{"id":863,"date":"2016-06-07T11:41:17","date_gmt":"2016-06-07T03:41:17","guid":{"rendered":"https:\/\/yanjingang.com\/blog\/?p=863"},"modified":"2016-09-02T10:36:25","modified_gmt":"2016-09-02T02:36:25","slug":"linux%e6%af%94%e8%be%83%e6%96%87%e6%9c%ac%e6%96%87%e4%bb%b6%e7%9a%84%e4%ba%a4%e9%9b%86%e3%80%81%e5%b7%ae%e9%9b%86%e4%b8%8e%e6%b1%82%e5%b7%ae","status":"publish","type":"post","link":"https:\/\/yanjingang.com\/blog\/?p=863","title":{"rendered":"Linux\u6bd4\u8f83\u6587\u672c\u6587\u4ef6\u7684\u4ea4\u96c6\u3001\u5dee\u96c6\u4e0e\u6c42\u5dee"},"content":{"rendered":"

 <\/p>\n

\u4ecb\u7ecd\u4e24\u4e2a\u5e38\u7528\u547d\u4ee4\uff1a<\/p>\n

1. comm\u547d\u4ee4<\/strong><\/p>\n

comm\u547d\u4ee4\u53ef\u4ee5\u7528\u4e8e\u4e24\u4e2a\u6587\u4ef6\u4e4b\u95f4\u7684\u6bd4\u8f83\uff0c\u5b83\u6709\u4e00\u4e9b\u9009\u9879\u53ef\u4ee5\u7528\u6765\u8c03\u6574\u8f93\u51fa\uff0c\u4ee5\u4fbf\u6267\u884c\u4ea4\u96c6\u3001\u6c42\u5dee\u3001\u4ee5\u53ca\u5dee\u96c6\u64cd\u4f5c\u3002\u6709\u4e09\u5217\u5185\u5bb9\uff1a\u5206\u522b\u8868\u793aA-B\uff0cB-A \u548c A\u4ea4B\u3002<\/p>\n

\u76f8\u5173\u96c6\u5408\u8bba\u89e3\u91ca\uff1a
\n\u4ea4\u96c6\uff1a\u6253\u5370\u51fa\u4e24\u4e2a\u6587\u4ef6\u6240\u5171\u6709\u7684\u884c\u3002
\n\u6c42\u5dee\uff1a\u6253\u5370\u51fa\u6307\u5b9a\u6587\u4ef6\u6240\u5305\u542b\u7684\u4e14\u4e0d\u76f8\u540c\u7684\u884c\u3002
\n\u5dee\u96c6\uff1a\u6253\u5370\u51fa\u5305\u542b\u5728\u4e00\u4e2a\u6587\u4ef6\u4e2d\uff0c\u4f46\u4e0d\u5305\u542b\u5728\u5176\u4ed6\u6307\u5b9a\u6587\u4ef6\u4e2d\u7684\u884c\u3002<\/p>\n

\u5b9e\u4f8b\uff1a<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n
11<\/div>\n
12<\/div>\n
13<\/div>\n
14<\/div>\n
15<\/div>\n
16<\/div>\n
17<\/div>\n
18<\/div>\n
19<\/div>\n
20<\/div>\n
21<\/div>\n
22<\/div>\n
23<\/div>\n
24<\/div>\n
25<\/div>\n
26<\/div>\n
27<\/div>\n
28<\/div>\n
29<\/div>\n
30<\/div>\n<\/div>\n<\/td>\n
\n
\n
# cat aaa.txt <\/span><\/div>\n
aaa<\/span><\/div>\n
bbb<\/span><\/div>\n
ccc<\/span><\/div>\n
ddd<\/span><\/div>\n
eee<\/span><\/div>\n
111<\/span><\/div>\n
222<\/span><\/div>\n
<\/div>\n
# cat bbb.txt <\/span><\/div>\n
bbb<\/span><\/div>\n
ccc<\/span><\/div>\n
aaa<\/span><\/div>\n
hhh<\/span><\/div>\n
ttt<\/span><\/div>\n
jjj<\/span><\/div>\n
<\/div>\n
# comm aaa.txt bbb.txt <\/span><\/div>\n
aaa<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>bbb<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ccc<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>aaa<\/span><\/div>\n
ddd<\/span><\/div>\n
eee<\/span><\/div>\n
111<\/span><\/div>\n
222<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>hhh<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ttt<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>jjj<\/span><\/div>\n
\u7b2c\u4e00\u5217\u00a0\u00a0<\/span>\u7b2c\u4e8c\u5217\u00a0\u00a0<\/span>\u7b2c\u4e09\u5217<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u8f93\u51fa\u7684\u7b2c\u4e00\u5217\u53ea\u5305\u542b\u5728aaa.txt\u4e2d\u51fa\u73b0\u7684\u884c\uff0c\u7b2c\u4e8c\u5217\u5305\u542b\u5728bbb.txt\u4e2d\u51fa\u73b0\u7684\u884c\uff0c\u7b2c\u4e09\u5217\u5305\u542b\u5728aaa.txt\u548cbbb.txt\u4e2d\u76f8\u540c\u7684\u884c\u3002\u5404\u5217\u662f\u4ee5\u5236\u8868\u7b26\uff08\\t\uff09\u4f5c\u4e3a\u5b9a\u754c\u7b26\u3002<\/p>\n

