2019-11-25 18:21:29 +00:00
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;;; Gash -- Guile As SHell
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;;; Copyright © 2019 Timothy Sample <samplet@ngyro.com>
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;;;
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;;; This file is part of Gash.
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;;;
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;;; Gash is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation, either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; Gash is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Gash. If not, see <http://www.gnu.org/licenses/>.
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* Reads a single variable
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:script:
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#+begin_src sh
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echo foo | {
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read x
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echo $x
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}
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#+end_src
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:stdout:
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#+begin_example
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foo
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#+end_example
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* Reads multiple variables
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:script:
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#+begin_src sh
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echo foo bar | {
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read x y
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echo $x
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echo $y
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}
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#+end_src
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:stdout:
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#+begin_example
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foo
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bar
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#+end_example
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* Handles more variables than fields
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:script:
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#+begin_src sh
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echo foo bar baz | {
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read x y
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echo $x
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echo $y
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}
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#+end_src
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:stdout:
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#+begin_example
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foo
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bar baz
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#+end_example
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* Handles more fields than variables
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:script:
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#+begin_src sh
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echo foo | {
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read x y
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echo $x
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echo $y
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}
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#+end_src
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:stdout:
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#+begin_example
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foo
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#+end_example
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* Trims whitespace in extra fields
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:script:
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#+begin_src sh
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echo foo bar 'baz ' | {
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read x y
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echo $x
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echo $y
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}
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#+end_src
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:stdout:
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#+begin_example
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foo
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bar baz
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#+end_example
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2019-11-25 21:59:36 +00:00
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* Allows escaping line breaks
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:script:
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#+begin_src sh
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echo 'foo\
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bar' | {
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read x
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echo $x
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}
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#+end_src
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:stdout:
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#+begin_example
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foobar
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#+end_example
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* Understands raw input flag
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:script:
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#+begin_src sh
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echo 'foo\
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bar' | {
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read -r x
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echo $x
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}
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#+end_src
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:stdout:
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#+begin_example
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foo\
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#+end_example
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