Write a shell script that will take an input file and remove identical lines (or duplicate lines from the file) Thank you

How does the shell determine if a file is executable before spawning a new process to carry out a command? Is it feasible for a compiled file to distinguish between a shell script and a compiled file? In what ways can we most effectively verify the aforementioned conditions?

Which of the following statements is true? A)A smaller block size will reduce internal fragmentation associated with file systems. B)A smaller block size will increase external fragmentation associated with file systems. C)A smaller block size will increase internal fragmentation associated with file systems. D)A smaller block size will reduce external fragmentation associated with file systems.

Problem 1: Write a Bash script that takes the name of a file or directory as an argument, 1. reports if it is a directory or a file, and if the user has read, write and execute permission on the file or directory, and 2. if it is a file, reports the size of the file and the category of the file based on its size. If the file size is greater than 1MB (1048576B), the file is a large file; if the file size is less than or equal to 1MB (1048576B) and the file size is greater than 100KB (10240OB), the file is a medium file; otherwise, it is a small file. Use a sequence of if statements on the file name or file size to determine the information. To get the file size, use command du -b and command cut. Read their manual for how to use them.