[awk] working with two files Post: 302593221

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk not working as expected with BIG files ...

I am facing some strange problem. I know, there is only one record in a file 'test.txt' which starts with 'X' I ensure that with following command, awk /^X/ test.txt | wc -l This gives me output = '1'. Now I take out this record out of the file, as follows : awk /^X/ test.txt >...

2. Shell Programming and Scripting

Awk - Working with fixed length files

OK I am somewhat new to UNIX programming please see what you can do to help. I have a flat file that is a fixed length file containing different records based on the 1st character of each line. The 1st number at the beginning of the line is the record number, in this case it's record #1. I...

3. Shell Programming and Scripting

awk not working for me.

Hi All, I have a server.xml file which looks something like. <Connector port="8443" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" disableUploadTimeout="true" acceptCount="100"...

4. Shell Programming and Scripting

awk not working in script

Hi All, i'm trying awk commnad to read only file names with the help of below command :- ls -l tmp*.txt | awk { 'print $9' } | head -1 The command is working fine :o on command line, but when i trying it in script then its not working $var1=`ls -l tmp*.txt | awk { 'print $9' } | head -1`...

5. UNIX for Advanced & Expert Users

Awk expressions working & not working

Hi, Putting across a few awk expressions. Apart from the last, all of them are working. echo a/b/c | awk -F'/b/c$' '{print $1}' a echo a/b/c++ | awk -F'/b/c++' '{print $1}' a echo a/b/c++ | awk -F'/b/c++$' '{print $1}' a/b/c++ Request thoughts on why putting a '$' post double ++...

6. Shell Programming and Scripting

awk comparison not working

Can you please help me on belw awk comparsion which doest not work cat employee_list NAME Last-login Jack 03/25/2013 Maneul 03/26/2013 Eric 03/26/2013 Samuel 03/28/2013 loak 03/29/2013 zac 03/29/2013 this is my awk .. it gives me error cat employee_list | awk '(($2=='date...

7. Shell Programming and Scripting

awk help : if then else not working!

Hi All, This code is not working when trying with "else" : Am I missing something, uptime|sed 's/,/ /g' | awk '{ if ($10 >1) { print ( " :: UPTIME GT 1 : ALERT" )} ;else print "OK" }' Getting this error: syntax error The source line is 1. The error context is { if...

8. Shell Programming and Scripting

awk - why this is not working? trying next word!

Hi Experts, Can you please advise , why I am not able to make it work, or why this is not working: I spent quite a lot of time on this figuring out , but not working, file : This is a test file thanks for your reply This is another file again Have a nice day this is a small file...

9. Shell Programming and Scripting

Awk: System command not working in awk

Hi, I have around 10 files in a folder in which I want to change the file format from tab(\t) to pipe(|) with some changes in the fields as well. Below is the code, while tmp file is getting generated but move command is not working, please help Following is the code awk -F"\t" '{print...

10. Shell Programming and Scripting

Compare 2 files and extract the data which is present in other file - awk is not working

file2 content f1file2 content f1,1,2,3,4,5 f1,2,4,6,8,10 f10,1,2,3,4,5 f10,2,4,6,8,10 f5,1,2,3,4,5 f5,2,4,6,8,10awk 'FNR==NR{a;next}; !($1 in a)' file2 file1output f10,1,2,3,4,5 f10,2,4,6,8,10 f5,1,2,3,4,5 f5,2,4,6,8,10awk 'FNR==NR{a;next}; ($1 in a)' file2 file1output nothing...

LEARN ABOUT REDHAT

ppmquantall

ppmquantall(1)						      General Commands Manual						    ppmquantall(1)

NAME

       ppmquantall - run ppmquant on a bunch of files all at once, so they share a common colormap

SYNOPSIS

       ppmquantall [-ext extension] ncolors ppmfile ...

DESCRIPTION

       Takes a bunch of portable pixmap as input.  Chooses ncolors colors to best represent all of the images, maps the existing colors to the new
       ones, and overwrites the input files with the new quantized versions.

       If you don't want to overwrite your input files, use the -ext option.  The output files are then named the same as the input files, plus  a
       period and the extension text you specify.

       Verbose	explanation:  Let's  say  you've got a dozen pixmaps that you want to display on the screen all at the same time.  Your screen can
       only display 256 different colors, but the pixmaps have a total of a thousand or so different colors.  For a single pixmap you  solve  this
       problem	with  ppmquant;  this  script  solves  it for multiple pixmaps.  All it does is concatenate them together into one big pixmap, run
       ppmquant on that, and then split it up into little pixmaps again.

       (Note that another way to solve this problem is to pre-select a set of colors and then use ppmquant's -map option  to  separately  quantize
       each pixmap to that set.)

SEE ALSO

       ppmquant(1), ppm(5)

BUGS

       It's a csh script.  Csh scripts are not portable to System V.  Scripts in general are not portable to non-Unix environments.

AUTHOR

       Copyright (C) 1991 by Jef Poskanzer.

								   27 July 1990 						    ppmquantall(1)