{"id":19267,"date":"2016-08-14T06:23:35","date_gmt":"2016-08-13T22:23:35","guid":{"rendered":"https:\/\/2blog.ilc.edu.tw\/25793\/2016\/08\/14\/sed-%e5%82%99%e5%bf%98\/"},"modified":"2021-03-18T17:24:47","modified_gmt":"2021-03-18T09:24:47","slug":"sed-%e5%82%99%e5%bf%98","status":"publish","type":"post","link":"https:\/\/2blog.ilc.edu.tw\/25793\/2016\/08\/14\/sed-%e5%82%99%e5%bf%98\/","title":{"rendered":"sed \u5099\u5fd8"},"content":{"rendered":"

\u53c3\u8003\u7db2\u9801\uff1a
[\u8f49\u8cbc] SED\u55ae\u884c\u8173\u672c\u5feb\u901f\u53c3\u8003 @ \u80d6\u864e\u7684\u7955\u5bc6\u57fa\u5730 :: \u75de\u5ba2\u90a6 PIXNET ::<\/a>
sed \u5de5\u5177<\/a>
\u963f\u65fa\u7684 Linux \u958b\u7ac5\u624b\u518a<\/a>
sed, a stream editor Examples
<\/a><\/span><\/span>Sed – An Introduction and Tutorial<\/a> <\/p>\n

1. \u522a\u9664\u7a7a\u767d\u884c
# sed -i ‘\/^$\/d’ testfile<\/span>
# sed -i ‘\/.\/!d’ testfile<\/span> <\/p>\n

2. \u522a\u9664\u7b2c\u4e00\u884c\u7a7a\u884c\u5f8c\u7684\u6240\u6709\u5167\u5bb9
# sed -i ‘\/^$\/q’ testfile<\/span> <\/p>\n

3. \u522a\u9664\u7b2c\u4e00\u884c\u7a7a\u884c\u4e4b\u524d\u7684\u6240\u6709\u5167\u5bb9
# sed -i ‘1,\/^$\/d’ testfile<\/span>[@more@]4. \u522a\u9664\u542b pattern \u7684\u884c
# sed -i ‘\/pattern\/d’ testfile<\/span> <\/p>\n

# cat \/tmp\/testfile<\/span>
1<\/span>
2<\/span>
3<\/span>
4<\/span>
5<\/span>
# sed -i ‘\/2\/’,’\/4\/d’ \/tmp\/testfile<\/span>
# cat \/tmp\/testfile<\/span>
1<\/span>
5<\/span> <\/p>\n

5. \u522a\u9664\u6587\u4ef6\u4e2d\u958b\u982d\u768410\u884c
# sed -i ‘1,10d’ testfile<\/span> <\/p>\n

6. \u522a\u9664\u6587\u4ef6\u4e2d\u7684\u6700\u5f8c\u4e00\u884c
# sed -i ‘$d’ testfile<\/span> <\/p>\n

7. \u986f\u793a 8~12 \u884c
# sed -n ‘8,12p’ testfile<\/span> <\/p>\n

8. \u53ea\u986f\u793a\u7b26\u5408 pattern \u7684\u884c
# sed -n ‘\/pattern\/p’ testfile<\/span>
# sed ‘\/pattern\/!d’ testfile<\/span>
# grep pattern testfile<\/span> <\/p>\n

9. \u4e0d\u986f\u793a\u7b26\u5408 pattern \u7684\u884c
# sed -n ‘\/pattern\/!p’ testfile<\/span>
# sed ‘\/pattern\/d’ testfile<\/span>
# grep -v pattern testfile<\/span> <\/p>\n

10. \u4e00\u6b21\u5168\u90e8\u66f4\u63db\u591a\u500b\u7b26\u5408\u7684 pattern
# sed -i ‘s\/mysql\/red\/g;s\/php\/black\/g’ testfile<\/span> <\/p>\n

11. \u5728\u6bcf\u4e00\u884c\u524d\u9762\u63d2\u5165 5 \u500b\u7a7a\u767d
# sed -i ‘s\/^\/ \/’ testfile<\/span> <\/p>\n

12. \u66f4\u63db\u6307\u5b9a\u884c(n)\u7b26\u5408\u7684\u5b57\u4e32
# sed -i ‘ns\/php\/red\/’ testfile<\/span> <\/p>\n

13. \u5728\u6307\u5b9a\u884c\u4e4b\u524d\u63d2\u5165
# sed -i ‘2i 1234567890’ testfile<\/span> <\/p>\n

14. \u5728\u6307\u5b9a\u884c\u4e4b\u5f8c\u63d2\u5165
# sed -i ‘2a 1234567890’ testfile<\/span> <\/p>\n

