Top Forums Shell Programming and Scripting Extract data based on position Post 302473011 by ctsgnb on Thursday 18th of November 2010 05:14:06 PM
@Chubler :

If the matching is similar, then consider the following example
(we can then proceed by analogy adapting the matching to our needs)

Code:
[ctsgnb@shell ~]$ cat mys
toto
bla
124
125
[ctsgnb@shell ~]$ cat myfile
134512345 toto whateva
124523043 hhhh nothing
123512344 anyword bla
125412450 hshs juju
124452344 titi bla
123451345 hhhhhhh tatat
[ctsgnb@shell ~]$ sed 's/.*/^&/' mys
^toto
^bla
^124
^125
[ctsgnb@shell ~]$ sed 's/.*/^&/' mys | grep -f - myfile
124523043 hhhh nothing
125412450 hshs juju
124452344 titi bla
[ctsgnb@shell ~]$

another one :

Code:
[ctsgnb@shell ~]$ cat myfile
134512345 toto whateva
124523043 hhhh nothing
124599943 bla nothing
123512344 anyword bla
125412450 hshs juju
124452344 titi bla
123451345 hhhhhhh toto
125412450 bla juju
125412450 toto juju
[ctsgnb@shell ~]$ cat mys
toto
bla
124
125
[ctsgnb@shell ~]$ sed 's/.*/^.\\{10\\}&/' mys | grep -f - myfile
134512345 toto whateva
124599943 bla nothing
125412450 bla juju
125412450 toto juju
[ctsgnb@shell ~]$

so
Code:
sed 's/.*/^&/' patternfile | grep -f - mydatafile


Last edited by ctsgnb; 11-18-2010 at 07:27 PM..
 
Test Your Knowledge in Computers #363
Difficulty: Medium
uudecode originated in Version 1 AT&T UNIX.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Extract data based on match against one column data from a long list data

My input file: data_5 Ali 422 2.00E-45 102/253 140/253 24 data_3 Abu 202 60.00E-45 12/23 140/23 28 data_1 Ahmad 256 7.00E-45 120/235 140/235 22 data_4 Aman 365 8.00E-45 15/65 140/65 20 data_10 Jones 869 9.00E-45 65/253 140/253 18... (12 Replies)
Discussion started by: patrick87
12 Replies

2. UNIX for Dummies Questions & Answers

To Extract words from File based on Position

Hi Guys, While I was writing one shell script , I just got struck at this point. I need to extract words from a file at some specified position and do some comparison operation and need to replace the extracted word with another word. Eg : I like Orange very much. I need to replace... (19 Replies)
Discussion started by: kuttu123
19 Replies

3. UNIX for Dummies Questions & Answers

Extract Data and arrange it based on timelines

Hi Im trying to extract a specific pattern of data from a log file and store it in a other file, Im executing the below command in various files and storing it in a single file. I data that Im storing needs to be arranged based on a date and timestamp. Please assist, how to achieve this. Thanks... (1 Reply)
Discussion started by: vr3w3c9
1 Replies

4. Shell Programming and Scripting

How to extract log data based on date

Hi Gurus, I've been having some problem in extracting the log data based on the current date and month. As shown in the sample data below, how to extract the log info for Aug 11? Sample data: root pts/ta userpc Wed Aug 11 09:46 - 20:21 (10:35) root pts/ta userpc... (13 Replies)
Discussion started by: superHonda123
13 Replies

5. Shell Programming and Scripting

Extract data based on specific search criteria

I have a huge file (about 2 millions records) contains data separated by “,” (comma). As part of the requirement, I can't change the format. The objective is to remove some of the records with the following condition. If the 23rd field on each line start with 302 , I need to remove that from the... (4 Replies)
Discussion started by: jaygamini
4 Replies

