Reality Check (week 3) Solutions:

Question #1:

#!/bin/bash

read -p "Please enter pathname to search: " dirPathName

cd $dirPathName 2> /dev/null && (echo "Directory pathname $dirPathName is valid, please proceed...";read -p "Please enter a search pattern: " searchPattern; echo; echo "Here are files that contain the pattern $searchPattern"; grep -in $searchPattern $dirPathName/*;echo) || { echo "Pathname $dirPathName is not valid. Please run again...">&2;exit 2;}


echo "Task completed..."


Question #2:

#!/bin/bash

read -p "Please enter pathname to search: " dirPathName

cd $dirPathName 2> /dev/null && (echo "Directory pathname $dirPathName is valid, please proceed...";read -p "Please enter a search pattern: " searchPattern; echo; echo "Here are files that contain the pattern $searchPattern"; grep -in $searchPattern $dirPathName/*;echo) || { echo "Pathname $dirPathName is not valid. Please run again...">&2;exit 2;}

read -p "Do you want me to list contents of these files? (Y|N):" answer

if echo $answer | grep -iq y
then
    cat $(grep -in $searchPattern $dirPathName/*)
fi

echo "Task completed..."


Question #3:

#!/bin/bash

read -p "Please enter pathname to search: " dirPathName

cd $dirPathName 2> /dev/null && (echo "Directory pathname \"$dirPathName\" is valid, please proceed...";read -p "Please enter a search pattern: " searchPattern; echo; echo "Here are files that contain the pattern \"$searchPattern\""; grep -in $searchPattern $dirPathName/*;echo) || { echo "Pathname \"$dirPathName\" is not valid. Please run again...">&2;exit 2;}

read -p "Do you want me to list contents of these files? (Y|N):" answer

if echo $answer | grep -iq y
then
    cat $(grep -in $searchPattern $dirPathName/*)
fi

echo "Task completed..."