Easily distinguish between production, staging, and development logs.
Xshell addresses this problem directly through its powerful feature. This built-in syntax highlighting engine allows you to map specific keywords, regular expressions, and phrases to distinct colors, instantly transforming raw terminal data into an organized, readable dashboard. What is an Xshell Highlight Set?
Xshell—a powerful terminal emulator developed by NetSarang—offers a built-in feature designed to solve this exact problem: . xshell highlight sets
. By reducing cognitive load and speeding up incident response times, they are an essential configuration for anyone serious about CLI-based work. or a list of common Regex patterns to get you started?
The solution is to use word boundary anchors in your regular expression: What is an Xshell Highlight Set
There are, naturally, limits and dangers. Visual overload is real. Colors compete for attention with terminal themes, syntax highlighting, and even ambient light. Accessibility matters—colorblind users need patterns and contrasts, not only hues. Relying solely on highlights for safety is risky; they’re aids, not alarms. They should complement structured alerting systems, pagers, and metrics, not supplant them.
This comprehensive pattern highlights lines indicating failed SSH authentication attempts, along with the source IP address and port. By reducing cognitive load and speeding up incident
[Highlight Set: MyLogs] Rule1 = "ERROR" : fg=white bg=red bold Rule2 = "WARNING" : fg=yellow Rule3 = "SUCCESS" : fg=green Rule4 = "\b[0-9]+\.[0-9]+ms\b" : fg=blue underline (regex) CaseSensitive = true Enabled = true
: The feature is accessible via the Highlight Sets Dialog , where users can easily add, edit, or remove keywords on the fly.
Ensure your foreground text remains highly legible against the background color.
and give your set a descriptive name (e.g., "Log Errors" or "Cisco Syntax"). Add Keywords Select your set and click Enter the keyword you want to track. : You can enable Case Sensitive matching or use Regular Expressions