FileTail

Modern tail -f with live grep, color-coded log levels, and alerting.

Install

npm install -g @arc2898/filetail

Commands

filetail tail <file>

Follow a log file with live filtering.

filetail tail /var/log/app.log
filetail tail /var/log/app.log --grep "ERROR"
filetail tail /var/log/app.log --levels ERROR,WARN,INFO
filetail tail /var/log/app.log --json

filetail alert <file>

Watch file and trigger shell command on pattern match.

filetail alert /var/log/app.log --match "ERROR" --command "echo 'Error found!'"
filetail alert /var/log/app.log --match "FATAL" --command "say 'Fatal error'" --once

Features

• Color-coded log levels: ERROR (red), WARN (yellow), INFO (cyan), DEBUG (gray)
• Live grep filtering: --grep to include, --ignore to exclude
• JSON log parsing: --json to parse structured logs
• Alert mode: run any shell command when pattern matches
• Works on Windows and Unix

License

MIT