论坛里的一个兄弟要同时折腾两个变量,不知道如何折腾. 后来了解到可以用数组
都忘记shell还有数组了.
写了一个测试程序. 记录一下. 以后也有个印象.
|
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
|
#!/bin/bash
declare
-a tmp
for
i
in
$(
find
/bin
-
type
f)
do
let
c++
tmp[c]=
"$i"
done
len=
"${#tmp[@]}"
#array length
c=len
for
i
in
$(
find
/usr/bin
-
type
f)
do
let
c++
tmp[c]=
"$i"
done
i=0
while
[ $i -
le
$len ]
do
let
i+=1
echo
"BIN:${tmp[i]}; USR:${tmp[i+len]}"
done
$
bash
a.sh
BIN:
/bin/cp
USR:
/usr/bin/semodule_link
BIN:
/bin/redhat_lsb_init
USR:
/usr/bin/gst-launch
BIN:
/bin/readlink
USR:
/usr/bin/opgprof
BIN:
/bin/unicode_start
USR:
/usr/bin/eu-strings
BIN:
/bin/ps
USR:
/usr/bin/pango-querymodules-64
BIN:
/bin/lsblk
USR:
/usr/bin/w
BIN:
/bin/sleep
USR:
/usr/bin/smbta-util
BIN:
/bin/setserial
USR:
/usr/bin/aserver
BIN:
/bin/unicode_stop
USR:
/usr/bin/patch
BIN:
/bin/cgget
USR:
/usr/bin/pdftops
BIN:
/bin/nano
USR:
/usr/bin/lzmainfo
BIN:
/bin/cgdelete
USR:
/usr/bin/gstack
BIN:
/bin/ln
USR:
/usr/bin/rngtest
BIN:
/bin/mkdir
USR:
/usr/bin/nfs4_setfacl
BIN:
/bin/mknod
USR:
/usr/bin/vimtutor
BIN:
/bin/dumpkeys
USR:
/usr/bin/op-check-perfevents
BIN:
/bin/ipcalc
USR:
/usr/bin/sedispol
BIN:
/bin/gzip
USR:
/usr/bin/reporter-mailx
BIN:
/bin/true
USR:
/usr/bin/tiff2pdf
BIN:
/bin/mv
USR:
/usr/bin/urlgrabber
BIN:
/bin/dbus-uuidgen
USR:
/usr/bin/groffer
BIN:
/bin/cgsnapshot
USR:
/usr/bin/smbcquotas
BIN:
/bin/env
USR:
/usr/bin/nfs4_getfacl
BIN:
/bin/arch
USR:
/usr/bin/repomanage
BIN:
/bin/echo
USR:
/usr/bin/eu-unstrip
BIN:
/bin/touch
USR:
/usr/bin/
.
ssh
.hmac
|
脚本取第一次的结果长度为后面while的最大长度.
数组还可以直接
|
1
|
for
i
in
${array[@]};
do
... ;
done
|
但要同时取两个变量就不好折腾了.
另外数组还有分片, 替换等高级功能, 这个目前没用到. 不写了.
还是折腾python为主...
附, 那边论坛版主的脚本. 使用三目运算等等, 更加简洁
|
1
2
3
4
5
6
7
8
9
10
11
|
#!/bin/bash
bin=( $(
find
/bin
-
type
f) )
ubin=( $(
find
/usr/bin
-
type
f) )
(( len = ${
#bin[@]} < ${#ubin[@]} ? ${#bin[@]} : ${#ubin[@]} ))
for
(( i = 0; i < len; i++ ));
do
echo
"/bin: ${bin[$i]}"
echo
"/usr/bin: ${ubin[$i]}"
done
|
本文转自 nonono11 51CTO博客，原文链接：http://blog.51cto.com/abian/1678202，如需转载请自行联系原作者
