＠:GNU grep:2.27:2016/11/21:egrep:1:grep:1:
＠:GNU grep:2.27:2016/11/21:fgrep:1:grep:1:
○:GNU grep:2.27:2016/11/21:grep:1:2017/02/25::emasaka@gmail.com:Masakazu Takahashi: