PLEASE ANSWER USING ONLY BASH AND SED AS THE DIRECTIONS STATE. THANK YOU VERY MUCH!!

For this assignment, you will use sed, bash, and the other utilities you have used in class to create a program for redacting personally-identifiable information. Your program should take a path to a directory and an integer representing the number of days old a file within that directory must be to be redacted (use the date it was last modified). The program should take an optional third parameter -r, which will cause the program to operate recursively within the directory. Without this option, the program should not traverse into subdirectories This assignment requires only sed, bash, and the other utilities used so far in class. Do not use awk, Python, or any other languages/utilities Redaction Rules For all files fitting the criteria, the following changes should be made in place. No other changes should be made to the file Social Security numbers should be replaced with %%%-%%-%%%% . Phone numbers should have their digits replaced with '#, Phone numbers can take the following forms where d is a digit and s is any number of whitespace characters, including zero . Any strings between %, characters should be completely removed, including the % char acter. You may assume such instances will not span multiple lines - Any line beginning with 'followed by one or more spaces should have the line "* ATTENTION *" (note the single spaces around "ATTENTION") preceded by a blank line and followed by a blank line Dates of the form "DD/MM/YYYY should be converted to "YYYY-MM-DD" Days and months will not be zero-padded before or after they are updated Example Original redactme.txt 1 Cast and characters 2 Bob Denver is Gilligan, the inept, accident-prone First Mate 3 (affectionately known as "Little Buddy" by "the Skipper") of the SS Minnow 4 Denver was not the first choice to play Gilliganactor Jerry Van Dyke, phone 5 210-222-3333, was offered the role on 2/11/1963, but he turned it down 6 believing that the show would never be successful. He chose instead to play the 7 lead in My Mother the Car, which premiered the following year and was cancelled 8 after one season. The producers looked to Bob Denver the actor who had played 9 Maynard G. Krebs, ss #111-22-3333, the goofy but lovable beatnik in The Many 10 Loves of Dobie Gil lis. None of the show's episodes ever specified Gilligan 's 11 fu name or clearly indicated whether " Gilligan " was the character 's first name 12 or his last. In the DVD collection , Sherwood Schwartz states that he preferred 13 the full name of "%Willy Gilligan%" for the character Redacted Version of redactme.txt: 1 Cast and characters 3 ATTENTION 5 Bob Denver is Gilligan, the inept, accident-prone First Mate 6 affectionately known as Little Buddy" by "the Skipper") of the SS Minnow 7 Denver was not the first choice to play Gilligan actor Jerry Van Dyke, phone 8 ##+# ##--###was offered the role on 1963-11-2, but he turned it down , 9 believing that the show would never be successful. He chose instead to play the 10 ead in My Mother the Car, which premiered the following year and was cancelled 11 after one season. The producers looked to Bob Denver the actor who had played 12 Maynard G. Krebs, ss #%%%-969g%%%% the goofy but lovable beatnik in The Many 13 Loves of Dobie Gillis. None of the show's episodes ever specified Gilligan 's 14 ful name or clearly indicated whether "Gillgan" was the character 's first name 15 or his last In the DVD collection , Sherwood Schwartz states that he preferred 16 the full name of"" for the character Script Execution Your program should be invoked through a single bash file (see below) with the path to the directory containing files as the argument, an integer representing how old the files should be before they are redacted, and an optional -r option to make the program behave recursively (this will always be the third argument) Example: $ assign2.bash /path/to/dir 2 -r Assignment Data A sample input file can be found in /usr/local/courses/rslavin/cs3423/Spring19/assign2 When using this data, remember that your will be made to overwrite the files. Be sure to make a backup of the files and restore them every time you run the script. Script Files Your program should consist of exactly two files: - assign2.bash - the main file which is initially invoked . Exactly one .sed file which is used for a sed invocation run in assign2.bash Verifying Your Program Your program must work for arbitrary files by applying the rules above. You can test your program with the input provided in redactme.txt and compare the output with redacted.out using diff (check the man-pages on how to use it). You should create your own test cases to test for the recursion feature. Use