SWATCH (Simple WATCHer)

Swatch: Free Log File Monitoring Tool

SWATCH is a free, open source tool for monitoring log files and triggering alerts based on user-defined patterns. It can monitor multiple log files simultaneously and send notifications when specific events occur.

What is SWATCH (Simple WATCHer)?

SWATCH (Simple WATCHer) is a versatile log file monitoring and notification tool for Unix and Unix-like systems. It allows system administrators and users to monitor system logs, files, and other data sources in near real-time, watching for specific conditions and patterns. When SWATCH detects something of interest, it can trigger configurable notifications, alerts, and automated responses.

SWATCH performs log file or data monitoring using a flexible ruleset. Rules can match text strings, regular expressions, or differences between successive log entries. When a rule matches, SWATCH can execute actions including: sending email, SMS, or other messages; executing scripts or commands; writing to files, logs, databases; and more. SWATCH rules and notifications can be fully customized to monitor any discernible activity from any log or data source.

Some key features and capabilities of SWATCH include:

• Monitor any plain text log file or data stream
• Match conditions using strings, regexes, or numerical comparisons
• Trigger customizable alerts and notifications
• Automate responses such as executing scripts
• Monitor single or multiple logs and data sources
• Easy to install from source or packages
• Configure via config file/s for version control

With its highly flexible ruleset configuration, SWATCH allows for monitoring of virtually any application, service, system, or access logs. It is commonly used to monitor web, database, security, network, and authentication logs and data sources across Unix and Linux systems.

SWATCH (Simple WATCHer) Features

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