From: Remi VANICAT <vanicat@labri.u-bordeaux.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Ocaml equivalent of python's
Date: 06 Feb 2002 19:15:43 +0100 [thread overview]
Message-ID: <87heouschc.dlv@wanadoo.fr> (raw)
In-Reply-To: <20020206140335.GA27734@adept.co.za>
Johann Spies <jspies@sun.ac.za> writes:
> I have tried
> -------------------------------------------------
> # let listing = Unix.execv "ls -laprt";;
> val listing : string array -> unit = <fun>
> # let l = Array.to_list listing;;
> This expression has type string array -> unit but is here used with
> type
> 'a array
> -------------------------------------------------
Unix.execv is a raw interface to the exec unix system call.
You should use the "High-level process and redirection management"
function :
let reading = open_process_in "ls -laprt";;
then reading is a in_channel that you can read with the General input
functions of the core library.
for example if you want the list of the line :
let rec list_of_line file_in =
try
let line = input_line file in in
line :: (list_of_line file_in)
with
| End_of_file -> []
but stream may be more useful than list to manipulate information
from a channel
(and the Directories function of the Unix library are more useful
than this list, if you want to know what is in a directory)
--
Rémi Vanicat
vanicat@labri.u-bordeaux.fr
http://dept-info.labri.u-bordeaux.fr/~vanicat
-------------------
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
next prev parent reply other threads:[~2002-02-06 18:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-06 14:03 Johann Spies
2002-02-06 18:07 ` Xavier Leroy
2002-02-07 6:30 ` Johann Spies
2002-02-06 18:15 ` Remi VANICAT [this message]
2002-02-07 9:14 ` Nicolas barnier
2002-02-08 2:20 ` Julian Assange
2002-02-08 20:29 ` Chris Hecker
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87heouschc.dlv@wanadoo.fr \
--to=vanicat@labri.u-bordeaux.fr \
--cc=caml-list@inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).