Linux Comm Glances

Image 1: Linux Complete Command Reference Linux Command Encyclopedia

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glances is a cross-platform command-line system monitoring tool that can display various performance metrics of Linux systems in an intuitive way. Compared with traditional top or htop commands, glances provides richer monitoring dimensions and a more user-friendly interface.

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Main Features:

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Real-time monitoring of CPU, memory, disk, network and other core metrics
Support for color display and dynamic refresh
Can be accessed remotely via Web interface
Low resource consumption, suitable for long-term running
Support plugin extension function

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Install glances

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Ubuntu/Debian systems

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Example

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sudo apt update\n\nsudo apt install glances

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CentOS/RHEL systems

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Example

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sudo yum install epel-release\n\nsudo yum install glances

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Install using pip (all Linux distributions)

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pip install glances

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Basic Usage

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The simplest way to start glances is to directly enter the command:

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glances

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After starting, you will see a dynamic monitoring interface similar to this:

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CPU[|||||||||||||||||||||||||90.5%] RAM[|||||||||||||||||65.2%] SWAP[|3.1%]Load average: 1.78 1.23 0.89 NETWORK Rx/s Tx/s DISK I/O R/s W/s eth0 1.2Mb 560Kb sda 450Kb 1.2Mb wlan0 320Kb 120Kb sdb 0Kb 0KbProcesses: 156 total, 3 running, 153 sleeping

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Common Shortcuts and Interactive Commands

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In the glances running interface, you can use the following shortcuts:

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Shortcut	Function Description
`q` or `ESC`	Exit glances
`c`	Sort processes by CPU usage
`m`	Sort processes by memory usage
`i`	Show/hide I/O rate
`d`	Show/hide disk I/O
`n`	Show/hide network information
`f`	Show/hide filesystem information
`s`	Show/hide sensor information
`w`	Delete warning logs
`h`	Show help information

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Important Command Line Options

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glances provides rich command line options to customize monitoring behavior:

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Display Control Options

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Example

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glances -t 2# Set refresh interval to 2 seconds (default 1 second)\n\n glances --disable-plugins fs,ip# Disable filesystem and IP plugins\n\n glances --percpu# Display usage for each CPU core

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Output Format Options

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Example

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glances --csv# CSV format output\n\n glances --json# JSON format output\n\n glances --export influxdb # Output to InfluxDB database

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Remote Monitoring Options

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Example

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glances -s# Start glances server mode\n\n glances -c@192.168.1.100 # Connect to remote glances server\n\n glances -w# Enable Web server mode (default port 61208)

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Practical Application Examples

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Example 1: Monitor specific process

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glances --process-name nginx # Only monitor nginx related processes

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Example 2: Generate system snapshot

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glances --export csv --export-csv-file /tmp/system_stats.csv

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Example 3: Set alert threshold

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glances --alert cpu:80,mem:90 # Alert when CPU exceeds 80% or memory exceeds 90%

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Example 4: Remote Web monitoring

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Example

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glances -w& # Start Web service\n\n firefox http://localhost:61208# View in browser

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glances Configuration File

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The glances configuration file is usually located at ~/.config/glances/glances.conf, you can permanently modify the default settings by

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