package core_extended

  1. Overview
  2. Docs
package core_extended
Legend:
Library
Module
Module type
Parameter
Class
Class type

Various system utility functions.

val get_editor : unit -> string option

Get the default editor (program) for this user. This functions checks the EDITOR and VISUAL environment variables and then looks into a hard coded list of editors.

val get_editor_exn : unit -> string
val get_pager : unit -> string option

Analogous to get_editor, defaulting to a list including less and more.

val page_contents : ?pager:string -> ?pager_options:string list -> ?tmp_name:string -> string -> unit

page_contents ?pager ?tmp_name str will show str in a pager. The optional tmp_name parameter gives the temporary file prefix. The temporary file is removed after running.

val pid_alive : Core.Pid.t -> bool
val get_groups : string -> string list
val with_tmp : pre:string -> suf:string -> (string -> 'a) -> 'a

with_tmp pre suf f creates a temp file, calls f with the file name, and removes the file afterwards.

val diff : ?options:string list -> string -> string -> string

diff s1 s2 returns diff (1) output of the two strings. Identical files returns the empty string. The default value of options is "-d -u", to provide shorter, unified diffs.

val ip_of_name : string -> string

ip_of_name hostname looks up the hostname and prints the IP in dotted-quad format.

val getbyname_ip : unit -> string

getbyname_ip () returns the IP of the current host by resolving the hostname.

val ifconfig_ips : unit -> Core.String.Set.t

ifconfig_ips () returns IPs of all active interfaces on the host by parsing ifconfig output. Note that this will include 127.0.0.1, assuming lo is up.

val checked_edit : ?create:bool -> check:(string -> string option) -> string -> [ `Abort | `Ok ]

checked_edit ~check file

Edit a file in safe way, like vipw(8). Launches your default editor on file and uses check to check its content.

  • parameter check

    a function returning a text representing the error in the file.

  • parameter create

    create the file if it doesn't exists. Default true

  • returns

    `Ok or `Abort. If `Abort is returned the files was not modified (or created).

module Sexp_checked_edit (S : Core.Sexpable) : sig ... end

Edit files containing sexps.

module Cpu_use : sig ... end

A module for getting a process's CPU use.

module Lsb_release : sig ... end
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct