summaryrefslogtreecommitdiff
path: root/tests/redir4.sub
blob: 47344554e5d5aee991f38628841d227e46af9b5d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
minus=-

# standard input
fd=0

exec 3<&$fd

read line <&3
echo from stdin: $line

# close fd 3
exec 3<&${minus}

# should give `bad fd', but exact error messages vary
# read line <&3

# standard output
fd=1

exec 4>&$fd

echo to stdout >&4

exec 4>&$minus

# should give `bad fd', but exact error messages vary
# echo to stdout >&4

unset fd

# these are ambiguous redirects
exec 3<&$fd
exec 4>&$fd

exec 3>&1 4>&2

exec >&/tmp/err-and-out
echo to stdout
echo to stderr >&2

exec 1>&3 2>&4
echo /tmp/err-and-out:
cat /tmp/err-and-out

rm /tmp/err-and-out

fd=/tmp/err-and-out
exec >&$fd
echo to stdout
echo to stderr >&2

exec 1>&3 2>&4
echo /tmp/err-and-out:
cat /tmp/err-and-out

rm /tmp/err-and-out