You're developing a Bash script that reads lines from a text file. If a line contains the word "error," the script should display an error message and continue reading the next line. If a line contains the word "success," it should display a success message and break out of the loop. For all other lines, it should display a generic message. Which code snippet correctly implements this behavior using a while loop?0.5 Markswhile IFS= read -r line; doif [[ "$line" =~ "error" ]]; thenecho "Error: $line"elif [[ "$line" =~ "success" ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txtwhile read -r line; doif [[ "$line" =~ "error" ]]; thenecho "Error: $line"elif [[ "$line" =~ "success" ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txtwhile read -r line; doif [[ "$line" == *"error"* ]]; thenecho "Error: $line"elif [[ "$line" == *"success"* ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txtwhile IFS= read -r line; doif [[ "$line" == *error* ]]; thenecho "Error: $line"elif [[ "$line" == *success* ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txt
Question
You're developing a Bash script that reads lines from a text file. If a line contains the word "error," the script should display an error message and continue reading the next line. If a line contains the word "success," it should display a success message and break out of the loop. For all other lines, it should display a generic message. Which code snippet correctly implements this behavior using a while loop?0.5 Markswhile IFS= read -r line; doif [[ "line"elif [[ "line"breakelseecho "Info: line" =~ "error" ]]; thenecho "Error: line" =~ "success" ]]; thenecho "Success: line"fidone < file.txtwhile read -r line; doif [[ "line"elif [[ "line"breakelseecho "Info: line" == error ]]; thenecho "Error: line" == success ]]; thenecho "Success: line"fidone < file.txt
Solution
The correct code snippet that implements the desired behavior using a while loop in Bash is:
while IFS= read -r line; do
if [[ "$line" == *"error"* ]]; then
echo "Error: $line"
elif [[ "$line" == *"success"* ]]; then
echo "Success: $line"
break
else
echo "Info: $line"
fi
done < file.txt
This script reads lines from a file named file.txt. For each line, it checks if the line contains the word "error" or "success". If it contains "error", it prints an error message. If it contains "success", it prints a success message and breaks the loop. For all other lines, it prints a generic message.
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