dealing with commandline args

TL;DR … parsing cmdline opts is pretty tedious with C
– and there is no really idiomatic way..

standard library

• getopt from <unistd.h> for simple ones
• argp from <argp.h> for complex ones
• DIY: don’t

reads:

• https://stackoverflow.com/questions/9642732/parsing-command-line-arguments-in-c