step1、install Xcode

step2、install xcpkg

step3、update xcpkg-formula-repository

xcpkg update

step4、build and install gnu-sed

xcpkg install gnu-sed

xcpkg formula view gnu-sed

{{ formula }}

if the formula of gnu-sed dosn't meet your needs, you can edit it ⤵︎

xcpkg formula edit gnu-sed

after editing, you may want to rebuild this package ⤵︎

xcpkg install gnu-sed