Debug

Trace errors in log files, parse stack traces, detect memory leaks, profile slow code paths.

Commands

trace

Find error patterns in log files.

bash scripts/script.sh trace /var/log/app.log
bash scripts/script.sh trace --pattern "OOM\|Segfault\|FATAL" /var/log/syslog
bash scripts/script.sh trace --last 1h /var/log/app.log

stacktrace

Parse and summarize a stack trace or crash dump.

bash scripts/script.sh stacktrace crash.log
echo "TypeError: cannot read property 'x' of undefined\n    at foo (app.js:42)" | bash scripts/script.sh stacktrace -

leaks

Detect potential memory leaks by analyzing process memory over time.

bash scripts/script.sh leaks --pid 1234
bash scripts/script.sh leaks --pid 1234 --duration 60 --interval 5

profile

Measure execution time of a command, show CPU and memory usage.

bash scripts/script.sh profile "python3 slow_script.py"
bash scripts/script.sh profile --repeat 5 "curl -s https://api.example.com"

diff-logs

Compare two log files and highlight differences (new errors, missing entries).

bash scripts/script.sh diff-logs before.log after.log
bash scripts/script.sh diff-logs --errors-only old.log new.log

http

Debug HTTP requests — show headers, timing, redirects, SSL info.

bash scripts/script.sh http https://example.com
bash scripts/script.sh http --verbose --timing https://api.example.com/health

Output

• Plain text summary to stdout
• Error counts, unique patterns, timestamps
• Exit code 0 = clean, 1 = errors found

Requirements

• bash 4+
• python3 (standard library only)

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