tldr/pages/common/bb.md

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# bb
> Native Clojure interpreter for scripting.
> More information: <https://book.babashka.org/#usage>.
- [e]valuate an expression:
`bb -e "(+ 1 2 3)"`
- Evaluate a script [f]ile:
`bb -f {{path/to/script.clj}}`
- Bind [i]nput to a sequence of lines from `stdin`:
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`printf "first\nsecond" | bb -i "(map clojure.string/capitalize *input*)"`
- Bind [I]nput to a sequence of EDN (Extensible Data Notation) values from `stdin`:
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`echo "{:key 'val}" | bb -I "(:key (first *input*))"`