|
|
Sponsored Content
Top Forums
UNIX for Dummies Questions & Answers
Awk: Print out overlapping chunks of file - rows 0-20,10-30,20-40 etc.
Post 302631265 by matfald on Friday 27th of April 2012 06:27:52 AM
04-27-2012
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi everybody:
Could anybody tell me how I can print from a file a selected rows with awk. In my case I only want print in another file all the rows from NR=8 to NR=2459 and the increment each 8 times.
I tried to this:
awk '{for (i=8; i=2459; i+=8); NR==i}' file1 > file2
But doesn't... (6 Replies)
Discussion started by: tonet
6 Replies
2. Shell Programming and Scripting
Hi all
i have a file like
2006,1,2
2007,2,3
2008,3,4
I will read this and my output should be like
2006,1,2
2007,1,2
2008,1,2
2007,2,3
2008,2,3
2008,3,4
Giving the explanation, we will read the first line of the file and if the year any other than current year, we will print as many... (1 Reply)
Discussion started by: vasuarjula
1 Replies
3. Shell Programming and Scripting
All,
So, I have an ldif file that contains about 6500 users worth of data. Some users have a block of text I'd like to remove, while some don't.
Example (block of text in question is the block starting with "authAuthority: ;Kerberosv5"):
User with text block:
# username, users,... (7 Replies)
Discussion started by: staze
7 Replies
4. Shell Programming and Scripting
Hi gurus,
I wanted to split main file in 20 files with 2500 lines in each file. My main file conatins total 2500*20 lines. Following awk I made, but it is breaking with error.
awk '{ for (i = 1; i <= 20; i++) { starts=2500*$i-1; ends=2500*$i; NR>=starts && NR<=ends {f=My$i".txt"; print >> f;... (10 Replies)
Discussion started by: mukesh.lalwani
10 Replies
5. Shell Programming and Scripting
Dear All,
I have a data file input.csv like below. (Only five column shown here for example.)
Data1,StepNo,Data2,Data3,Data4
2,1,3,4,5
3,1,5,6,7
3,2,4,5,6
5,3,5,5,6
From this I want the below output
Data1,StepNo,Data2,Data3,Data4
2,1,3,4,5
3,1,5,6,7
where the second column... (4 Replies)
Discussion started by: ks_reddy
4 Replies
6. Shell Programming and Scripting
I have two files that contain overlapping positions. i want to put them together each overlapping entries in both files in to a new file (the entries of first file first and the entries of second file next) followed by blank line then next overlapping entries and so on.
input1
chr1 22 ... (10 Replies)
Discussion started by: raj_k
10 Replies
7. Shell Programming and Scripting
file1
chr pos1 pos2 pos3 pos4
1)chr1 1000 2000 3000 4000
2)chr1 1380 1480 6800 7800
3)chr1 6700 7700 1200 2200
4)chr2 8500 9500 5670 6670
file2
chr pos1 pos2 pos3 pos4
1)chr2 8500 9500 5000 6000
2)chr1 6700 7700 1200 2200
3)chr1 1380 1480 6700 7700
4)chr1 1000 2000 4900 5900
I... (2 Replies)
Discussion started by: data_miner
2 Replies
8. Shell Programming and Scripting
I tried this. It working fine for small tables. But it is giving values greater than zero in a big file with 8556 columns. Does any one know why ?
awk 'FNR == 1{print;next}{for(i=8556;i<=NF;i++) if($i <= 0){print;next}}' input (5 Replies)
Discussion started by: quincyjones
5 Replies
9. Shell Programming and Scripting
Hi all,
I'd always appreciate all helps from this site.
I would like to delete duplicated chunks of strings on the same row(?).
One chunk is comprised of four lines such as:
path name
starting point
ending point
voltage number
I would like to delete duplicated chunks on the same... (5 Replies)
Discussion started by: jypark22
5 Replies
10. Shell Programming and Scripting
Hi
Does anyone know of an efficient way to index a column of data in file2 to print the coresponding row in file1 which corresponds to the data in file2 AND 30 rows preceding and after the row in file1.
For example suppose you have a list of numbers in file2 (single column) as follows:... (6 Replies)
Discussion started by: Geneanalyst
6 Replies
LEARN ABOUT OSF1
learn
learn(1) General Commands Manual learn(1) NAME
learn - Provides computer-aided instruction for the C shell SYNOPSIS
learn [-directory] [subject] [lesson] The learn command provides computer-aided instruction courses and practice in the use of Tru64 UNIX. OPTIONS
Allows you to exercise a script in a nonstandard place. DESCRIPTION
To get started, enter learn; if this is the first time that you are invoking the learn command, you are guided through a series of ques- tions to determine what type of instruction you want to receive. If you have used learn before and left your last session without completing a subject, the program uses information in $HOME/.learnrc to start you up in the same place you left off. To bypass questions, enter a subject or lesson. In order to enter a lesson, you must know the lesson number that you received in a previ- ous learn command session. If you do not know the lesson number, enter the lesson number as a subject. The learn command searches for the first lesson containing the subject you specified. If the lesson is a - (dash), learn prompts for each lesson; this is useful for debug- ging. You can specify the following subjects: files editor vi morefiles macros eqn C SUBCOMMANDS
There are a few special commands. The bye command terminates a learn session, and the where command tells you of your progress (where m tells you more.) The again command redisplays the text of the lesson and again lesson lets you review lesson. The hint command prints the last part of the lesson script used to evaluate a response, while hint m prints the entire lesson script. This is useful for debugging lessons and might possibly give you an idea about what is expected. EXAMPLES
To take the online lesson about files, enter: learn files You are then prompted for further input. FILES
Playpen directories. Start-up information. SEE ALSO
Commands: csh(1), ex(1) learn(1)