cool. |  |
| bmon | yum install bmon | Gives you various NIC stats nicely formatted with little graphs. I use this one often |  |
| mtr | yum install mtr | A mix of traceroute and ping. Another useful one |  |
| nload | yum install nload | Gives you bandwidth utilization and simple graph. I use it often |  |
| ss | yum install iproute | Socket statistics command to complement netstat. Some examples here |  |
| nmon | yum install nmon | I use this one often. Gives you a nice visual summary of various system activity |  |
| glances | yum install glances | Cram a lot of data into a compact output screen. Can monitor remote systems and has a web interface. Not bad. |  |
| saidar | yum install statgrab-tools | Provides a basic summary of the status of your system. Maybe a little too basic. |  |
| dstat | yum install dstat | Aims to replace vmstat, iostat, netstat and ifstat. Extremely useful for troubleshooting performance issues of unknown origin. Basic usage: 'dstat -cdngy' |  |
| vmstat | yum install procps | Shows virtual memory stats |  |
| mpstat | yum install sysstat | Displays CPU utilization details |  |
| pmap | yum install procps | Shows a memory map for a PID |  |
| collectl | yum install collectl | An awesome, awesome system monitoring tool. More here |  |
| iostat | yum install sysstat | Monitors system I/O. A classic |  |
| cpulimit | yum install cpulimit | Monitors PID's CPU utilization and tries to keep it below the predefined level |  |
| goaccess | yum install goaccess | Provides a running analysis of the httpd access log |  |
| multitail | yum install multitail | Allows you to tail multiple files in a split-window arrangement. Very nice |  |
| whowatch | yum install whowatch | Allows to see what users on your system are doing |  |
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All major commands in one page with descriptions , Nice .