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#!/bin/bash
k="abc=value1"
rx='abc=(.*)'
if [[ $k =~ $rx ]]; then
    echo ${BASH_REMATCH[1]}; # => value1
fi
 
echo ${k#*=} # => value1

Success #stdin #stdout 0s 4512KB

stdin

Standard input is empty

stdout

value1
value1

https://ideone.com/Ny9O7o

language:

Bash (bash 5.0.3)

created:

visibility:

secret

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