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(f) What kind of problem can happen by executing the following command? sort file1 > file1 or cat /etc/passwd > backup (g) How can you

(f) What kind of problem can happen by executing the following command?

sort file1 > file1

cat /etc/passwd > backup

(g) How can you solve the problem of (f) in current shell?

(h) How do you keep the change of (g) from session to session?

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