tests/appendop2.sub

   1 #   This program is free software: you can redistribute it and/or modify
   2 #   it under the terms of the GNU General Public License as published by
   3 #   the Free Software Foundation, either version 3 of the License, or
   4 #   (at your option) any later version.
   5 #
   6 #   This program is distributed in the hope that it will be useful,
   7 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
   8 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9 #   GNU General Public License for more details.
  10 #
  11 #   You should have received a copy of the GNU General Public License
  12 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  13 #
  14 POSIXLY_CORRECT=1
  15 x=2
  16 x+=5 eval printf '"$x "'
  17 echo "$x"
  18
  19 unset x
  20 typeset -i x=2
  21 x+=5 eval printf '"$x "'
  22 echo "$x"
  23
  24 a=1
  25 a+=4
  26 echo $a
  27
  28 # idiotically, ksh93 makes these two cases differ (?)
  29 a+=5 printenv a
  30 a+=5 eval printf '"$a "'
  31 echo $a