Q$1.$ Write a program using dup$()/$dup$2()$ to assign $1$ as the duplicate

file descriptor.

$$ Q$2.$ Write a program to duplicate a file descriptor of a file. Use the old

file descriptor to read the first $5$ characters and the new file descriptor

to append some new content to the file.

$36$

Q$1.$ Write a program using fork$()$ system call to create two child of the

same process i$.$e$.,$ Parent P having child process P$1$ and P$2.$

$$ Q$2.$ Write a program using fork$()$ system call to create a hierarchy of $3$

process such that P$2$ is the child of P$1$ and P$1$ is the child of P$.$

$7$