Implementation for excersise 2

Author Name: Ilias Loukopoulos

Search ERROR occurencies in log

Overview

This Bash script is designed to analyze a log file and count the occurrences of the word "ERROR" within it. The script takes a log file named random.log as input, searches for the word "ERROR," and then outputs the number of occurrences.

Usage

To use the script, follow these steps:

1. Ensure that the script has execute permissions. If not, run the following command:

   chmod +x script_name.sh

2. Execute the script:

   ./script_name.sh

3. The script will display the number of times the word "ERROR" appears in the random.log file.

Log File Format

The script expects a log file with entries in the following format:

YYYY-MM-DD HH:mm:ss LEVEL: Log message
YYYY-MM-DD HH:mm:ss LEVEL: Log message
YYYY-MM-DD: Date in the format Year-Month-Day.

Output

The script outputs a message indicating the number of occurrences of the word "ERROR" in the log file:

ERROR word appears 5 times in the random.log file

Notes

• The script uses the grep command to search for the word "ERROR" in the log file and then utilizes wc -l to count the occurrences.
• Ensure that the log file (random.log) is present in the same directory as the script or provide the full path if located elsewhere.