@icchan119さんが投稿したコード一覧 | Codetter（こーどったー）

val regex = "([0-9]+.[0-9]+.[0-9]+.[0-9]+).*([0-3][0-9].[A-Z][a-z][a-z].20[0-1][0-9]:[0-2][0-9]:[0-5][0-9]:[0-5][0-9]).*".r;

scala.io.Source.fromFile("./access_log").getLines().foreach( x => { x match { case regex(ip,date) => {println(ip +" at " + date) } case _ => println("no match") }}

if [ 0 -eq $# ] ;
then
    echo "usage: mysql_data_import.sh [dump-file]"
    exit 1;
else

scala> "1234567789".map( x => x )        
res0: String = 1234567789

scala> "1234567789".map( x => Option(x) )          
res1: scala.collection.immutable.IndexedSeq[Option[Char]] = Vector(Some(1), Some(2), Some(3), Some(4), Some(5), Some(6), Some(7), Some(7), Some(8), Some(9))

"1234567890".reverse.sliding(3,3).map( x => x.reverse).toList.reverse.mkString(",");