extruder
extruder is a minimal command line tool for streaming mustache-like templates.
It supports syntax very similar to mustache, that is:
{{opens a block}}closes a block- any series of text can be inside a block
That is where the similarities end, because extruder takes everything in the block, and passes it to the system(3) system call (this executes the contents of the block using sh -c).
Usage examples
Some examples of usage:
> echo -n 'hello {{ whoami }}' | extruder
hello USER
> echo -n 'hello {{ hostname }}' | extruder
hello HOST
> echo -n 'hello {{ echo $ABC }}' | ABC=123 extruder
hello 123
And so on...