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iftop

iftop

Display an interface's bandwidth usage.

Runs as iftop|macOS, Linux, Windows|pdw.ex-parrot.com
Open form in Otty otty.toml

Command form

ai-draft · 2 tasks · 7 fields

Live per-connection bandwidth on one interface, or a one-shot text dump. Needs root. Packet filters, config files and sorting options are not in this form.

Opens the form; the finished command lands at your prompt, unrun
Run in Otty
otty gui iftop
Watch network bandwidthExample values, fixed in this page — nothing here reaches a terminal
Basic
Interface
string
No hostname lookups
-n
Show ports
-P
Bytes per second
-B
Advanced
No port-to-service names
-N
TasksEach one presets the form for one job
Watch an interface
interfaceno_dnsno_serviceshow_portsbytes
Text dump
interfacetextno_dnsbytes
ParametersOnly these flags are editable in the form
Interface
string
-i
No hostname lookups
boolean
-n
No port-to-service names
boolean
-N
Show ports
boolean
-P
Bytes per second
boolean
-B
Promiscuous mode
boolean
-p
Text output (no ncurses)
boolean
-t
SourcesEvery flag above is checked against these
man
-n Don't do hostname lookups. -N Do not resolve port number to service names -p Run in promiscuous mode, so that traffic which does not pass directly -P Turn on port display. -B Display bandwidth rates in bytes/sec rather than bits/sec. -i interface Listen to packets on interface. -f filter Use filter code to select the packets to…
manualbookworm

manpages.debian.org

Before it fills your prompt, Otty checks the installed iftop against its version. A form that does not match your version is not offered.