bash中,需要将脚本kelify.sh的标准输出和标准错误输出重定向到kelify.log,正确的用法是
bash kelify.sh &> kelify.log
bash kelify.sh >& kelify.log
bash kelify.sh > kelify.log 2>&1
bash kelify.sh 2> kelify.log 1> kelify.log