awk gsub with variables? Post: 302433972

Login or Register to Ask a Question and Join Our Community

Sponsored Content

Top Forums Shell Programming and Scripting awk gsub with variables? Post 302433972 by ergy1983 on Thursday 1st of July 2010 03:52:54 AM

Old

07-01-2010

Registered User

Hmm, yeah, but it doesn't work.

it works, if I am using the gsub like this:

Quote:

awk '{ if (NR==14) {gsub($2, "/bla/bla/5/"); print} }' ill_5_06.hea

But it doesn't work if the second one is replace by a variable, too.
Maybe the problem could be solved if the content of $folder is not

Code:

folder=/bla/bla/

then

Code:

folder="/bla/bla/"

But how to tell awk that ' " ' isn't the beginning of a string? (folder=`pwd |awk '{print $1}'`). Because /" also doesn't work...

Thanks

ergy1983

View Public Profile for ergy1983

Find all posts by ergy1983

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

use var in gsub of awk

Hi all, This problem has cost me half a day, and i still do not know how to do. Any help will be appreciated. Thanks advance. I want to use a variable as the first parameters of gsub function of awk. Example: { ... arri]=gsub(i,tolower(i),$1) (which should be ambraced by //) ... }

2. Shell Programming and Scripting

Help with AWK and gsub

Hello, I have a variable that displays the following results from a JVM.... 1602100K->1578435K I would like to collect the value of 1578435 which is the value after a garbage collection. I've tried the following command but it looks like I can't get the > to work. Any suggestions as...

3. Shell Programming and Scripting

awk gsub

Hi all I want to do a simple substitution in awk but I am getting unexpected output. My function accepts a time and then prints out a validation message if the time is valid. However some times may include a : and i want to strip this out if it exists before i get to the validation. I have shown...

4. Shell Programming and Scripting

Awk Gsub Query

Hi, Can some one please explain the following line please throw some light on the ones marked in red awk '{print $9}' ${FTP_LOG} | awk -v start=${START_DATE} 'BEGIN { FS = "." } { old_line1=$0; gsub(/\-/,""); if ( $3 >= start ) print old_line1 }' | awk -v end=${END_DATE} 'BEGIN { FS="." } {...

5. Shell Programming and Scripting

Awk gsub error.

I want to replace comma with space and "*646#" with space. I am using the following code: nawk -F"|" '{gsub(","," ",$3); gsub(/\*646\#/"," ",$3);print}' OFS="|" file I am getting following error: Help is appreciated

6. Shell Programming and Scripting

Help with awk and gsub using C shell

Being new to awk, I am still running into little stupid things. For this issues I am trying to search for all occurrences of a string in a file and replace all of those occurrences with a replacement string. I tried doing awk '{gsub("|750101|", "|000000|", $0)}' infile > outfile Unix...

7. Shell Programming and Scripting

Awk; gsub in fields 3 and 4

I want to transform a log file into input for a database. Here's the log file: Tue Aug 4 20:17:01 PDT 2009 Wireless users: 339 Daily Average: 48.4285 = Tue Aug 11 20:17:01 PDT 2009 Wireless users: 295 Daily Average: 42.1428 = Tue Aug 18 20:17:01 PDT 2009 Wireless users: 294 Daily...

8. Shell Programming and Scripting

awk gsub

Hi, I want to print the first column with original value and without any double quotes The output should look like <original column>|<column without quotes> $ cat a.txt "20121023","19301229712","100397" "20121023","19361629712","100778" "20121030A","19361630412","100838"...

9. UNIX for Dummies Questions & Answers

awk gsub with variables

Hello, I'm trying to substitute a string with leading zero for all the records except the trailer record using awk command and with variables. The input file test_med1.txt has data like below 1234ABC...........................9200............LF...

10. Shell Programming and Scripting

Gsub function in awk

Hello, I had some difficulty to understand the gsub function and maybe the regex in this script to remove all the punctuations: awk 'gsub(//, " ", $0)' text.txtFile text.txt: This is a test for gsub I typed this random text file which contains punctuation like ,.;!'"?/\ etc. The script...

LEARN ABOUT CENTOS

rmf

RMF(1)								     [nmh-1.5]								    RMF(1)

NAME

       rmf - remove an nmh folder

SYNOPSIS

       rmf [+folder] [-interactive | -nointeractive] [-version] [-help]

DESCRIPTION

       Rmf removes all of the messages (files) within the specified (or default) folder, and then removes the folder (directory) itself.

       If  there  are  any  files  within the folder which are not a part of nmh, they will not be removed, and an error will be produced.  If the
       folder is given explicitly or the -nointeractive option is given, then the folder will be removed  without  confirmation.   Otherwise,  the
       user  will be asked for confirmation.  If rmf can't find the current folder, for some reason, the folder to be removed defaults to `+inbox'
       (unless overridden by user's profile entry "Inbox") with confirmation.

       If the folder being removed is a subfolder, the parent folder will become the new current folder, and rmf will produce  a  message  telling
       the user this has happened.  This provides an easy mechanism for selecting a set of messages, operating on the list, then removing the list
       and returning to the current folder from which the list was extracted.

       If rmf s used on a read-only folder, it will delete all the (private) sequences (i.e., "atr-seq-folder" entries) for this folder from  your
       context without affecting the folder itself.

       Rmf irreversibly deletes messages that don't have other links, so use it with caution.

FILES

       $HOME/.mh_profile	  The user profile

PROFILE COMPONENTS

       Path:		    To determine the user's nmh directory
       Current-Folder:	    To find the default current folder
       Inbox:		    To find the default inbox

SEE ALSO

       rmm(1)

DEFAULTS

       `+folder' defaults to the current folder, usually with confirmation
       `-interactive' if +folder' not given, `-nointeractive' otherwise

CONTEXT

       Rmf  will  set the current folder to the parent folder if a subfolder is removed; or if the current folder is removed, it will make "inbox"
       current.  Otherwise, it doesn't change the current folder or message.

BUGS

       Although intuitively one would suspect that rmf works recursively, it does not.	Hence if you have a sub-folder within a folder,  in  order
       to rmf the parent, you must first rmf each of the children.

MH.6.8								   11 June 2012 							    RMF(1)