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touch command create a directory? Comanda touch creează un director? for color in red blue green; echo $color displays red blue green. Secvența: for color in red blue green; echo $color afișează red blue green. test -x file checks if file is an executable file. test -x file verifică dacă file este fișier executabil.val=`expr 2 + 2`echo "Value: $val"will display Value: $val. val=`expr 2 + 2`echo "Valoare: $val"va afișa Valoare: $val.$0 returns the name of the current shell file.Variabila
$0 returnează numele fișierului shell curent.