;;; Gash -- Guile As SHell
;;; Copyright © 2016, 2017, 2018 R.E.W. van Beusekom <rutger.van.beusekom@gmail.com>
;;; Copyright © 2018, 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2019 Timothy Sample <samplet@ngyro.com>
;;;
;;; This file is part of Gash.
;;;
;;; Gash is free software: you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation, either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; Gash is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Gash.  If not, see <http://www.gnu.org/licenses/>.

* for-substitution
:script:
#+begin_src sh
  for file in `echo foo.o bar.o`; do
      echo compiling $file...
  done
#+end_src
:stdout:
#+begin_example
  compiling foo.o...
  compiling bar.o...
#+end_example

* substitution-assignment-at
:script:
#+begin_src sh
  cmdline=$(echo " $@")
  echo cmdline:$cmdline
#+end_src
:args: ("-s" "--long" "file0" "file1")
:stdout:
#+begin_example
  cmdline: -s --long file0 file1
#+end_example

* substitution-assignment
:script:
#+begin_src sh
  echo=$(echo 1 2 3)
  echo echo=$echo
#+end_src
:stdout:
#+begin_example
  echo=1 2 3
#+end_example

* substitution-backtick
:script:
#+begin_src sh
  echo `echo 1 2 3`
#+end_src
:stdout:
#+begin_example
  1 2 3
#+end_example

* substitution-redirect
:script:
#+begin_src sh
  echo $(echo foo bar baz 2>/dev/null)
#+end_src
:stdout:
#+begin_example
  foo bar baz
#+end_example

* substitution
:script:
#+begin_src sh
  echo $(echo 1 2 3)
#+end_src
:stdout:
#+begin_example
  1 2 3
#+end_example

* substitution-word
:script:
#+begin_src sh
  echo foo $(echo bar)/baz
#+end_src
:stdout:
#+begin_example
  foo bar/baz
#+end_example