参考： https://unix.stackexchange.com/questions/386545/nohup-failed-to-run-command-permission-denied

nohup: failed to run command ‘/for.sh’: Permission denied

1. 确保shell脚本是 #!/bin/sh 开头
2. 更改脚本文件的权限： chmod +x ./for.sh

nohup: ignoring input and appending output to ‘nohup.out’

nohup: ignoring input and appending output to ‘nohup.out’ nohup: failed to run command ‘/for.sh’: Permission denied