Linux skills

# print a file and show only two decimal digits for floating-point numbers
awk 'BEGIN{FS=OFS="\t"} {
    for(i=1; i<=NF; i++) {
        if ($i ~ /^[-+]?[0-9]*\.?[0-9]+$/ && $i ~ /\./) {
            $i = sprintf("%.2f", $i)
        }
    }
    print
}' data.tsv | head | column -t

---
title: "20251218-Linux skills"
author: "Ryan Sun"
date: "2025-12-18"
categories: [daily, Linux]
---


# Linux skills
```bash
# print a file and show only two decimal digits for floating-point numbers
awk 'BEGIN{FS=OFS="\t"} {
    for(i=1; i<=NF; i++) {
        if ($i ~ /^[-+]?[0-9]*\.?[0-9]+$/ && $i ~ /\./) {
            $i = sprintf("%.2f", $i)
        }
    }
    print
}' data.tsv | head | column -t
```