\u683c\u5f0f\u5316\u8f93\u51fa\u9009\u9879\uff1a
\n-1\uff1a\u4ece\u8f93\u51fa\u4e2d\u5220\u9664\u7b2c\u4e00\u5217
\n-2\uff1a\u4ece\u8f93\u51fa\u4e2d\u5220\u9664\u7b2c\u4e8c\u5217
\n-3\uff1a\u4ece\u8f93\u51fa\u4e2d\u5220\u9664\u7b2c\u4e09\u5217<\/p>\n

1.1 \u4ea4\u96c6<\/p>\n

\u6253\u5370\u4e24\u4e2a\u6587\u4ef6\u7684\u4ea4\u96c6\uff0c\u9700\u8981\u5220\u9664\u7b2c\u4e00\u5217\u548c\u7b2c\u4e8c\u5217\uff1a<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n<\/div>\n<\/td>\n
\n
\n
# comm aaa.txt bbb.txt -1 -2<\/span><\/div>\n
bbb<\/span><\/div>\n
ccc<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

1.2 \u6c42\u5dee<\/p>\n

\u6253\u5370\u51fa\u4e24\u4e2a\u6587\u4ef6\u4e2d\u4e0d\u76f8\u540c\u7684\u884c\uff0c\u9700\u8981\u5220\u9664\u7b2c\u4e09\u5217\uff1a<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n<\/div>\n<\/td>\n
\n
\n
# comm aaa.txt bbb.txt -3 | sed ‘s\/^\\t\/\/’<\/span><\/div>\n
aaa<\/span><\/div>\n
aaa<\/span><\/div>\n
ddd<\/span><\/div>\n
eee<\/span><\/div>\n
111<\/span><\/div>\n
222<\/span><\/div>\n
hhh<\/span><\/div>\n
ttt<\/span><\/div>\n
jjj<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

sed ‘s\/^\\t\/\/’ \u662f\u5c06\u5236\u8868\u7b26\uff08\\t\uff09\u5220\u9664\uff0c\u4ee5\u4fbf\u628a\u4e24\u5217\u5408\u5e76\u6210\u4e00\u5217\u3002<\/p>\n

1.3 \u5dee\u96c6<\/p>\n

\u901a\u8fc7\u5220\u9664\u4e0d\u9700\u8981\u7684\u5217\uff0c\u53ef\u4ee5\u5f97\u5230aaa.txt\u548cbbb.txt\u7684\u5dee\u96c6\uff1a<\/p>\n

1.3.1\u00a0aaa.txt\u7684\u5dee\u96c6<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n<\/div>\n<\/td>\n
\n
\n
# comm aaa.txt bbb.txt -2 -3<\/span><\/div>\n
aaa<\/span><\/div>\n
ddd<\/span><\/div>\n
eee<\/span><\/div>\n
111<\/span><\/div>\n
222<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

1.3.2 bbb.txt\u7684\u5dee\u96c6<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/div>\n<\/td>\n
\n
\n
# comm aaa.txt bbb.txt -1 -3<\/span><\/div>\n
aaa<\/span><\/div>\n
hhh<\/span><\/div>\n
ttt<\/span><\/div>\n
jjj<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u6ce8\u610f1\uff1a<\/strong>
\n1. comm\u547d\u4ee4\u8981\u6c42\u8f93\u5165\u6587\u4ef6\u7684\u5185\u5bb9\u5fc5\u987b\u662f\u6392\u5e8f\u4e14\u552f\u4e00\u7684
\n2. comm -12 \u8868\u793a\u53d6\u6d88\u7b2c\u4e00\u5217\u548c\u7b2c\u4e8c\u5217\u7684\u8f93\u51fa\uff0c\u5373\u53ea\u8f93\u51fa\u7b2c\u4e09\u5217\u3002<\/p>\n

2. grep\u547d\u4ee4<\/strong><\/p>\n

grep\u547d\u4ee4\u662f\u5e38\u7528\u6765\u641c\u7d22\u6587\u672c\u5185\u5bb9\u7684\uff0c\u6839\u636e\u8f93\u5165\u7684pattern\uff0c\u8f93\u51fa\u547d\u4e2d\u7684\u5185\u5bb9\u3002\u53ef\u4ee5\u5229\u7528\u5b83\u7684\u6587\u4ef6\u8f93\u5165pattern\u7279\u6027\uff0c\u6765\u6c42\u4e24\u4e2a\u6587\u4ef6\u7684\u4ea4\u96c6\u3002<\/p>\n

2.1 \u4ea4\u96c6<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n<\/div>\n<\/td>\n
\n
\n
# grep -F -f aaa.txt\u00a0\u00a0bbb.txt <\/span><\/div>\n
bbb<\/span><\/div>\n
ccc<\/span><\/div>\n
aaa<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2 \u5dee\u96c6<\/p>\n

2.2.1 aaa.txt – bbb.txt\u7684\u5dee\u96c6<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/div>\n<\/td>\n
\n
\n
# grep -F -v\u00a0\u00a0-f\u00a0\u00a0 bbb.txt aaa.txt\u00a0\u00a0 <\/span><\/div>\n
ddd<\/span><\/div>\n
eee<\/span><\/div>\n
111<\/span><\/div>\n
222<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2.2 bbb.txt \u00a0– aaa.txt\u7684\u5dee\u96c6<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n<\/div>\n<\/td>\n
\n
\n
# grep -F -v\u00a0\u00a0-f\u00a0\u00a0 aaa.txt bbb.txt <\/span><\/div>\n
hhh<\/span><\/div>\n
ttt<\/span><\/div>\n
jjj<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u6ce8\u610f2\uff1a<\/strong>
\n1. grep\u6c42\u4ea4\u96c6\u4e0d\u8981\u6c42\u8f93\u5165\u6587\u4ef6\u662f\u6392\u5e8f\u7684\uff0c\u4f46\u6700\u597d\u662f\u552f\u4e00\u7684
\n2. \u5dee\u96c6\u65f6\u6ce8\u610f\u8f93\u5165\u6587\u4ef6\u7684\u987a\u5e8f<\/p>\n

\u5927\u5bb6\u53ef\u80fd\u6ce8\u610f\u5230\u4e86\uff0ccomm\u4e0egrep\u6c42\u5dee\u96c6\u7684\u7ed3\u679c\u5374\u4e0d\u540c\uff0c\u5f53\u6211\u4eec\u5728\u4f7f\u7528comm\u547d\u4ee4\u524d\uff0c\u5148\u5bf9aaa.txt\u548cbbb.txt\u8fdb\u884c\u6392\u5e8f\u64cd\u4f5c\u540e\uff0c\u518d\u6bd4\u8f83\u3002\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n

\n
<\/div>\n
\n\n\n\n
\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n
11<\/div>\n
12<\/div>\n
13<\/div>\n
14<\/div>\n<\/div>\n<\/td>\n
\n
\n
# sort aaa.txt > aaa1.txt<\/span><\/div>\n
# sort bbb.txt > bbb1.txt<\/span><\/div>\n
# comm aaa1.txt bbb1.txt <\/span><\/div>\n
111<\/span><\/div>\n
222<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>aaa<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>bbb<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ccc<\/span><\/div>\n
ddd<\/span><\/div>\n
eee<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>hhh<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>jjj<\/span><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ttt<\/span><\/div>\n
A<\/span>–<\/span>B<\/span>\u00a0\u00a0\u00a0\u00a0<\/span>B<\/span>–<\/span>A<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u8fd9\u7ed3\u679c\u624d\u4e0egrep\u7684\u7ed3\u679c\u76f8\u540c\u3002<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u4e24\u4e0a\u547d\u4ee4\u5bf9\u4e2d\u6587\u7684\u5904\u7406\u6709\u4e9b\u95ee\u9898\u3002<\/p>\n

\u6458\u81ea\uff1ahttp:\/\/www.ttlsa.com\/linux\/linux-file-comparison-operations-text-file-of-the-intersection-difference-sets-and-difference\/<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

  \u4ecb\u7ecd\u4e24\u4e2a\u5e38\u7528\u547d\u4ee4\uff1a 1. comm\u547d\u4ee4 comm\u547d\u4ee4\u53ef\u4ee5\u7528\u4e8e\u4e24\u4e2a\u6587\u4ef6\u4e4b\u95f4\u7684\u6bd4\u8f83\uff0c\u5b83\u6709\u4e00\u4e9b\u9009\u9879\u53ef\u4ee5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[31],"tags":[166,32,398,399],"_links":{"self":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/863"}],"collection":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=863"}],"version-history":[{"count":0,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/863\/revisions"}],"wp:attachment":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}