You want to write a shell script that reads a filename from the user and prints "File exists" if it exists. Which snippet correctly implements this?

hard🚀 Application Q9 of 15

Bash Scripting - Basics

A#!/bin/bash read -p "Enter filename: " file if [ -e "$file" ]; then echo "File exists" fi

B#!/bin/bash read file if [ -f file ]; then echo "File exists" fi

C#!/bin/bash read -p "Enter filename: " file if [ -d $file ]; then echo "File exists" fi

D#!/bin/bash read -p "Enter filename: " file if [ -e file ]; then echo "File exists" fi

Step-by-Step Solution

Solution:

Step 1: Use read with prompt and variable
read -p "Enter filename: " file correctly reads input into variable file.
Step 2: Test file existence with -e and quote variable
Use [ -e "$file" ] to check if file exists, quoting variable to handle spaces.
Final Answer:
#!/bin/bash read -p "Enter filename: " file if [ -e "$file" ]; then echo "File exists" fi -> Option A
Quick Check:
Proper input and file test syntax = #!/bin/bash read -p "Enter filename: " file if [ -e "$file" ]; then echo "File exists" fi [OK]

Quick Trick: Quote variables in tests to handle spaces [OK]

Common Mistakes:

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