blob: f67cd00e77e118e81a1a21ad6a1ecfc958254cfc (
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
echo " a " | (read x; echo "$x.")
echo " a b " | ( read x y ; echo -"$x"-"$y"- )
echo " a b\ " | ( read x y ; echo -"$x"-"$y"- )
echo " a b " | ( read x ; echo -"$x"- )
echo " a b\ " | ( read x ; echo -"$x"- )
echo " a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
echo " a b\ " | ( read -r x ; echo -"$x"- )
echo "\ a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
echo "\ a b\ " | ( read -r x ; echo -"$x"- )
echo " \ a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
echo " \ a b\ " | ( read -r x ; echo -"$x"- )
# make sure that CTLESC and CTLNUL are passed through correctly
echo $'\001' | ( read var ; recho "$var" )
echo $'\001' | ( read ; recho "$REPLY" )
echo $'\177' | ( read var ; recho "$var" )
echo $'\177' | ( read ; recho "$REPLY" )
# make sure a backslash-quoted \\n still disappears from the input when
# we're not reading in `raw' mode, and no stray CTLESC chars are left in
# the input stream
echo $'ab\\\ncd' | ( read ; recho "$REPLY" )
echo "A B " > $TMPDIR/IN
unset x y z
read x y z < $TMPDIR/IN
echo 1: "x[$x] y[$y] z[$z]"
echo 1a: ${z-z not set}
read x < $TMPDIR/IN
echo 2: "x[$x]"
rm $TMPDIR/IN
# this is where the bash `read' behavior with respect to $REPLY differs
# from ksh93
echo "A B " > $TMPDIR/IN
read < $TMPDIR/IN
echo "[$REPLY]"
rm $TMPDIR/IN
echo " A B " > $TMPDIR/IN
read < $TMPDIR/IN
echo "[$REPLY]"
rm $TMPDIR/IN
# make sure that read with more variables than words sets the extra
# variables to the empty string
bvar=bvar
cvar=cvar
echo aa > $TMPDIR/IN
read avar bvar cvar < $TMPDIR/IN
echo =="$avar"==
echo =="$bvar"==
echo =="$cvar"==
rm $TMPDIR/IN
# test behavior of read with various settings of IFS
echo " foo" | { IFS= read line; recho "$line"; }
echo " foo" | { IFS= ; read line; recho "$line"; }
echo " foo" | { unset IFS ; read line; recho "$line"; }
echo " foo" | { IFS=$'\n' ; read line; recho "$line"; }
echo " foo" | { IFS=$' \n' ; read line; recho "$line"; }
echo " foo" | { IFS=$' \t\n' ; read line; recho "$line"; }
echo " foo" | { IFS=$':' ; read line; recho "$line"; }
# test read -d delim behavior
${THIS_SH} ./read1.sub
# test read -t timeout behavior
${THIS_SH} ./read2.sub
# test read -n nchars behavior
${THIS_SH} ./read3.sub
# test read -u fd behavior
${THIS_SH} ./read4.sub
# test behavior when IFS is not the default -- bug through bash-2.05b
${THIS_SH} ./read5.sub
# test behavior of read -t 0
${THIS_SH} ./read6.sub
|
