sed奇怪的结果

zxc159

UID: 42686
帖子: 149
积分: 342
在线时间: 1 天 6 小时

1^# zxc159 发表于 2008-06-10 17:06

sed奇怪的结果

文件wk
northwest NW Joel Craig 3.0 .98 3 4
western WE Sharon Kelly 5.3 .97 5 23
southwest SW Chris Foster 2.7 .8 2 18
southern SO May Chin 5.1 .95 4 15
southeast SE Derek Johnson 4.0 .7 4 17
eastern EA Susan Beal 4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north NO Val Shultz 4.5 .89 5 9
central CT Sheri Watson 5.7 .94 5 13

用命令sed 's/ $[A-Z][a-z]*$ $[A-Z][a-z]* $/ \2 \1/g' wk

怎么会是northwest Joel  NWCraig 3.0 .98 3 4
western Sharon  WEKelly 5.3 .97 5 23
southwest Chris  SWFoster 2.7 .8 2 18
southern May  SOChin 5.1 .95 4 15
southeast Derek  SEJohnson 4.0 .7 4 17
eastern Susan  EABeal 4.4 .84 5 20
northeast TJ  NENichols 5.1 .94 3 13
north Val  NOShultz 4.5 .89 5 9
central Sheri  CTWatson 5.7 .94 5 13呢？
我希望是名字和姓倒过来。　　　　　　

dearvoid

UID: 41384
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在线时间: 10 分钟

2^# dearvoid 发表于 2008-06-10 18:19

FIY

引用:

-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; cat wk
northwest NW Joel Craig 3.0 .98 3 4
western WE Sharon Kelly  5.3 .97 5 23
southwest SW Chris Foster  2.7 .8  2 18
southern  SO May Chin    5.1 .95 4 15
southeast SE Derek Johnson 4.0 .7  4 17
eastern EA Susan Beal 4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north    NO Val Shultz 4.5 .89 5 9
central CT Sheri Watson  5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; sed 's/ $[a-zA-Z]\+$ $[a-zA-Z]\+$$ \+[0-9]$/ \2 \1\3/' wk
northwest NW Craig Joel 3.0 .98 3 4
western WE Kelly Sharon  5.3 .97 5 23
southwest SW Foster Chris  2.7 .8  2 18
southern  SO Chin May    5.1 .95 4 15
southeast SE Johnson Derek 4.0 .7  4 17
eastern EA Beal Susan 4.4 .84 5 20
northeast NE Nichols TJ 5.1 .94 3 13
north    NO Shultz Val 4.5 .89 5 9
central CT Watson Sheri  5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; bye

zxc159

UID: 42686
帖子: 149
积分: 342
在线时间: 1 天 6 小时

3^# zxc159 发表于 2008-06-10 19:54

好人啊！
多谢了。　　　　　　