[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Shell commands with output to string

From: Olivier Dion
Subject: Re: Shell commands with output to string
Date: Tue, 22 Feb 2022 09:27:57 -0500

On Tue, 22 Feb 2022, Zelphir Kaltstahl <> wrote:
> Hello Guile users!
> How would I run a shell command from inside Guile and get its output
> as a string, instead of the output being outputted directly? (Guile
> 3.0.8)

I use the following:

(define-module (shell utils)
  #:use-module (ice-9 format)
  #:use-module (ice-9 popen)
  #:use-module (ice-9 textual-ports))

(define (shell% proc fmt . args)
  (let* ((port (open-input-pipe (format #f "~?" fmt args)))
         (output (proc port)))
    (close-pipe port)

(define-public (shell . args)
  (apply shell% (cons get-string-all args)))

(define-public (shell$ . args)
  (apply shell% (cons get-line args)))

(shell "ls" "-l")

The $ variant is to get a single line in the output.

Olivier Dion

reply via email to

[Prev in Thread] Current Thread [Next in Thread]