$ nano tes.txt asal $ ls tes.txt $ cat tes.txt asal $ cat aaa cat: aaaaa: No such file or directory $ cat tes.txt > salin.txt $ cat salin.txt asal $ cat aaa 2> salin.txt $ cat salin.txt cat: aaaaa: No such file or directory $ cat tes.txt &> salin.txt asal cat: aaaaa: No such file or directory $ cat tes.txt > salin.txt 2>&1 asal cat: aaaaa: No such file or directory