Sponsored Content
Top Forums Shell Programming and Scripting Extract string from multiple file based on line count number Post 302510710 by cgkmal on Monday 4th of April 2011 06:05:33 PM
Old 04-04-2011
Quote:
Originally Posted by alister
That won't work because of the "-" used by the exponential notation. See my post for a gsub() sequence that should work.

Regards,
Alister
Right!,

Thanks for your observation
Alister, I had not considered the "E-[0-9][0-9]" part.
The option would be:
Code:
awk '{$0=gensub(/([0-9])-/,"\\1 -","g");a[FNR]=a[FNR]?a[FNR] FS $3:$3}END{for (i=1;i in a;i++) print a[i]}' FILE* 

or a little bit shorter:
awk '{$0=gensub(/([0-9])-/,"\\1 -","g");a[FNR]=a[FNR]?a[FNR] FS $3:$3}END{for(i in a) print a[i]}' FILE*

Regards
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

count the number of files which have a search string, but counting the file only once

I need to count the number of files which have a search string, but counting the file only once if search string is found. eg: File1: Please note that there are 2 occurances of "aaa" aaa bbb ccc aaa File2: Please note that there are 3 occurances of "aaa" aaa bbb ccc... (1 Reply)
Discussion started by: sudheshnaiyer
1 Replies

2. Shell Programming and Scripting

Extract a line from a file using the line number

I have a shell script and want to assign a value to a variable. The value is the line exctrated from a file using the line number. The line number it is not fix, and could change any time. I have tried sed, awk, head .. See my script # Get randome line number from the file #selectedline = `awk... (1 Reply)
Discussion started by: zambo
1 Replies

3. Shell Programming and Scripting

extract a line from a file using the line number

Hello, I am having trouble extracting a specific line from a file when the line number is known. My first attempt involved grep -n 'hi' (the word 'hi will always be there) to get the line number before the line that I actually want (line 4). Extra Notes: -I am working in a bash script. -The... (7 Replies)
Discussion started by: grandtheftander
7 Replies

4. UNIX for Dummies Questions & Answers

Extract a specific number from an XML file based on the start and end tags

Hello People, I have the following contents in an XML file ........... ........... .......... ........... <Details = "Sample Details"> <Name>Bob</Name> <Age>34</Age> <Address>CA</Address> <ContactNumber>1234</ContactNumber> </Details> ........... ............. .............. (4 Replies)
Discussion started by: sushant172
4 Replies

5. Shell Programming and Scripting

How to extract specific data and count number containing sets from a file?

Hello everybody! I am quit new here and hope you can help me. Using an awk script I am trying to extract data from several files. The structure of the input files is as follows: TimeStep parameter1 parameter2 parameter3 parameter4 e.g. 1 X Y Z L 1 D H Z I 1 H Y E W 2 D H G F 2 R... (2 Replies)
Discussion started by: Daniel8472
2 Replies

6. Shell Programming and Scripting

How to count number of occurances of string in a file?

Gurus, Need little guidance. I have A.txt and B.txt file. B.txt file contains Unique strings. Sample content of B.txt file for which i cut the fourth column uniquely and output directed to B.txt file And A.txt file contains the above string as a fourth column which is last column. So A.txt... (7 Replies)
Discussion started by: Shirisha
7 Replies

7. Shell Programming and Scripting

extract a line from a file by line number

Hi guys, does anyone know how to extract(grep) a line from the file, if I know the line number? Thanks a lot. (9 Replies)
Discussion started by: aoussenko
9 Replies

8. Shell Programming and Scripting

Merge two non-consecutive lines based on line number or string

This is a variation of an earlier post found here: unixcom/shell-programming-scripting/159821-merge-two-non-consecutive-lines.html User Bartus11 was kind enough to solve that example. Previously, I needed help combining two lines that are non-consecutive in a file. Now I need to do the... (7 Replies)
Discussion started by: munkee
7 Replies

9. Shell Programming and Scripting

HELP: Shell Script to read a Log file line by line and extract Info based on KEYWORDS matching

I have a LOG file which looks like this Import started at: Mon Jul 23 02:13:01 EDT 2012 Initialization completed in 2.146 seconds. -------------------------------------------------------------------------------- -- Import summary for Import item: PolicyInformation... (8 Replies)
Discussion started by: biztank
8 Replies

10. Shell Programming and Scripting

Count number of occurrence of a string in file

if there's a file containing: money king money queen money cat money also money king all those strings are on one line in the file. how can i find out how many times "money king" shows up in the line? egrep -c "money king" wont work. (7 Replies)
Discussion started by: SkySmart
7 Replies
GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME
grub-render-label - generate a .disk_label for Apple Macs. SYNOPSIS
grub-render-label [OPTION...] [OPTIONS] DESCRIPTION
Render Apple .disk_label. -b, --bgcolor=COLOR use COLOR for background -c, --color=COLOR use COLOR for text -f, --font=FILE use FILE as font (PF2). -i, --input=FILE read text from FILE. -o, --output=FILE set output filename. Default is STDOUT -t, --text=STRING set the label to render -v, --verbose print verbose messages. -?, --help give this help list --usage give a short usage message -V, --version print program version Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. REPORTING BUGS
Report bugs to <bug-grub@gnu.org>. SEE ALSO
The full documentation for grub-render-label is maintained as a Texinfo manual. If the info and grub-render-label programs are properly installed at your site, the command info grub-render-label should give you access to the complete manual. grub-render-label (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-RENDER-LABEL(1)
All times are GMT -4. The time now is 12:40 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy