api: "YAML JSON TOON Database"
version: 1.0.0
format: json
dataset:
  slug: awk-reference
  title: "AWK Reference"
  description: "Essential AWK commands, built-in variables, and common patterns."
  category: "Unix Commands"
  category_slug: unix-commands
  tags: "unix,awk,text-processing,scripting"
  view_count: 0
data
  [8]{pattern,command,description}:
    "Print columns","awk '{print $1, $3}'","Print the 1st and 3rd fields of each line."
    "Field separator","awk -F: '{print $1}' /etc/passwd","Use colon as delimiter; print 1st field."
    "Built-in variables","NR, NF, FS, OFS, RS, ORS, FILENAME","NR=record number, NF=field count, FS=OFS=field sep, RS=record sep."
    "Conditional print","awk '$3 > 100 {print $1}'","Print $1 only when $3 exceeds 100."
    "Sum a column","awk '{sum += $2} END {print sum}'","Accumulate sum of column 2 and print at END."
    "Pattern matching","awk '/error/ {print}' log.txt","Print lines matching the regex /error/."
    Functions,"length(), sub(), gsub(), split(), systime()","Built-in string and time functions."
    "Multi-character FS","awk -v FS=\"\\t\" '{print $2}'","Set field separator to tab using -v flag."