package drom_lib

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val call : ?stdout:Unix.file_descr -> string array -> unit
val call_get_fst_line : string -> string option

run a cmd and return the first line of output

val wget : url:string -> output:string -> unit
val hook : ?args:string list -> string -> unit
val before_hook : ?args:string list -> string -> unit
val after_hook : ?args:string list -> string -> unit