ee7klt

# Easily extract all compressed file types
extract () {
   if [ -f $1 ] ; then
       case $1 in
           *.tar.bz2)   tar xvjf $1    ;;
           *.tar.gz)    tar xvzf $1    ;;
           *.bz2)       bunzip2 $1     ;;
           *.rar)       unrar x $1     ;;
           *.gz)        gunzip $1      ;;
           *.tar)       tar xvf $1     ;;

ee7klt

whats the point of 'se' in this sentence? why not just: 'Él va al restaurante.'
Bisade, "se" is used because the verb is reflexive. Duolingo is technically incorrect. It should be He leaves for the restaurant--with the implied meaning that he is in one place headed for another place. IR (to go) changes meaning when used as a reflexive verb. IRSE = to leave. Think of these two English sentences: I am going to the restaurant tomorrow. I am leaving for the restaurant from my office. The first would use IR; the latter would use IRSE.

ee7klt

class Account(private var amount: Int = 0) {
def transfer(target:Account, n: Int) =
  this.synchronized {
    target.synchronized {
      this.amount -= n
      target.amount += n
      }
     }
 }