Write a shell script which uses the "bash" shell called ZZ012_script.sh The resulting script being run will produce output similar to the terminal screenshot below. The bold text represents input to be entered in by the user running the script. The USER HOST in the first line represent place holders for the information which will reflect the username of the person running the script and the host where the script is being run. The XX:XX:XX XX and XX/XX/XXXX in the first line represent place holders and format of the information which will reflect the time and date the script is run. The shell script does not need to be compiled.

$ ./hynes_script.sh auth.log OR $ ./hynes_script.sh Enter the log filename auth.log USER ran this script on HOST at XX:XX:XX XX on XX/XX/XXXX: File directory.txt has the list of the current directory. The auth.log file has 297377 lines. Now searching auth.log file. Putting search results in the report.txt file. File new_directory.txt has the list of the current directory. File reverse.txt has reverse sort of new_directory.txt file. File changes.txt has the differences between the directory list files. The script is done!

Requirements

• Put the first line of information in the report.txt file.
• Put a list the directory contents using long listing format to directory.txt file.
• Print out the line count for the auth.log file.
• Search the auth.log for the number of times the following phrases are found:
  • Invalid user
  • oleg from 187.144.46.203
  • oleg from
  • Bye Bye
  • Authentication failure
  • Accepted keyboard-interactive/pam
• Put the results of those searches in report.txt
• Put a list the directory contents using long listing format to new_directory.txt file.
• Sort the contents of new_directory.txt in reverse order put the results in reverse.txt file.
• Use a command to compare the difference between new_directory.txt and directory.txt files put output from that command in changes.txt file.

#!/bin/bash # NAME file=$1 if [ ! $1 ] then echo "Enter the log filename" read file echo "" if [ ! -f $file ] then echo "Error" exit 1 fi fi echo "The script is done!" Inside report.txt nicolehy ran this script on shell at 12:06:24 PM on 02/03/2020: The auth.log file has 297377 lines. There were 146929 'Invalid user' logged. There were 9778 'oleg from 187.144.46.203' logged. There were 9778 'oleg from' logged. There were 303 'Bye Bye' logged. There were 96 'Authentication failure' logged. There were 41 'Accepted keyboard-interactive/pam' logged.