Как удалить файл без команды "удалить" в Linux

[ruslan@localhost]$

touch file1 # regural file

touch file2 # we will remove this file by a hint

echo "This is first file" > file1

echo "This is second file" > file2

cat file1

"This is first file"

cat file2

"This is second file"

ls

file1 file2

mv file1 file2

ls

file2

cat file2

"This is first file"

#Where is the second file? Thoughts?

Чего сыграть на сольной репетиции

1. Bullet For My Valentine - Pretty On The Outside
2. All Shall Perish - Better Living Through Catastrophe
3. Bullet For My Valentine - Suffocating Under Words Of Sorrow

5. Dream Theater - Overture 1928

7. Bullet For My Valentine - Waking The Demon

9. Avenged Sevenfold - Sidewinder
10. Linkin Park - Numb

SLA

Очень хороший пример Service Level Agreement
http://www.active.by/ru-by/clients/documents/sla/