Help with awk, where line length and field position are variable Post: 302848997

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Deleting Characters at specific position in a line if the line is certain length

I've got a file that would have lines similar to: 12345678 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 23456781 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 34567812 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 45678123 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 xx.00...

2. Shell Programming and Scripting

To trim Certain field in a line of a file and replace the new string in that position

To trim 3rd field in for all the lines of a file and replace the modified string in that particular field. For example i have a file called Temp.txt having content Temp.txt ----------------- 100,234,M1234 400,234,K1734 300,345,T3456 ---------------- So the modified file output should...

3. Shell Programming and Scripting

Inserting a line when its length is variable

Hi Unix experts I have simple text files in which the number of lines vary from one file to another. They look like the following: # # . . 34 46 76 72 39 68 I want to grab the first number of the last line of each file (let's say A= 39 in the above example), which is...

4. Shell Programming and Scripting

perl or awk, field length check

Hi Everyone, 1.txt a;1234;134;1111111 b;123;123;1111111 c;123;1334;1111111 d;1234;1234;1111111 output a;1234;134;1111111 c;123;1334;1111111 d;1234;1234;1111111 if field2 legth>3 or field3 length >3, then output. Please advice. Thanks

5. UNIX for Dummies Questions & Answers

print variable length text from the middle of a line?

I am trying to get text from a webpage, in terminal form. So far I am: 1. getting the html for the page printed using curl (curl -s webpage.com), which is then 2. piped to awk, printing line number 29 (awk NR==29), then 3. this is where I am sort of lost. I know where in the printed line I...

6. Shell Programming and Scripting

Flat file-make field length equal to header length

Hello Everyone, I am stuck with one issue while working on abstract flat file which i have to use as input and load data to table. Input Data- ------ ------------------------ ---- ----------------- WFI001 Xxxxxx Control Work Item A Number of Records ------ ------------------------...

7. Shell Programming and Scripting

Extract substring specif position and length from file line

Hi gurus, I am trying to figure out how to extract substring from file line (all lines in file), as specified position and specified legth. Example input (file lines) dhaskjdsa dsadhkjsa dhsakjdsad hsadkjh dsahjdksahdsad sahkjd sahdkjsahd sajkdh adhjsak I want to extract substring on...

8. Shell Programming and Scripting

How to change variable length field?

Hello, I have a file with a date field with various lengths. For example: m/d/yyyy hh:mm or h:mm mm/dd/yyyy hh:mm or h:mm Is there a way using sed or awk to change the field to m/d/y ? I don't need the hours and minutes in that field, just the date in the proper format. Thanks in...

9. Shell Programming and Scripting

awk to output the percentage of a field compared to length

The awk below using the sample input would output the following: Basically, it averages the text in $5 that matches if $7 < 30 . awk '{if(len==0){last=$5;total=$7;len=1;getline}if($5!=last){printf("%s\t%f\n", last,...

10. Shell Programming and Scripting

Using awk to add length of matching characters between field in file

The awk below produces the current output, which will add +1 to $3. However, I am trying to add the length of the matching characters between $5 and $6 to $3. I have tried using sub as a variable to store the length but am not able to do so correctly. I added comments to each line and the...

LEARN ABOUT DEBIAN

dpkg-awk

DPKG-AWK(1)						      General Commands Manual						       DPKG-AWK(1)

NAME

       dpkg-awk - Utility to read a dpkg style db file

SYNOPSIS

       dpkg-awk [(-f|--file) filename] [(-d|--debug) ##] [(-s|--sort) list] [(-rs|--rec_sep) ??] '<fieldname>:<regex>' ... -- <out_fieldname> ..

DESCRIPTION

       dpkg-awk  Parses  a  dpkg status file (or other similarly formatted file) and outputs the resulting records.  It can use regex on the field
       values to limit the returned records, it can also be told which fields to output, and it can sort the matched fields.

OPTIONS

       -f filename
       --file filename
	      The file to parse.  The default is /var/lib/dpkg/status.

       -d [#]
       --debug [#]
	      Each time this is specified, it increased the debug level.

       -s field(s)
       --sort field(s)
	      A space or comma separated list of fields to sort on.

       -n field(s)
       --numeric field(s)
	      A space or comma separated list of fields that should be interpreted as numeric in value.

       -rs ??
       --rec_sep ??
	      Output this string at the end of each output paragraph.

       -h
       --help Display some help.

       fieldname
	      The fields from the file, that are matched with the regex given.	The fieldnames are case insensitive.

       out_fieldname
	      The fields from the file, that are output for each record.  If the first field listed begins with ^, then the list  of  fields  that
	      follows will NOT be output.

BUGS

       Be  warned  that  the author has only a shallow understanding of the dpkg packaging system, so there are probably tons of bugs in this pro-
       gram.

       This program comes with no warranties.  If running this program causes fire and brimstone to rain down upon the earth, you will be on  your
       own.

       This program accesses the dpkg database directly in places, querying for data that cannot be gotten via dpkg.

AUTHOR

       Adam Heath <doogie@debian.org>

DEBIAN
								 Debian Utilities						       DPKG-AWK(1)