Sponsored Content
Full Discussion: selecting lines using awk
Top Forums Shell Programming and Scripting selecting lines using awk Post 302475817 by vjramana on Tuesday 30th of November 2010 04:06:47 AM
Old 11-30-2010
selecting lines using awk

I have a file which contains five hundred thousand lines (500,000). I want to select lines of every 1000 lines from that file using AWK. I can think something like this in bash as below:

for lines in {0..500000..1000}
do
........
........
done

But I want to use AWK. I do not know how to construct in AWK and unfortunately I could not find example in online.

I appreciate if anyone could help.

Thank you.
Vijay
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Selecting Lines on text file

Hi All, I am creating a script that sends log data from text files to a Database and I will like to read sugestions, as I think that there might be better ways to achive this than with my shell script; maybe perl or I don't know, but I will like to read some sugestions. The log is from... (10 Replies)
Discussion started by: oconmx
10 Replies

2. Shell Programming and Scripting

about selecting lines

Hello , i got text file like that' C:\Users\Public\Pictures\Sample Pictures\aa.jpg C:\Users\Public\Pictures\Sample Pictures\thumb.jpg C:\Users\Public\Pictures\vv\cc.jpg C:\Users\Public\Pictures\Sample Pictures\ee.jpg C:\Users\Public\aa\Sample Pictures\cvswsr.jpg... (1 Reply)
Discussion started by: davidkhan
1 Replies

3. Shell Programming and Scripting

Selecting lines with sed

Hi all, I have a file with special characters like this file1 691775025 ýÄqJ8^Z^Y{ 2004-08-23E P 100.00 45585025 0527541139295037342008-07-25OEP 100.00 6983025 ýB<9D>x<^F^Xb 2004-11-16SPP 100.00 I need a sed command to print the lines which don't have special characters.ie., only line 2... (9 Replies)
Discussion started by: allinshell
9 Replies

4. Shell Programming and Scripting

Selecting a range of Lines

Hi All, Is there a way to get a range of lines from a file??? I want to search through a set of scripts and need to select the group of lines which do the FTP. Say, Line1 Line2 ftp SERVER user UNAME PASS send FILE_TO_BE_SENT close Line3 Line4 Line5 ftp SERVER1 user USER1 PASS1... (6 Replies)
Discussion started by: beinthemiddle
6 Replies

5. Shell Programming and Scripting

Selecting lines of a file

Say I wanted to select the 5th line of a file without knowing the context of the file. Would I use grep and pipe it into wc or is there a more simple way of doing this? (3 Replies)
Discussion started by: puttster
3 Replies

6. Shell Programming and Scripting

Selecting specific 'id's from lines and columns using 'SED' or 'AWK'

Hello experts, I am new to this group and to 'SED' and 'AWK'. I have data (text file) with 5 columns (C_1-5) and 100s of lines (only 10 lines are shown below as an example). I have to find or select only the id numbers (C-1) of specific lines with '90' in the same line (of C_3) AND with '20' in... (6 Replies)
Discussion started by: kamskamu
6 Replies

7. Shell Programming and Scripting

selecting and deleting specific lines with condition

I have a set of data as below: The first field, $1 represent "|". The $3 (3rd field) and $6 (6th field) in my data file represent "number-molecule" which has arrangement as below: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ... (9 Replies)
Discussion started by: vjramana
9 Replies

8. Shell Programming and Scripting

sum of a column and selecting lines with value above threshold

Hi again, I need to further process the results of a previous manipulation. I have a file with three columns e.g. AAA5 0.00175 1.97996e-06 AAA5 0.01334 2.14159e-05 AAA5 0.01340 4.12155e-05 AAA5 0.01496 1.10312e-05 AAA5 0.51401 0.0175308 BB0 0.00204 2.8825e-07 BB0 0.01569 7.94746e-07 BB0... (6 Replies)
Discussion started by: f_o_555
6 Replies

9. Shell Programming and Scripting

Help with awk for selecting lines in a file avoiding repetition

Hello, I am using Awk in UBUNTU 12.04. I have a file as following with 48,432,354 lines and 4 fields. The file has this structure (There are repetitions of the first column in several lines) AB_14 S54 A G AB_14 S55 A A AB_14 S56 G G GO_15 S45 T A GO_15 S46 A A PT_16 S33 C C PT_16 ... (4 Replies)
Discussion started by: Homa
4 Replies

10. Shell Programming and Scripting

Selecting lines having same values for first two columns

Hello to all. This is first post. Kindly excuse me if I do not adhere to any rules and regulations of this forum. I have a file containing some rows with three columns each per row(separeted by a space). There are certain rows for which first two columns have same value but the value in... (6 Replies)
Discussion started by: manojmalhotra13
6 Replies
fmt(1)							      General Commands Manual							    fmt(1)

NAME
fmt - format text SYNOPSIS
width] [file...] DESCRIPTION
The command is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the width option. The default width is 72. concatenates the arguments. If none are given, formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. does not fill lines beginning with a period for compatibility with Nor does it fill lines starting with Indentation is preserved in the output and input lines with differing indentation are not joined (unless is used). can also be used as an in-line text filter for the command: reformats the text between the cursor location and the end of the paragraph. Options recognizes the following options: Crown margin mode. Preserve the indentation of the first two lines within a paragraph and align the left margin of each subsequent line with that of the second line. This is useful for tagged paragraphs. Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such "formatted" text, from being unduly combined. Fill output lines to up to width columns. WARNINGS
The width option is acceptable for BSD compatibility, but it may go away in future releases. SEE ALSO
nroff(1), vi(1). fmt(1)
All times are GMT -4. The time now is 12:34 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy