bash examples/software-modeling/labs/19/run.sh
python3 -c 'import runpy; n=runpy.run_path('"'"'examples/software-modeling/labs/19/check.py'"'"'); n['"'"'Period'"'"'](10,10)'
bash -n examples/software-modeling/labs/19/run.sh
cwd-independence: bash /Users/magicliang/Desktop/Programming/git/hexo-blog/examples/software-modeling/labs/19/run.sh from temporary directory
