题目来自Unix Shell范例精解这本书中的第四章和第五章,用的都是datebook这个文件,文件内容如下:
Steve Blenheim:238-923-7366:95 Latham Lane,Easton,PA 83755:11/12/56:20300 Betty Boop:245-836-8357:635 Cutesy Lane,Hollywood,CA 91464:6/23/23:14500 Igor Chevsky:385-375-8395:3567 Populus Place,Caldwell,NJ 23875:6/18/68:23400 norma Corder:397-857-2735:74 Pine Street,Dearborn,MI 23874:3/28/45:245700 Jennifer Cowan:548-834-2348:583 Laurel Ave.,Kingsville,TX 83745:10/1/35:58900 Jon DeLoach:408-253-3122:123 Park St.,San Jose,CA 04086:7/25/53:85100 Karen Evich:284-758-2857:23 Edgecliff Place,Lincoln,NB 92743:7/25/53:85100 Karen Evich:284-758-2867:23 Edgecliff Place,NB 92743:11/3/35:58200 Karen Evich:284-758-2867:23 Edgecliff Place,NB 92743:11/3/35:58200 Fred Fardbarkle:674-843-1385:20 Parak Lane,Duluth,MN 23850:4/12/23:780900 Fred Fardbarkle:674-843-1385:20 Parak Lane,MN 23850:4/12/23:780900 Lori Gortz:327-832-5728:3465 Mirlo Street,Peabody,MA 34756:10/2/65:35200 Paco Gutierrez:835-365-1284:454 Easy Street,Decatur,IL 75732:2/28/53:123500 Ephram Hardy:293-259-5395:235 CarltonLane,Joliet,IL 73858:8/12/20:56700 James Ikeda:834-938-8376:23445 Aster Ave.,Allentown,NJ 83745:12/1/38:45000 Barbara Kertz:385-573-8326:832 Ponce Drive,Gary,IN 83756:12/1/46:268500 Lesley Kirstin:408-456-1234:4 Harvard Square,Boston,MA 02133:4/22/62:52600 William Kopf:846-836-2837:6937 Ware Road,Milton,PA 93756:9/21/46:43500 Sir Lancelot:837-835-8257:474 Camelot Boulevard,Bath,WY 28356:5/13/69:24500 Jesse Neal:408-233-8971:45 Rose Terrace,San Francisco,CA 92303:2/3/36:25000 Zippy Pinhead:834-823-8319:2356 Bizarro Ave.,Farmount,IL 84357:1/1/67:89500 Arthur Putie:923-835-8745:23 Wimp Lane,Kensington,DL 38758:8/31/69:126000 Popeye Sailor:156-454-3322:945 Bluto Street,Anywhere,USA 29358:3/19/35:22350 Jose Santiago:385-898-8357:38 Fife Way,Abilene,TX 39673:1/5/58:95600 Tommy Savage:408-724-0140:1222 Oxbow Court,Sunnyvale,CA 94087:5/19/66:34200 Yukio Takeshida:387-827-1095:13 Uno Lane,Ashville,NC 23556:7/1/29:57000 Vinh Tranh:438-910-7449:8235 Maple Street,Wilmington,VM 29085:9/23/63:68900
第四章:grep家族练习题
grep练习:自己做的答案,不是标准答案,应该有更简洁的方法 1.打印所有包含字符串San的行 grep ‘San‘ datebook 2.打印所有名字以J开头的行 grep ‘^J‘ datebook 3.打印所有以700结尾的行 grep ‘700$‘ datebook 4.打印所有不包含834的行 grep -v ‘834‘ datebook 5.打印所有生日在十二月的行 grep ‘:12/[0-9]*/[0-9]*:‘ datebook 6.打印所有电话号码区号为408的行 grep ‘[a-z]:408-‘ datebook 7.打印所有包含一个大写字母,后跟4个小写字母,一个逗号,一个空格和一个大写字母的行 grep ‘[A-Z][a-z][a-z][a-z][a-z],[A-Z]‘ datebook 8.打印所有最后一个名字以K或k开始的行 grep ‘^[A-Z][a-z]* [Kk]‘ datebook 9.打印所有薪水为6位数字的行,前导是一个行号 grep -n ‘[0-9]\{6,\}$‘ datebook 10.打印包含Lincoln或lincoln(不区分大小写的行) egrep ‘lincoln|Lincoln‘ datebook grep ‘[lL]incoln‘ datebook
第五章:流编辑器sed练习题
sed练习:自己做的答案,不是标准答案,应该有更简洁的方法 1.把Jon的名字改为Jonathan sed -n ‘s/^Jon/Jonathan/p‘ datebook 2.删除头3行 sed ‘1,3d‘ datebook 3.打印第5~10行 sed -n ‘5,10p‘ datebook 4.删除含有Lane的所有行 sed ‘/Lane/p‘ datebook 5.打印所有生日在十一月或十二月的行 sed -n ‘/[A-Z]\{2,3\} [0-9]*:1[12]/p‘ datebook 6.在以Fred开头的各行末尾加上3颗星 sed ‘/^Fred/s/$/***/‘ datebook sed ‘s/^Fred.*[0-9]/&***/‘ datebook 7.将所有包含Jose的行都替换为JOSE HAS RETIRED sed ‘s/Jose/JOSE HAS RETIRED/g‘ datebook 8.把Popeye的生日改为11/14/46,假定您不知道Popeye的生日,设法用正则式查找出来 sed -n ‘/\<Popeye\>/s/[0-9]*\/[0-9]*\/[0-9]*/11\/14\/46/p‘ datebook sed -n ‘\#^Popeye#s#[0-9]*/[0-9]*/[0-9]*#11/14/46#p‘ datebook 9.删除所有空行 sed ‘/^$/d‘ datebook 10.写一个能完成下列任务的sed脚本 a) 在第一行上方插入标题PERSONNEL FILE b) 删除以500结尾的工资项 c) 把名和姓的位置颠倒后,打印文件内容 d) 在文件末尾加上THE END a)解答 1i\PERSONNEL FILE b)解答 /500$/d #这个有问题,没有删除500结尾的行 c)解答 s/\(^[^ ]\+\) \([^ :]\+\)/\2 \1/ d)解答 $a\THE END
sed脚本输出结果
sed脚本内容: #!/usr/bin/sed 1i\PERSONNEL FILE /500$/d #这个有问题,没有删除500结尾的行 s/\(^[^ ]\+\) \([^ :]\+\)/\2 \1/ $a\THE END 执行sed脚本:sed -f sed datebook: PERSONNEL FILE Blenheim Steve:238-923-7366:95 Latham Lane,PA 83755:11/12/56:20300 Boop Betty:245-836-8357:635 Cutesy Lane,CA 91464:6/23/23:14500 Chevsky Igor:385-375-8395:3567 Populus Place,NJ 23875:6/18/68:23400 Corder norma:397-857-2735:74 Pine Street,MI 23874:3/28/45:245700 Cowan Jennifer:548-834-2348:583 Laurel Ave.,TX 83745:10/1/35:58900 DeLoach Jon:408-253-3122:123 Park St.,CA 04086:7/25/53:85100 Evich Karen:284-758-2857:23 Edgecliff Place,NB 92743:7/25/53:85100 Evich Karen:284-758-2867:23 Edgecliff Place,NB 92743:11/3/35:58200 Evich Karen:284-758-2867:23 Edgecliff Place,NB 92743:11/3/35:58200 Fardbarkle Fred:674-843-1385:20 Parak Lane,MN 23850:4/12/23:780900 Fardbarkle Fred:674-843-1385:20 Parak Lane,MN 23850:4/12/23:780900 Gortz Lori:327-832-5728:3465 Mirlo Street,MA 34756:10/2/65:35200 Gutierrez Paco:835-365-1284:454 Easy Street,IL 75732:2/28/53:123500 Hardy Ephram:293-259-5395:235 CarltonLane,IL 73858:8/12/20:56700 Ikeda James:834-938-8376:23445 Aster Ave.,NJ 83745:12/1/38:45000 Kertz Barbara:385-573-8326:832 Ponce Drive,IN 83756:12/1/46:268500 Kirstin Lesley:408-456-1234:4 Harvard Square,MA 02133:4/22/62:52600 Kopf William:846-836-2837:6937 Ware Road,PA 93756:9/21/46:43500 Lancelot Sir:837-835-8257:474 Camelot Boulevard,WY 28356:5/13/69:24500 Neal Jesse:408-233-8971:45 Rose Terrace,CA 92303:2/3/36:25000 Pinhead Zippy:834-823-8319:2356 Bizarro Ave.,IL 84357:1/1/67:89500 Putie Arthur:923-835-8745:23 Wimp Lane,DL 38758:8/31/69:126000 Sailor Popeye:156-454-3322:945 Bluto Street,USA 29358:3/19/35:22350 Santiago Jose:385-898-8357:38 Fife Way,TX 39673:1/5/58:95600 Savage Tommy:408-724-0140:1222 Oxbow Court,CA 94087:5/19/66:34200 Takeshida Yukio:387-827-1095:13 Uno Lane,NC 23556:7/1/29:57000 Tranh Vinh:438-910-7449:8235 Maple Street,VM 29085:9/23/63:68900 THE END
总结: 不知道为什么/500$/d不能删除以500结尾的行,在vim中查看datebook的行尾符号确实是$符号。工作中grep命令用的比较频繁,sed更多在脚本中用,sed脚本还没有写过。
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