tests/new-exp2.sub

   1 export LC_ALL=C
   2 export LANG=C
   3
   4 # test out the new $(< filename) code
   5 # it should be exactly equivalent to $(cat filename)
   6
   7 FILENAME=/tmp/bashtmp.x$$
   8
   9 trap 'rm -f $FILENAME' 0
  10
  11 cat >$FILENAME << EOF
  12 line 1
  13 line 2
  14 line 3
  15 EOF
  16
  17 LINES1=$(cat $FILENAME)
  18 LINES2=$(< $FILENAME)
  19
  20 if [[ $LINES1 != $LINES2 ]]; then
  21         echo 'whoops: $(< filename) failed'
  22 fi
  23
  24 LINES2=$(< /tmp/bashtmp.x*)
  25 if [[ $LINES1 != $LINES2 ]]; then
  26         echo 'whoops: $(< filename) with glob expansion failed'
  27 fi
  28
  29 # but the glob expansion in the redirection should fail in posix mode
  30 set -o posix
  31 LINES2=$(< /tmp/bashtmp.x*)
  32 set +o posix
  33
  34 # now see what happens when we try it with a non-existant file
  35 LINES3=$(< /tmp/redir-notthere)
  36 echo $?
  37
  38 # These were bugs through bash-4.2
  39 { : "$({xxxxxxxxxxxxxxxxxxxx}</dev/stdin)"; } <<<'hi'
  40 echo ${xxxxxxxxxxxxxxxxxxxx}
  41
  42 { echo "$(1111111111111111111111</dev/stdin)"; } <<<'hi'