Sponsored Content
Full Discussion: awk for-loop and NR
Top Forums Shell Programming and Scripting awk for-loop and NR Post 302432631 by vgersh99 on Friday 25th of June 2010 02:22:45 PM
Old 06-25-2010
Quote:
Originally Posted by ergy1983
yes, thats the problem, but a normal variable in a for-loop cannot adress the NR. Or better to say: I don't know how.

But how can I control from line 2 til line 4 do print with one of these solutions? (In reality the file consists 70 million lines and I have to seperate it into 600000 lines per new file)
Because the nawk-version is writing only writing one line into one file...

Thanks for your help
The "nawk-version" should write 2 lines/records per output file.
You can control the number of lines/records per file with 'FNR%2'
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Using AWK in a for loop

Hello, I am trying to use AWK to print only the first field of numerous text files, and then overwrite these files. They are of the format 1*2,3,4,5. I have tried the following code (using tcsh): foreach f (file1 file2 file3) cat $f | awk -F'*' '{print $1}' > $f end However, I get very... (4 Replies)
Discussion started by: Jahn
4 Replies

2. UNIX for Dummies Questions & Answers

for loop in awk?

I am new to unix and have pieced together two scripts that work independently. The first checks all the filesystems and reports which are running low on space. df -m | awk 'int($4) > 75 { print $1 " has only " $3 "mb free from a total of " $2 ", this filesystem is " $4 " full! \n" }... (1 Reply)
Discussion started by: Bdawk
1 Replies

3. Shell Programming and Scripting

Comparison and editing of files using awk.(And also a possible bug in awk for loop?)

I have two files which I would like to compare and then manipulate in a way. File1: pictures.txt 1.1 1.3 dance.txt 1.2 1.4 treehouse.txt 1.3 1.5 File2: pictures.txt 1.5 ref2313 1.4 ref2345 1.3 ref5432 1.2 ref4244 dance.txt 1.6 ref2342 1.5 ref2352 1.4 ref0695 1.3 ref5738 1.2... (1 Reply)
Discussion started by: linuxkid
1 Replies

4. Shell Programming and Scripting

awk - loop from a to z

Hello, I was wondering if it is possible to do a loop on letters rather than numbers with awk (gawk). Basically I used to do: echo "nothing" | gawk '{for(i=1;i<11;i++)print i}' But I would like to do something like that (which obviously does not work): echo "nothing" | gawk '{for(i in... (6 Replies)
Discussion started by: jolecanard
6 Replies

5. Shell Programming and Scripting

awk loop and using shell in awk

Hi, everyone! I have a file, when I print its $1 out it show several strings like this: AABBCC AEFJKLFG FALEF FAIWEHF What I want to do is that, after output of each record, search the string in all files in the same folder, print out the record and file name. This is what I want... (4 Replies)
Discussion started by: xshang
4 Replies

6. Shell Programming and Scripting

awk loop using array:wish to store array values from loop for use outside loop

Here's my code: awk -F '' 'NR==FNR { if (/time/ && $5>10) A=$2" "$3":"$4":"($5-01) else if (/time/ && $5<01) A=$2" "$3":"$4-01":"(59-$5) else if (/time/ && $5<=10) A=$2" "$3":"$4":0"($5-01) else if (/close/) { B=0 n1=n2; ... (2 Replies)
Discussion started by: klane
2 Replies

7. Shell Programming and Scripting

awk programming -Passing variable to awk for loop

Hi All, I am new to AWK programming. I have the following for loop in my awk program. cat printhtml.awk: BEGIN -------- <some code here> END{ ----------<some code here> for(N=0; N<H; N++) { for(M=5; M<D; M++) print "\t" D ""; } ----- } ... (2 Replies)
Discussion started by: ctrld
2 Replies

8. Shell Programming and Scripting

Using awk within a for loop

Hello, I currently have managed to get an awk function working inside a for loop that allows me to combine two files based on their headings but what I have not been able to do is print the output to files with variable names. awk ' NR==FNR {a=$0; next} /^>/ {$0 = $0" "a;} ... (2 Replies)
Discussion started by: Allie_gastrator
2 Replies

9. UNIX for Beginners Questions & Answers

awk with For loop

Hi My Requirement is to take the sum of each column below is the input file. 1 2 3 4 1 2 3 4 1 2 3 4 Initial i was using below command to achieve my desired result. however this was adding the row and not column. i am not able understand why this is happening awk... (1 Reply)
Discussion started by: scriptor
1 Replies

10. UNIX for Beginners Questions & Answers

awk !seen[$]++ in else loop

Hi all, I was searching the net for a solution for my problem... unfortunately nothing so far. I want to sort on more than on column tab delimited file and keep the line if in the column I sort there is no value, but for those who have a value I want them only unique. I have tried the... (5 Replies)
Discussion started by: ksenia
5 Replies
set_color(1)							       fish							      set_color(1)

NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)
All times are GMT -4. The time now is 05:20 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy