plz help me with these question

1. [20 points] Write a shell script called fixCprogram.sh which looks up every c file in the current directory for the strings printf or fprintf. If found, the script adds the statement #include at the beginning of the file but only if it doesn't already have it included. Record a screen shot which shows the result 2. [10 points] Use awk to display all files and directories in current directory that has names longer than 6 characters. Record a screen shot which shows the result. 3. [10 points] Use awk to display from /etc/passwd a list of users and their shells for those using the Korn shell or Bash. Record a screen shot which shows the result. 4. [20 points] Write a perl script called characterline.pl that accepts a string from the keyboard and then prints each character of the string on a separate line. Record a screen shot which shows the result 5. [20 points] Write a perl script called weekdays.pl that populates an array named weekday from the string SunMonTueWedThuFriSat, and then prints each day in uppercase. Record a screen shot which shows the result 6. [20 points] Write a perl script (printReverse.pl) to take a string as an input parameter, and print the string in reverse. For example if the input string is "12 234 abcd" the output should be dcba 432 21". Record a screen shot which shows the result