15. \u5728\u6700\u5f8c\u4e00\u884c\u63d2\u5165
# sed -i ‘$a 1234567890’ testfile<\/span> <\/p>\n

16. \u5b57\u4e32\u53d6\u4ee3
# sed -i ‘s\/^(anonymous_enable=).*$\/1”NO\/’ \/etc\/vsftpd\/vsftpd.conf<\/span>
# sed -i ‘s\/^(SELINUX=).*$\/1”disabled\/’ \/etc\/selinux\/config<\/span><\/p>\n

17. \u5b57\u4e32\u53d6\u4ee3
# sed -i ‘\/foo\/ s\/\/bar\/g’ testfile<\/span> <\/p>\n

18. \u5b57\u4e32\u53d6\u4ee3 \u6307\u5b9a\u884c\u7bc4\u570d
# sed -i ‘34,38 s\/ACCEPT\/DROP\/’ \/etc\/ufw\/before.rules
<\/span><\/p>\n

19. \u53d6\u51fa IP
# ifconfig eth0<\/span>
inet addr:192.168.1.12 Bcast:192.168.1.255 Mask:255.255.255.0<\/span>
# ifconfig eth0 | grep ‘inet ‘ | sed ‘s\/^.*inet addr:\/\/g’ | sed ‘s\/ *Bcast.*$\/\/g’<\/span>
192.168.1.12<\/span> <\/p>\n

20. \u591a\u500b\u6307\u4ee4
# sed -i ‘s\/123\/234\/; s\/\u56db\u5fe0\/\u56db\u7fa9\/’ list<\/span> <\/p>\n

21. \u5c07\u7de8\u8f2f\u547d\u4ee4\u653e\u5728\u6a94\u6848\u4e4b\u4e2d
# cat sedscr<\/span>
s\/123\/234\/<\/span>
s\/\u56db\u5fe0\/\u56db\u7fa9\/<\/span>
# sed -i -f sedscr list<\/span><\/p>\n

22. \u522a\u9664\u627e\u5230 %post \u5f8c\u7684\u6240\u6709\u884c\u6578
# sed -i ‘\/%post\/ ,$d’ \/tmp\/anaconda-ks.cfg<\/span><\/p>\n

23. \u627e\u5230\u5b57\u4e32\u7684\u5f8c\u9762\u63d2\u5165\u4e00\u884c
\u5728 #PIDFILE<\/span> \u5f8c\u9762\u63d2\u5165\u4e00\u884c
# sed -i ‘\/#PIDFILE\/ a PIDFILE=\/var\/chroot\/bind9\/var\/run\/named\/named.pid’ \/etc\/init.d\/bind9<\/span><\/p>\n

24. \u591a\u91cd\u53d6\u4ee3
# sed -i -e ‘s\/123\/234\/’ -e ‘s\/\u56db\u5fe0\/\u56db\u7fa9\/’ list<\/span><\/p>\n

25. \u522a\u9664\u6700\u5f8c\u5e7e\u500b\u5b57\u5143
# sed -i ‘s\/…$\/\/’ testfile<\/span><\/p>\n

26. \u5728\u6bcf\u4e00\u884c\u5f8c\u9762\u63d2\u5165\u4e00\u884c\u7a7a\u767d\u884c
# sed -i G testfile<\/span><\/p>\n

27. \u5728\u6700\u5f8c\u4e00\u500b\u6b04\u4f4d\u63d2\u5165\u5b57\u4e32
# sed -i ‘s\/$\/@smail.ilc.edu.tw\/’ class3<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u53c3\u8003\u7db2\u9801\uff1a [\u8f49\u8cbc] SED\u55ae\u884c\u8173\u672c\u5feb\u901f\u53c3\u8003 @ \u80d6\u864e\u7684\u7955\u5bc6\u57fa\u5730 :: \u75de\u5ba2\u90a6 PIXNET :: sed \u5de5 … <\/p>\n

\u95b1\u8b80\u5168\u6587\u3008sed \u5099\u5fd8\u3009<\/span><\/a><\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[167,117,179,119],"tags":[],"class_list":["post-19267","post","type-post","status-publish","format-standard","hentry","category-c-84386","category-c-78462","category-c-87877","category-c-78464"],"meta_key":{"_pingme":["1"],"_encloseme":["1"],"lt_post_id":["650439"]},"_links":{"self":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19267"}],"collection":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/comments?post=19267"}],"version-history":[{"count":1,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19267\/revisions"}],"predecessor-version":[{"id":20817,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19267\/revisions\/20817"}],"wp:attachment":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/media?parent=19267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/categories?post=19267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/tags?post=19267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}