edit fields awk Post: 302428398

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Hi, I'm a newbie to sed and I'm having trouble working with sed and fields. Suppose I have a text file with: AAA RFG:$2.10:6:25Oct06 WDD GGTR:$3.50:5:25Oct06 ADDSJ OO:$1.37:3:26Oct07 UGBDN S:$4.73:1:27Oct06 USY ADC:$2.38:20:27Oct06 And I want to substitute field 2 of line 3 with, say,...

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Hi, I am having a user.txt contains the name of users and passwd.txt file contains as passwd.txt $cat usr.txt root bin daemon cap $cat passwd.txt root:x:0:0:root:/root:/usr/bin/ksh bin:x:1:1:bin:/bin:/sbin/csh daemon:x:2:2:daemon:/sbin:/usr/bin/ksh adm:x:3:4:adm:/var/adm:/sbin/nologin...

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use awk to edit a file..pls help

hey i want to over write the fourth field of a ':' delimited file by first finding the required row by using grep. i have done the following cat file | grep no. | awk -F ':' { $4=count; print $1:$2:$3:$4;} the correct values are being printed but nothin is bein added to the file..please...

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Edit a file using awk ?

Hey guys, I'm trying to learn a bit of awk/sed and I'm using different sites to learn it from, and i think I'm starting to get confused (doesn't take much!). Anyway, say I have a csv file which has something along the lines of the following in it:"test","127.0.0.1","startup...

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Hi , I have a query like select err_qty,drop_qty,unbld_qty,orig_qty from usage_data; I need to store the values of these fetched fields in variables, Need to edit them and update the new values into the table. Can anyone please help me in writing this piece of code:(

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Hi All, I am looking for an awk script to do the following Join the fields together only if the first 4 fields are same. Can it be done with join function in awk?? a,b,c,d,8,,, a,b,c,d,,7,, a,b,c,d,,,9, a,b,p,e,8,,, a.b,p,e,,9,, a,b,p,z,,,,9 a,b,p,z,,8,, desired output: ...

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How to print 1st field and last 2 fields together and the rest of the fields after it using awk?

Hi experts, I need to print the first field first then last two fields should come next and then i need to print rest of the fields. Input : a1,abc,jsd,fhf,fkk,b1,b2 a2,acb,dfg,ghj,b3,c4 a3,djf,wdjg,fkg,dff,ggk,d4,d5 Expected output: a1,b1,b2,abc,jsd,fhf,fkk...

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awk - compare 1st 15 fields of record with 20 fields

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awk sort based on difference of fields and print all fields

Hi I have a file as below <field1> <field2> <field3> ... <field_num1> <field_num2> Trying to sort based on difference of <field_num1> and <field_num2> in desceding order and print all fields. I tried this and it doesn't sort on the difference field .. Appreciate your help. cat...

LEARN ABOUT ULTRIX

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed command to edit fields

Discussion started by: aloe_vera

2. Shell Programming and Scripting

awk sed cut? to rearrange random number of fields into 3 fields

Discussion started by: axo959

3. Shell Programming and Scripting

search and edit in the same file using awk

Discussion started by: Manabhanjan

4. Shell Programming and Scripting

use awk to edit a file..pls help

Discussion started by: dhe.arora