blob: f48c00fe6d3fbb7517fbe3e1064205741f0f81a9 (
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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
trap 'rm /tmp/newhistory' 0
file=bax
history -c
HISTFILE=history.list
HISTCONTROL=ignoreboth
HISTIGNORE='&:#*:history*:fc*'
# we will end up exercising the history stifling code as a result
HISTSIZE=32
shopt -s cmdhist
set -o history
history -p '!!'
history
HISTFILE=/tmp/newhistory
history -a
history -w
history -s "echo line 2 for history"
history
history -p '!e'
history -p '!!'
set -H
!!
!e
history
echo a b c d e
!?ch?
!-2
^2^8
!2
# we're selecting /bin/sh -c ...; we want `sh'
echo !-1:0:t
# we're selecting /bin/sh -c ...; we want `/bin'
echo !-2:0:h
# we're selecting `echo a b c d e'; we want `e'
echo !?d?:5
echo a b c d e
echo !-1:2-$
echo !-2:2-4
echo !-2:3*
echo !!:*
echo !?a?:2-
echo file.c
echo !!:$:r
echo !-2:$:e
echo !-3:$:r:q
echo $file.c
echo !!:$:r
echo !-2:^:e
echo !-3:$:r:q
echo a b c d e
echo !!:1-$:x
echo !-2:1-$:q
echo foo.c foo.o foo.html foo.h
!!:s/foo/bar/
!-2:gs/foo/bar/
!!:gs/bar/x&/
!-2:g&
# make sure we can use any delimiter in the substitution, not just `/'
!!:gs+bar+whix+
!!:p
# wow
echo !?.o?:%:r:q
!!:0 !?.h?:%:q
!!:-$
!:-$
history
# make sure single quotes inhibit history expansion
echo '!!'
# make sure backslashes can quote the history expansion character
echo \!\!
# but other expansions on the line should still be processed
echo '!!' !!:*
history -c
unset HISTFILE
# make sure that the special bash cases are not history expanded
case p in
[!A-Z]) echo ok 1;;
esac
var1='ok 2'
var2=var1
echo ${!var2}
|
