Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Deleting rows where the value in a specific column match Post 302772065 by evelibertine on Friday 22nd of February 2013 04:08:45 PM
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

 

10 More Discussions You Might Find Interesting

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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
IRSEND(1)							   User Commands							 IRSEND(1)

NAME
irsend - basic LIRC program to send infra-red commands SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...] DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such as TV boxes, HiFi sets, etc. DIRECTIVE can be: SEND_ONCE - send CODE [CODE ...] once SEND_START - start repeating CODE SEND_STOP - stop repeating CODE LIST - list configured remote items SET_TRANSMITTERS - set transmitters NUM [NUM ...] SIMULATE - simulate IR event REMOTE is the name of a remote, as described in the lircd configuration file. CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file. NUM is the transmitter number of the hardware device. For the LIST DIRECTIVE, REMOTE and/or CODE can be empty: LIST "" "" - list all configured remote names LIST REMOTE "" - list all codes of REMOTE LIST REMOTE CODE - list only CODE of REMOTE The SIMULATE command only works if it has been explicitly enabled in lircd. -h --help display usage summary -v --version display version -d --device use given lircd socket [/var/run/lirc/lircd] -a --address=host[:port] connect to lircd at this address -# --count=n send command n times EXAMPLES
irsend LIST DenonTuner "" irsend SEND_ONCE DenonTuner PROG-SCAN irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3 irsend SEND_STOP OnkyoAmpli VOL-DOWN irsend SET_TRANSMITTERS 1 irsend SET_TRANSMITTERS 1 3 4 irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S" FILES
/etc/lirc/lircd.conf Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave- form details. DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics: "irsend: could not connect to socket" "irsend: Connection refused" (or "Permission denied"). SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory. lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org. irsend 0.9.0-pre1 October 2010 IRSEND(1)
All times are GMT -4. The time now is 03:03 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy