Select Record based on First Column


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Select Record based on First Column
# 8  
Old 07-16-2007
Quote:
Originally Posted by reborg
This won't work. It will print all matching records to the file with the same name as $1, the OP wanted the newest record only, which judging by the sample input is the first occurrence only.
No, this is not correct.

Quote:
I need all records with I01 in first field in one file and all records with I02 in one file...
This is what OP had asked for and the solution I had provided would work.

2 records in the file I01 and 2 records in the file I02.

Why do you think it won't work ?
# 9  
Old 07-16-2007
Sorry guys, you're both right. I got confused between two browser windows I has open and though I was looking at this thread
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Select and copy .csv files based on row and column number

Dear UNIX experts, I'm a command line novice working on a Macintosh computer (Bash shell) and have neither found advice that is pertinent to my problem on the internet nor in this forum. I have hundreds of .csv files in a directory. Now I would like to copy the subset of files that contains... (8 Replies)
Discussion started by: rcsapo
8 Replies

2. Shell Programming and Scripting

awk to select lines with maximum value of each record based on column value

Hello, I want to get the maximum value of each record separated by empty line based on the 3rd column of each row within each record? Input: A1 chr5D 634 7 82 707 A2 chr5D 637 6 82 713 A3 chr5D 637 5 82 713 A4 chr5D 626 1 82 704... (4 Replies)
Discussion started by: yifangt
4 Replies

3. UNIX for Dummies Questions & Answers

Match sum of values in each column with the corresponding column value present in trailer record

Hi All, I have a requirement where I need to find sum of values from column D through O present in a CSV file and check whether the sum of each Individual column matches with the value present for that corresponding column present in the trailer record. For example, let's assume for column D... (9 Replies)
Discussion started by: tpk
9 Replies

4. Shell Programming and Scripting

Select record having different value in second column

I want records which have more than one and different value in the second column on the below sample file. Ex, I have the samle file below :- XYZ 1 XYZ 3 abc 1 abc 1 qwe 2 qwe 1 qwe 3 I want to select XYZ and QWE line only. (6 Replies)
Discussion started by: Sanjeev Yadav
6 Replies

5. Shell Programming and Scripting

Select only top "N" records based on column value

Hi Gurus, I know this'll be simple task for all the geeks out here but me being a newbie is finding it hard to crack this shell. Ok coming to the task I've a delimited file as below ================================================== ==================================================== ... (8 Replies)
Discussion started by: asandy1234
8 Replies

6. Shell Programming and Scripting

Awk - how to select the column based on day of month

Problem, How can you pass today's date (eg) 18 into Awk and select the field representing the 18th column? I have an output that I want to interact with based on what day it is information=0:0 192:0 5436:0 22:99 0:0 0:0 1234:0 1359:09 DAY=date'+%d' numbrs=`$information | awk... (2 Replies)
Discussion started by: Gizmo1007
2 Replies

7. Shell Programming and Scripting

Select record with MAX value in MySQL

Hi there, I have trouble selecting record that contain one biggest value for a group of other values. I mean, this is my table: mysql> SELECT * FROM b; +----+------+-------+ | id | user | value | +----+------+-------+ | 1 | 1 | 100 | | 3 | 1 | 150 | | 5 | 1 | 300 | | 6... (20 Replies)
Discussion started by: chebarbudo
20 Replies

8. Shell Programming and Scripting

awk to select rows based on condition on column

I have got a file like this 003ABC00281020091005000100042.810001 ... (8 Replies)
Discussion started by: Maruti
8 Replies

9. UNIX for Dummies Questions & Answers

Select records based on search criteria on first column

Hi All, I need to select only those records having a non zero record in the first column of a comma delimited file. Suppose my input file is having data like: "0","01/08/2005 07:11:15",1,1,"Created",,"01/08/2005" "0","01/08/2005 07:12:40",1,1,"Created",,"01/08/2005"... (2 Replies)
Discussion started by: shashi_kiran_v
2 Replies
Login or Register to Ask a Question