tools/regression/bin/sh/builtins/var-assign.0

   1 # $FreeBSD$
   2 IFS=,
   3
   4 SPECIAL="break,\
   5         :,\
   6         continue,\
   7         . /dev/null,
   8         eval,
   9         exec,
  10         export -p,
  11         readonly -p,
  12         set,
  13         shift 0,
  14         times,
  15         trap,
  16         unset foo"
  17
  18 UTILS="alias,\
  19         bg,\
  20         bind,\
  21         cd,\
  22         command echo,\
  23         echo,\
  24         false,\
  25         fc -l,\
  26         fg,\
  27         getopts a var,\
  28         hash,\
  29         jobs,\
  30         printf a,\
  31         pwd,\
  32         read var < /dev/null,\
  33         test,\
  34         true,\
  35         type ls,\
  36         ulimit,\
  37         umask,\
  38         unalias -a,\
  39         wait"
  40
  41 set -e
  42
  43 # For special built-ins variable assignments affect the shell environment.
  44 set -- ${SPECIAL}
  45 for cmd in "$@"
  46 do
  47         ${SH} -c "VAR=1; VAR=0 ${cmd}; exit \${VAR}" >/dev/null 2>&1
  48 done
  49
  50 # For other built-ins and utilites they do not.
  51 set -- ${UTILS}
  52 for cmd in "$@"
  53 do
  54         ${SH} -c "VAR=0; VAR=1 ${cmd}; exit \${VAR}" >/dev/null 2>&1
  55 done