the touch -t command to change a file's date For this assignment, you will use sed, bash, and the other utilities you have used in class to create a program for redacting personally-identifiable information. Your program should take a path to a directory and an integer representing the number of days old a file within that directory must be to be redacted (use the date it was last modified). The program should take an optional third parameter -r, which will cause the program to operate recursively within the directory. Without this option, the program should not traverse into subdirectories This assignment requires only sed, bash, and the other utilities used so far in class. Do not use awk, Python, or any other languages/utilities Redaction Rules For all files fitting the criteria, the following changes should be made in place. No other changes should be made to the file Social Security numbers should be replaced with %%%-%%-%%%% . Phone numbers should have their digits replaced with '#, Phone numbers can take the following forms where d is a digit and s is any number of whitespace characters, including zero . Any strings between %, characters should be completely removed, including the % char acter. You may assume such instances will not span multiple lines - Any line beginning with 'followed by one or more spaces should have the line "* ATTENTION *" (note the single spaces around "ATTENTION") preceded by a blank line and followed by a blank line Dates of the form "DD/MM/YYYY should be converted to "YYYY-MM-DD" Days and months will not be zero-padded before or after they are updated Example Original redactme.txt 1 Cast and characters 2 Bob Denver is Gilligan, the inept, accident-prone First Mate 3 (affectionately known as "Little Buddy" by "the Skipper") of the SS Minnow 4 Denver was not the first choice to play Gilliganactor Jerry Van Dyke, phone 5 210-222-3333, was offered the role on 2/11/1963, but he turned it down 6 believing that the show would never be successful. He chose instead to play the 7 lead in My Mother the Car, which premiered the following year and was cancelled 8 after one season. The producers looked to Bob Denver the actor who had played 9 Maynard G. Krebs, ss #111-22-3333, the goofy but lovable beatnik in The Many 10 Loves of Dobie Gil lis. None of the show's episodes ever specified Gilligan 's 11 fu name or clearly indicated whether " Gilligan " was the character 's first name 12 or his last. In the DVD collection , Sherwood Schwartz states that he preferred 13 the full name of "%Willy Gilligan%" for the character Redacted Version of redactme.txt: 1 Cast and characters 3 ATTENTION 5 Bob Denver is Gilligan, the inept, accident-prone First Mate 6 affectionately known as Little Buddy" by "the Skipper") of the SS Minnow 7 Denver was not the first choice to play Gilligan actor Jerry Van Dyke, phone 8 ##+# ##--###was offered the role on 1963-11-2, but he turned it down , 9 believing that the show would never be successful. He chose instead to play the 10 ead in My Mother the Car, which premiered the following year and was cancelled 11 after one season. The producers looked to Bob Denver the actor who had played 12 Maynard G. Krebs, ss #%%%-969g%%%% the goofy but lovable beatnik in The Many 13 Loves of Dobie Gillis. None of the show's episodes ever specified Gilligan 's 14 ful name or clearly indicated whether "Gillgan" was the character 's first name 15 or his last In the DVD collection , Sherwood Schwartz states that he preferred 16 the full name of"" for the character Script Execution Your program should be invoked through a single bash file (see below) with the path to the directory containing files as the argument, an integer representing how old the files should be before they are redacted, and an optional -r option to make the program behave recursively (this will always be the third argument) Example: $ assign2.bash /path/to/dir 2 -r Assignment Data A sample input file can be found in /usr/local/courses/rslavin/cs3423/Spring19/assign2 When using this data, remember that your will be made to overwrite the files. Be sure to make a backup of the files and restore them every time you run the script. Script Files Your program should consist of exactly two files: - assign2.bash - the main file which is initially invoked . Exactly one .sed file which is used for a sed invocation run in assign2.bash Verifying Your Program Your program must work for arbitrary files by applying the rules above. You can test your program with the input provided in redactme.txt and compare the output with redacted.out using diff (check the man-pages on how to use it). You should create your own test cases to test for the recursion feature. Use the touch -t command to change a file's date