module Sys_utils: Sys_utils
val get_editor : unit -> string option
val get_editor_exn : unit -> string
val get_pager : unit -> string option
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.Std.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.
Returns `Ok
or `Abort
. If `Abort
is returned the files was not modified
(or created).
create
: create the file if it doesn't exists. Default true
check
: a function returning a text representing the error in the file.module Sexp_checked_edit:
module Cpu_use:sig
..end
module Lsb_release:sig
..end