tests/redir.tests

   1 export LC_ALL=C
   2 export LANG=C
   3
   4 # catch-all for remaining untested redirection stuff
   5 set +o posix
   6
   7 echo abc > /tmp/redir-test
   8 cat /tmp/redir-test
   9
  10 set -o noclobber
  11
  12 #this should be an error
  13 echo def > /tmp/redir-test
  14 cat /tmp/redir-test
  15
  16 # but this should succeed
  17 echo def > /tmp/redir-test-2
  18 cat /tmp/redir-test-2
  19
  20 # and so should this
  21 echo def >| /tmp/redir-test
  22 cat /tmp/redir-test
  23
  24 set +o noclobber
  25 rm /tmp/redir-test /tmp/redir-test-2
  26
  27 # this should be an error
  28 z="a b"
  29 cat < $z
  30
  31 echo "Point 1"
  32
  33 exec 3</etc/passwd
  34 exec 4>/tmp/bash-a
  35 exec 5>/tmp/bash-b
  36 echo "Point 2"
  37
  38 echo to a 1>&4
  39 echo to b 1>&5
  40 cat /tmp/bash-a
  41 cat /tmp/bash-b
  42 exec 11</dev/null
  43 echo "Point 3"
  44
  45 echo to a 1>&4
  46 echo to b 1>&5
  47 cat /tmp/bash-a
  48 cat /tmp/bash-b
  49
  50 exec 11<&-
  51 echo "Point 4"
  52
  53 exec 6<>/tmp/bash-c
  54 echo to c 1>&6
  55 cat /tmp/bash-c
  56 echo "Point 5"
  57
  58 rm -f /tmp/bash-a /tmp/bash-b /tmp/bash-c
  59
  60 #
  61 # Test the effect of input buffering on the shell's input
  62 #
  63 ${THIS_SH} < redir1.sub
  64
  65 # more open, close, duplicate file descriptors
  66 ${THIS_SH} ./redir3.sub < ./redir3.in1
  67
  68 # still more redirections
  69 ${THIS_SH} ./redir4.sub < redir4.in1
  70
  71 # various forms of null redirection
  72 testf()
  73 {
  74         if [ -f "$1" ]; then
  75                 rm -f "$1"
  76         else
  77                 echo oops -- $1 not found
  78         fi
  79 }
  80
  81 > /tmp/null-redir-a
  82 testf /tmp/null-redir-a
  83
  84 $EXIT > /tmp/null-redir-b
  85 testf /tmp/null-redir-b
  86
  87 ( > /tmp/null-redir-c )
  88 testf /tmp/null-redir-c
  89
  90 $EXIT > /tmp/null-redir-d &
  91 wait
  92 testf /tmp/null-redir-d
  93
  94 exit 3 | $EXIT > /tmp/null-redir-e
  95 echo $? -- ${PIPESTATUS[@]}
  96 testf /tmp/null-redir-e
  97
  98 exit 4 | > /tmp/null-redir-f
  99 echo $? -- ${PIPESTATUS[@]}
 100 testf /tmp/null-redir-f
 101
 102 > /tmp/null-redir-g &
 103 wait
 104 testf /tmp/null-redir-g
 105
 106 exec >/tmp/null-redir-h &
 107 wait
 108 testf /tmp/null-redir-h
 109
 110 # make sure async commands don't get /dev/null as stdin when an explicit
 111 # input redirection is supplied
 112 for x in 1 2 3; do
 113         { read line ; echo $line ; } &
 114         wait
 115         { read line ; echo $line ; } &
 116         wait
 117 done << EOF
 118 ab
 119 cd
 120 ef
 121 gh
 122 ij
 123 kl
 124 EOF
 125
 126 # make sure async commands get /dev/null as stdin in the absence of any
 127 # input redirection
 128 /bin/cat &
 129 wait
 130 echo $?
 131
 132 # make sure that loops work OK with here documents and are not run in
 133 # subshells
 134 while read line; do
 135         echo $line
 136         l2=$line
 137 done << EOF
 138 ab
 139 cd
 140 EOF
 141 echo $l2
 142
 143 # These should not echo anything -- bug in versions before 2.04
 144 ( ( echo hello 1>&3 ) 3>&1 ) >/dev/null 2>&1
 145
 146 ( ( echo hello 1>&3 ) 3>&1 ) >/dev/null 2>&1 | cat
 147
 148 # in posix mode, non-interactive shells are not allowed to perform
 149 # filename expansion on input redirections, even if they expand to
 150 # a single filename
 151 set -o posix
 152 cat < redir1.*