gash/tests/variable-patterns.org

• hash-hash
• hash
• percent-percent
• percent
• percent-space

;;; 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/>.

hash-hash

  file=dir/sub/name.ext
  echo ${file##*/}

:STDOUT:

  name.ext

hash

  file=dir/sub/name.ext
  echo ${file#*/}

:STDOUT:

  sub/name.ext

percent-percent

  file=dir/sub/name.ext
  echo ${file%%/*}

:STDOUT:

  dir

percent

  file=dir/sub/name.ext
  echo ${file%/*}

:STDOUT:

  dir/sub

percent-space

  args="--prefix=/usr "
  echo ${args% *}/

:STDOUT:

  --prefix=/usr/