6. Shell Programming and Scripting

Cut multiple data based on character position

How to extract multiple data based on character position. I need to fetch from 7-9 and 22-26 and there is no delimiter for 22-26 since it is part of the column. The file may have more than 1000 character long.I managed to pull any one but not both for example test data 12345 zxc vbnmlk... (1 Reply)
Discussion started by: zooby
1 Replies

7. Shell Programming and Scripting

Help with grouping data based on range position

Input file: data_1 1000 1290 data_4 290 234 data_2 1114 1110 data_5 534 999 data_6 900 1050 . . Desired_output_file_1_0_999: data_4 290 234 data_5 534 999 Desired_output_file_2_1000_1999: data_1 1000 1290 data_2 1114 1110 (1 Reply)
Discussion started by: perl_beginner
1 Replies

8. Shell Programming and Scripting

extract data in a csv file based on a certain field.

I have a csv file that I need to extract some data from depending on another field after reading info from another text file. The text file would say have 592560 in it. The csv file may have some data like so Field 1 Field2 Field3 Field4 Field5 Field6 20009756 1 ... (9 Replies)
Discussion started by: GroveTuckey
9 Replies

9. UNIX for Dummies Questions & Answers

extract regions of file based on start and end position

Hi, I have a file1 of many long sequences, each preceded by a unique header line. file2 is 3-columns list: headers name, start position, end position. I'd like to extract the sequence region of file1 specified in file2. Based on a post elsewhere, I found the code: awk... (2 Replies)
Discussion started by: pathunkathunk
2 Replies

10. Shell Programming and Scripting

Search for a string at a particular position and replace with blank based on position

Hi, I have a file with multiple lines(fixed width dat file). I want to search for '02' in the positions 45-46 and if available, in that lines, I need to replace value in position 359 with blank. As I am new to unix, I am not able to figure out how to do this. Can you please help me to achieve... (9 Replies)
Discussion started by: Pradhikshan
9 Replies
POC-FEC(1)							   User Command 							POC-FEC(1)

NAME
poc-fec - send FEC MP3 streams SYNOPSIS
poc-fec [ -s address ] [ -p port ] [ -t ttl ] [ -q ] [ -k fec_k ] [ -n fec_n ] files... DESCRIPTION
poc-fec is a streaming server sending mp3 data using a custom FEC protocol. The streamed MP3 frames are first decomposed in autonomous data units (ADUs). These ADUs are grouped into ADU groups, which are encoded redundantly using a FEC method by Luigi Rizzo. A group of k ADUs is encoded as n data packets. Any k of these n data packets is sufficient to recover the original k ADUs. It sends the files in the order given on the command-line. Use the filename - to stream from standard input. Normally, the FEC protocol is used to stream to multicast groups. OPTIONS
-s address Specify the address to send to (default 224.0.1.23). -p port Specify the port to send to (default 1500). -t ttl Specify the TTL parameter to be set on outgoing parameters (default 1). -q Don't output any information on standard error. -k fec_k Specify the number of ADUs that will be encoded as an ADU group (default 20). -n fec_n Specify the number of packets that the ADU groups will be encoded to (default 25). This number must be greater than the fec_k param- eter. EXAMPLES
poc-fec -s 224.0.1.24 -p 8989 -t 2 -k 16 -n 32 bla.mp3 Send the file bla.mp3 using the RTP RFC fec protocol to the address 224.0.1.24 on port 8989, and set the TTL to 2. MP3 frames of bla.mp3 are converted to ADUs and grouped in ADU groups of 16 ADUs. These 16 ADUs are encoded into 32 packets and streamed. A client will have to receive at least 16 packets to recover the original ADUs. AUTHORS
Manuel Odendahl <manuel@bl0rg.net>, Florian Wesch <dividuum@bl0rg.net> February 2005 POC-FEC(1)

Featured Tech Videos

All times are GMT -4. The time now is 08:54 AM.
Unix & Linux Forums Content Copyright 1993-2019. All Rights Reserved.
Privacy Policy