Megatest

(define (get-uname . params)
  (let* ((uname-res (cmd-run->list (conc "uname " (if (null? params) "-a" (car params)))))
	 (uname #f))
    (if (null? (car uname-res))
	"unknown"
	(caar uname-res))))
	      
(define (save-environment-as-files fname)
(define (save-environment-as-files fname #!key (ignorevars (list "DISPLAY" "LS_COLORS" "XKEYSYMDB" "EDITOR")))
  (let ((envvars (get-environment-variables))
        (whitesp (regexp "[^a-zA-Z0-9_\\-:;,.\\/%$]")))
     (with-output-to-file (conc fname ".csh")
       (lambda ()
          (for-each (lambda (key)
		      (if (not (member key ignorevars))
                      (let* ((val (cdr key))
                             (sval (if (string-search whitesp val)(conc "\"" val "\"") val)))
                        (print "setenv " (car key) " " sval)))
                     envvars)))
			  (let* ((val (cdr key))
				 (sval (if (string-search whitesp val)(conc "\"" val "\"") val)))
			    (print "setenv " (car key) " " sval))))
		      envvars)))
     (with-output-to-file (conc fname ".sh")
       (lambda ()
          (for-each (lambda (key)
		      (if (not (member key ignorevars))
                      (let* ((val (cdr key))
                             (sval (if (string-search whitesp val)(conc "\"" val "\"") val)))
                         (print "export " (car key) "=" sval)))
			  (let* ((val (cdr key))
				 (sval (if (string-search whitesp val)(conc "\"" val "\"") val)))
			    (print "export " (car key) "=" sval))))
                    envvars)))))

;; set some env vars from an alist, return an alist with original values
;; (("VAR" "value") ...)
(define (alist->env-vars lst)
  (if (list? lst)
      (let ((res '()))