| # Manual opt parsing example | |
| # | |
| # Features: | |
| # - supports short and long flags (ie: -v|--verbose) | |
| # - supports short and long key/value options (ie: -f <file> | --filename <file>) | |
| # - supports short and long key/value options with equals assignment (ie: -f=<file> | --filename=<file>) | |
| # - does NOT support short option chaining (ie: -vh) | |
| # - everything after -- is positional even if it looks like an option (ie: -f) | |
| # - once we hit an arg that isn't an option flag, everything after that is considered positional | |
| function optparsing_demo() { |
This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.
| Description | Syntax |
|---|---|
| Get the length of a string | ${#VARNAME} |
| Get a single character | ${VARNAME[index]} |