Stop fighting BSD vs GNU differences. Caro detects your target platform and generates POSIX-compliant commands that work on Mac, Linux, and in CI pipelines—first time, every time.
What you hire Caro to do
Generate commands that work on Mac, Linux, and BSD without modification.
Trigger: Writing CI pipeline or SSHing to different OS
Generate multi-command sequences validated for safety before execution.
Trigger: Creating deployment or maintenance scripts
Describe what you want, get the exact command syntax instantly.
Trigger: Can't remember the exact flags for a command
Commands you write on Mac break on Linux servers
| Task | macOS (BSD) | Linux (GNU) | Gotcha |
|---|---|---|---|
| Find files modified in last hour | find . -mtime -1h -type f | find . -mmin -60 -type f | BSD find uses -mtime -1h, GNU find uses -mmin |
| Sort by column numerically | sort -t, -k2 -n | sort -t, -k2,2 -n | BSD sort doesn't need field end specifier |
| Extended regex in sed | sed -E 's/pattern/replace/' | sed -r 's/pattern/replace/' | -E (BSD) vs -r (GNU) for extended regex |
| Get file modification time | stat -f %m file.txt | stat -c %Y file.txt | Completely different format flags |
| Watch command output | watch is not built-in | watch -n 1 command | macOS needs brew install watch |
| Check listening ports | lsof -i -P | grep LISTEN | ss -tlnp | Different tools for same task |
Common DevOps tasks, generated and validated
Check deployment status across services
Find error patterns across multiple log files
Remove unused Docker resources safely
docker image prune -a --filter "until=168h" Verify all required services are running
Find certificates expiring soon
List resources in Terraform state
Stop Googling. Just describe what you want.
find . -type f -size +100M -exec ls -lh {} \; du -sh */ | sort -rh | head -10 ss -tlnp ps aux --sort=-%mem | head -10 find /var/log -name "*.log" -mtime +7 -exec gzip {} \; git branch -a --sort=-committerdate | head -20 find . -type f -exec md5sum {} \; | sort | uniq -d -w32 inotifywait -m -r -e modify,create,delete . dig +short example.com && nslookup example.com netstat -ant | awk '{print $6}' | sort | uniq -c | sort -rn find . -type f -mtime 0 docker inspect -f '{{.Name}} - {{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $(docker ps -q) Install Caro and try:
caro "show me what's using port 8080" caro "find all yaml files with 'production' in them" caro "show docker containers by memory usage" Commands that work in GitHub Actions, GitLab CI, Jenkins
caro --posix "your task" Forces POSIX-compliant output that works in any sh-compatible environment.
caro --target linux "your task" Generate commands for your CI runner's OS, not your dev machine.
caro --output json "your task" Machine-readable output for integration with other tools.
No account. No API key. No data collection. Just safer shell commands.
bash <(curl --proto '=https' --tlsv1.2 -sSfL https://setup.caro.sh) Then run:
caro "find files modified in the last 7 days" Prefer to build from source? See all installation options →