#! /bin/bash
VERTICAL_HEADERS=(
  "Cyclomatic complexity"
  "Source lines of code"
  "Maintainability index"
  "Number of Arguments"
  "Maximum Nesting"
  "Technical Debt"
)

for header in "${VERTICAL_HEADERS[@]}"; do
    sed "/:/! s/$header/\\\rot{$header}/g" metrics.tex > tmp; mv tmp metrics.tex
done