-bash：‘export：找不到命令

Question

简单的bash脚本查找文件并将其复制

#!/bin/bash
find /Volumes/Backup/SMC\ Media\ Backup/New\ Lifehouse\ -\ Brush\    Creek/Media/ -mtime -1 -exec rsync -r -u  "{}" /Volumes/Backup/SMC\ Frameio/Adolescent/ \;

但是当运行返回时，

 -bash: ‘export: command not found