练手: grep

grep命令练习
文件:datafile
[php]
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 23875:6/18/68:23400Norma 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 92086:7/25/53:85100
Karen Evich:284-758-2867:23 Edgecliff Place, Lincoln, NB 92743:11/3/35:58200
Karen Evich:284-758-2867:23 Edgecliff Place, Lincoln, NB 92743:11/3/35:58200
Fred Fardbarkle:674-843-1385:20 Parak Lane, DeLuth, MN 23850:4/12/23:780900
Fred Fardbarkle:674-843-1385:20 Parak Lane, DeLuth, 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 29358:3/19/35:22350Jose 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
#####################################
[/php]

• 显示所有包含San的行
  
• 显示所有以J开始的人名所在的行
  
• 显示所有以700结尾的行
  
• 显示所有不包括834的行
  
• 显示所有生日在December的行
  
• 显示所有电话号码的区号为498的行
  
• 显示所有这样的行:它包含一个大写字母,后跟四个小写字母,一个冒号,一个空格,和一个大写字母
  
• 显示姓以K或k开头的行
  
• 显示工资为六位数的行,并在前面加行号
  
• 显示包括Lincoln或lincoln的行,并且grep对大小写不敏感.
  [/list=1]　　　　　　

[CODE]
1. grep San datafile
2. grep ^J datafile
3. grep 700$ datafile
4. 不会。
5. awk -F : '{print $4}' datafile | grep [0-9]*/12
6. awk -F : '{print $2}' datafile | grep ^498
7. grep "[A-Z][a-z]\{4\}: [A-Z]" datafile
8. grep "^[a-zA-Z]* [Kk]" datafile
9. awk -F : ' {print NR,$5} ' datafile | grep "[0-9]+ [0-9]\{6\}"
10. grep [Ll]incoln datafile
[/CODE]　　　　　　

1,  sed -n '/San/p' datafile
gawk '/San/' datafile
2,  gawk '/^J/' datafile
sed -n '/^J/p' datafile
3, sed -n '/700$/p' datafile
gawk '/700$/' datafile
4, grep -v 834 datafile
5, gawk -F: '$4~/^12/' datafile


8, grep "^[kK]" datafile
9, grep "[0-9]\{6\}" datafile
10, grep "[lL]incoln" datafile　　　　　　

嘻嘻，有两下子
建议大家用sed, awk, perl, grep, bash分别实现一遍