The Disk Usage Alert Script monitors the disk usage of a specified directory or partition and alerts the user if the usage exceeds a predetermined threshold. This script is useful for learning about disk space management, conditional logic in Bash, and extracting specific data from command output.

• Monitors disk usage of a specified directory or partition.
• Alerts if usage exceeds the user-defined threshold.
• Demonstrates usage of df, grep, awk, and conditional statements.

• Bash shell
• Basic command line utilities (df, grep, awk)

Follow these steps to use the script:

1. Make the script executable:

chmod +x disk-usage-alert.sh

2. Run the script and follow the prompts:

./disk-usage-alert.sh

• The script prompts the user for a directory or partition to monitor and a threshold for disk usage alerts.
• It uses the df -h command to get the current disk usage percentage for the specified directory or partition. The grep, awk, and sed utilities are used to extract and clean up the necessary information from the df command output.
• A conditional statement checks if the current disk usage exceeds the threshold. If it does, the script prints an alert message to the console; otherwise, it informs the user that the disk usage is within acceptable limits.

• Ensure the directory or partition path and threshold are correctly entered to avoid false alerts or missed alerts.
• The script provides a basic alert mechanism through console messages. For more advanced monitoring, consider integrating email notifications or logging.
• Regular monitoring can help prevent disk space issues before they impact system performance or availability.