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#!/bin/bash
s='123.456.789.01'
s="${s%.*}."
echo "$s"

Success #stdin #stdout 0.01s 5424KB

stdin

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Standard input is empty

stdout

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123.456.789.

https://ideone.com/s6pezq

language:

Bash (bash 5.0.3)

created:

visibility:

secret

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