Deleting rows where the value in a specific column match


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Deleting rows where the value in a specific column match
Prev   Next
# 1  
Old 02-22-2013
Deleting rows where the value in a specific column match

Hi,

I have a tab delimited text file where I want to delete all rows that have the same string for column 1. How do I go about doing that? Thanks!

Example Input:
Code:
aa 1
aa 2
aa 3
bb 4
bc 5
bb 6
cd 8

Output:
Code:
bc 5
cd 8

 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Overwrite specific column in xml file with the specific column from adjacent line

I have an xml file dumped from rrd file, that I want to "patch" so the xml file doesn't contain any blank hole in the resulting graph of the rrd file. Here is the file. <!-- 2015-10-12 14:00:00 WIB / 1444633200 --> <row><v> 4.0419731265e+07 </v><v> 4.5045912770e+06... (2 Replies)
Discussion started by: rk4k
2 Replies

2. Shell Programming and Scripting

Converting Single Column into Multiple rows, but with strings to specific tab column

Dear fellows, I need your help. I'm trying to write a script to convert a single column into multiple rows. But it need to recognize the beginning of the string and set it to its specific Column number. Each Line (loop) begins with digit (RANGE). At this moment it's kind of working, but it... (6 Replies)
Discussion started by: AK47
6 Replies

3. UNIX for Dummies Questions & Answers

[Solved] Deleting all rows where the first column equals the second column

Hi, I have a tab delimited text file where the first two columns equal numbers. I want to delete all rows where the value in the first column equals the second column. How do I go about doing that? Thanks! Input: 1 1 ABC DEF 2 2 IJK LMN 1 2 ZYX OPW Output: 1 2 ZYX OPW (2 Replies)
Discussion started by: evelibertine
2 Replies

4. UNIX for Dummies Questions & Answers

Delete rows with unique value for specific column

Hi all I have a file which looks like this 1234|1|Jon|some text|some text 1234|2|Jon|some text|some text 3453|5|Jon|some text|some text 6533|2|Kate|some text|some text 4567|3|Chris|some text|some text 4567|4|Maggie|some text|some text 8764|6|Maggie|some text|some text My third column is my... (9 Replies)
Discussion started by: A-V
9 Replies

5. UNIX for Dummies Questions & Answers

Deleting specific rows from a text file

How do I go about deleting specific rows from a text file (given row number)? (5 Replies)
Discussion started by: evelibertine
5 Replies

6. UNIX for Dummies Questions & Answers

Help with deleting specific rows from a text file

I know this is a complicated question but I will try to illustrate it with some data. I have a data file that looks like the following: 1341 NA06985 0 0 2 46.6432798439 1341 NA06991 NA06993 NA06985 2 48.8478948517 1341 NA06993 0 0 1 45.8022601455 1340 NA06994 0 0 1 48.780669145 1340... (1 Reply)
Discussion started by: evelibertine
1 Replies

7. Shell Programming and Scripting

Counting rows line by line from a specific column using Awk

Dear UNIX community, I would like to to count characters from a specific row and have them displayed line-by-line. I have a file called testAwk2.csv which contain the following data: rabbit penguin goat giraffe emu ostrich I would like to count in the middle row individually... (4 Replies)
Discussion started by: vnayak
4 Replies

8. Shell Programming and Scripting

Deleting of Specific Rows.

Fruit : Price : Quantity apple : 20 : 40 chiku : 40 :30 Hey guys, i have written a code using sed to delete a specific char which is being typed in. But the problem i am having is , how can i expand my coding to actually allow it do delete the whole row. For example,... (21 Replies)
Discussion started by: gregarion
21 Replies

9. Shell Programming and Scripting

Deleting specific rows in large files having rows greater than 100000

Hi Guys, I need help in modifying a large text file containing more than 1-2 lakh rows of data using unix commands. I am quite new to the unix language the text file contains data in a pipe delimited format sdfsdfs sdfsdfsd START_ROW sdfsd|sdfsdfsd|sdfsdfasdf|sdfsadf|sdfasdf... (9 Replies)
Discussion started by: manish2009
9 Replies

10. Shell Programming and Scripting

Print rows, having pattern in specific column...

Hello all, :) I have a pattern file some what like this, cd003 cd005 cd007 cd008 and input file like this, abc cd001 cd002 zca bca cd002 cd003 cza cba cd003 cd004 zca bac cd004 cd005 zac cba cd005 cd006 acz acb cd006 cd007 caz cab cd007 ... (25 Replies)
Discussion started by: admax
25 Replies
Login or Register to Ask a Question
DB2_COLUMN_PRIVILEGES(3)						 1						  DB2_COLUMN_PRIVILEGES(3)

db2_column_privileges - Returns a result set listing the columns and associated privileges for a table

SYNOPSIS
resource db2_column_privileges (resource $connection, [string $qualifier], [string $schema], [string $table-name], [string $column- name]) DESCRIPTION
Returns a result set listing the columns and associated privileges for a table. PARAMETERS
o $connection - A valid connection to an IBM DB2, Cloudscape, or Apache Derby database. o $qualifier - A qualifier for DB2 databases running on OS/390 or z/OS servers. For other databases, pass NULL or an empty string. o $schema - The schema which contains the tables. To match all schemas, pass NULL or an empty string. o $table-name - The name of the table or view. To match all tables in the database, pass NULL or an empty string. o $column-name - The name of the column. To match all columns in the table, pass NULL or an empty string. RETURN VALUES
Returns a statement resource with a result set containing rows describing the column privileges for columns matching the specified parame- ters. The rows are composed of the following columns: +-------------+---------------------------------------------------+ |Column name | | | | | | | Description | | | | +-------------+---------------------------------------------------+ | TABLE_CAT | | | | | | | Name of the catalog. The value is NULL if this | | | table does not have catalogs. | | | | |TABLE_SCHEM | | | | | | | Name of the schema. | | | | | TABLE_NAME | | | | | | | Name of the table or view. | | | | |COLUMN_NAME | | | | | | | Name of the column. | | | | | GRANTOR | | | | | | | Authorization ID of the user who granted the | | | privilege. | | | | | GRANTEE | | | | | | | Authorization ID of the user to whom the privi- | | | lege was granted. | | | | | PRIVILEGE | | | | | | | The privilege for the column. | | | | |IS_GRANTABLE | | | | | | | Whether the GRANTEE is permitted to grant this | | | privilege to other users. | | | | +-------------+---------------------------------------------------+ SEE ALSO
db2_columns(3), db2_foreign_keys(3), db2_primary_keys(3), db2_procedure_columns(3), db2_procedures(3), db2_special_columns(3), db2_statis- tics(3), db2_table_privileges(3), db2_tables(3). PHP Documentation Group DB2_COLUMN_PRIVILEGES(3)