#!/bin/sh emoji=”U1f300-U1f5ffU1f900-U1f9ffU1f600-U1f64fU1f680-U1f6ffU2600-U26ffU2700-U27bfU1f1e6-U1f1ffU1f191-U1f251U1f004U1f0cfU1f170-U1f171U1f17e-U1f17fU1f18eU3030U2b50U2b55U2934-U2935U2b05-U2b07U2b1b-U2b1cU3297U3299U303dU00a9U00aeU2122U23f3U24c2U23e9-U23efU25b6U23f8-U23fa” sample=”This ???? is ⭐ a ???? line ???? of ???? emoji ✈” echo $sample echo $sample | LC_ALL=UTF-8 sed -e “s/[$(printf $emoji)]//g” The preceding script can obtain normal execution results on other Linux operating systems (such as centos). However, if the script is executed on OpenWRT, an error message is displayed sed: bad […]