対話式のコマンドをスクリプト化する方法 - Qiita#!/usr/bin useradd UserName expect -c " spawn passwd UserName expect \"New password:\" send -- \"hogehoge\n\" expect \"Retype new password:\" send -- \"hogehoge\n\" expect \"passwd: all authentication tokens updated successfully.\" send -- \"exit\n\" "
https://www.geektrainee.com/entry/2013/11/23/191650
