Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: largest field , awk , help
Top Forums Shell Programming and Scripting largest field , awk , help Post 302175709 by yunccll on Saturday 15th of March 2008 06:44:18 AM
Old 03-15-2008
try this code:
Code:
#!/bin/bash

#constant
INFILE="max.txt"

#core script
awk ' BEGIN { OFS=FS=":"; cur=max=0; seen=""}
        {
           cur = length($1)
           if(cur > max ){
              seen = $1 " " $0
           }
           else if(cur == max){
              seen = seen "\n"  $1 " " $0
           }
        }
        END { print seen }'  $INFILE
#exit normally
exit 0

.Aaron
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

AWK (how) to get smallest/largest nr of ls -la

Hey, This is a long-shot however, I am stuck with the following problem: I have the output from ls -la, and I want to sort some of that data out by using AWK to filter it. ls -la | awk -f scriptname.awk Input: For example: drwxr-xr-x 3 user users 4096 2010-03-14 20:15 bin/... (5 Replies)
Discussion started by: abciscool
5 Replies

2. Shell Programming and Scripting

awk, comma as field separator and text inside double quotes as a field.

Hi, all I need to get fields in a line that are separated by commas, some of the fields are enclosed with double quotes, and they are supposed to be treated as a single field even if there are commas inside the quotes. sample input: for this line, 5 fields are supposed to be extracted, they... (8 Replies)
Discussion started by: kevintse
8 Replies

3. Shell Programming and Scripting

awk second largest, third largest value

I have two text files like this: file1.txt: 133 10 133 22 133 13 133 56 133 78 133 98 file2.txt: 158 38 158 67 158 94 158 17 158 23 I'm basically trying to have awk check the second largest value of the second column of each text file, and cat it to its own text file. There... (13 Replies)
Discussion started by: theawknewbie
13 Replies

4. Shell Programming and Scripting

AWK: Pattern match between 2 files, then compare a field in file1 as > or < field in file2

First, thanks for the help in previous posts... couldn't have gotten where I am now without it! So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following: If $1... (4 Replies)
Discussion started by: right_coaster
4 Replies

5. UNIX for Dummies Questions & Answers

Printf awk: argument to adjust automatically width to the largest value

Hi ! Here is an example of a tab-delimited file with variable width values in field 2 (space separated values). As the real file contains lot of lines, I can adjust manually the width to the largest value in field 2. Does it exist an argument to do it automatically? input.tab:... (4 Replies)
Discussion started by: lucasvs
4 Replies

6. Shell Programming and Scripting

awk to parse field and include the text of 1 pipe in field 4

I am trying to parse the input in awk to include the |gc= in $4 but am not able to. The below is close: awk so far: awk '{sub(/\|]+]++/, ""); print }' input.txt Input chr1 955543 955763 AGRN-6|pr=2|gc=75 0 + chr1 957571 957852 AGRN-7|pr=3|gc=61.2 0 + chr1 970621 ... (7 Replies)
Discussion started by: cmccabe
7 Replies

7. Shell Programming and Scripting

awk to combine all matching fields in input but only print line with largest value in specific field

In the below I am trying to use awk to match all the $13 values in input, which is tab-delimited, that are in $1 of gene which is just a single column of text. However only the line with the greatest $9 value in input needs to be printed. So in the example below all the MECP2 and LTBP1... (0 Replies)
Discussion started by: cmccabe
0 Replies

8. Shell Programming and Scripting

awk to adjust coordinates in field based on sequential numbers in another field

I am trying to output a tab-delimited result that uses the data from a tab-delimited file to combine and subtract specific lines. If $4 matches in each line then the first matching sequential $6 value is added to $2, unless the value is 1, then the original $2 is used (like in the case of line... (3 Replies)
Discussion started by: cmccabe
3 Replies

9. Shell Programming and Scripting

awk to update field using matching value in file1 and substring in field in file2

In the awk below I am trying to set/update the value of $14 in file2 in bold, using the matching NM_ in $12 or $9 in file2 with the NM_ in $2 of file1. The lengths of $9 and $12 can be variable but what is consistent is the start pattern will always be NM_ and the end pattern is always ;... (2 Replies)
Discussion started by: cmccabe
2 Replies

10. UNIX for Beginners Questions & Answers

Problem with getting awk to multiply a field by a value set based on condition of another field

Hi, So awk is driving me crazy on this one. I have searched everywhere and read man, docs and every related post Google can find and still no luck. The actual files I need to run this on are sensitive in nature, but it is the same thing as if I needed to calculate weighted grades for multiple... (15 Replies)
Discussion started by: cotilloe
15 Replies

LEARN ABOUT DEBIAN

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)
All times are GMT -4. The time now is 03:33 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy