Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: awk Associative Array and/or Referring to Field by String (Nonconstant String Value)
Top Forums UNIX for Beginners Questions & Answers awk Associative Array and/or Referring to Field by String (Nonconstant String Value) Post 303030018 by jvoot on Monday 4th of February 2019 03:16:43 PM
Old 02-04-2019
Quote:
Originally Posted by RudiC
It does. Please apply what has been said to the repective line:
Code:
 PS028,006 [KJ <Cj>] [CM< <Pr>] [QWL TXNWNJ- <Ob>]
^          ^       ^ ^        ^ ^                ^--- last separator; $NF is empty
|          +-------+-+--------+-+-------------------- all FS
+---------------------------------------------------- field 1

Is that clearer now? If you want to remove the leading space from field 1, additional measures must be taken.
OK, thank you so much. I was under the impression that the field separator value was set to the *string* "][" rather than "]" or "[", thus I thought that $1 in the code would have been PS028,006 [KJ <Cj>, rather than PS028,006. This was very helpful. Thank you for taking the time to explain this.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Problem with lookup values on AWK associative array

I'm at wits end with this issue and my troubleshooting leads me to believe it is a problem with the file formatting of the array referenced by my script: awk -F, '{if (NR==FNR) {a=$4","$3","$2}\ else {print a "," $0}}' WBTSassignments1.txt RNCalarms.tmp On the WBTSassignments1.txt file... (2 Replies)
Discussion started by: JasonHamm
2 Replies

2. Shell Programming and Scripting

Awk Search text string in field, not all in field.

Hello, I am using awk to match text in a tab separated field and am able to do so when matching the exact word. My problem is that I would like to match any sequence of text in the tab-separated field without having to match it all. Any help will be appreciated. Please see the code below. awk... (3 Replies)
Discussion started by: rocket_dog
3 Replies

3. Shell Programming and Scripting

awk, associative array, compare files

i have a file like this < '393200103052';'H3G';'20081204' < '393200103059';'TIM';'20110111' < '393200103061';'TIM';'20060206' < '393200103064';'OPI';'20110623' > '393200103052';'HKG';'20081204' > '393200103056';'TIM';'20110111' > '393200103088';'TIM';'20060206' Now i have to generate a file... (9 Replies)
Discussion started by: shruthi123
9 Replies

4. Homework & Coursework Questions

passing letters from an array into a string for string comparison

attempting the hangman program. This was an optional assignment from the professor. I have completed the logical coding, debugging now. ##I have an array $wordString that initializes to a string of dashes ##reflecting the number of letters in $theWord ##every time the user enters a (valid)... (5 Replies)
Discussion started by: lotsofideas
5 Replies

5. Shell Programming and Scripting

Help needed on Associative array in awk

Hi All, I got stuck up with shell script where i use awk. The scenario which i am working on is as below. I have a file text.txt with contents COL1 COL2 COL3 COL4 1 A 500 400 1 B 500 400 1 A 500 200 2 A 290 300 2 B 290 280 3 C 100 100 I could able to sum col 3 and col4 based on... (3 Replies)
Discussion started by: imsularif
3 Replies

6. Shell Programming and Scripting

sed or awk command to replace a string pattern with another string based on position of this string

here is what i want to achieve... consider a file contains below contents. the file size is large about 60mb cat dump.sql INSERT INTO `table1` (`id`, `action`, `date`, `descrip`, `lastModified`) VALUES (1,'Change','2011-05-05 00:00:00','Account Updated','2012-02-10... (10 Replies)
Discussion started by: vivek d r
10 Replies

7. Shell Programming and Scripting

Split string into map (Associative Array)

Hi Input: { committed = 782958592; init = 805306368; max = 1051394048; used = 63456712; } Result: A map (maybe Associative Array) where I can iterate through the key/value. Something like this: for key in $map do echo key=$key value=$map done Sample output from the map: ... (2 Replies)
Discussion started by: chitech
2 Replies

8. Shell Programming and Scripting

Awk: Dealing with whitespace in associative array indicies

Is there a reliable way to deal with whitespace in array indicies? I am trying to annotate fails in a database using a table of known fails. In a begin block I have code like this: # Read in Known Fail List getline < "'"$failListFile"'"; getline < "'"$failListFile"'"; getline <... (6 Replies)
Discussion started by: Michael Stora
6 Replies

9. UNIX for Beginners Questions & Answers

String has * as the field delimiter and I need echo/awk to escape it, how?

Hi, I am trying to read an Oracle listener log file line by line and need to separate the lines into several fields. The field delimiter for the line happens to be an asterisk. I have the script below to start with but when running it, the echo command is globbing it to include other... (13 Replies)
Discussion started by: newbie_01
13 Replies

10. Shell Programming and Scripting

awk to average field if matching string in another

In the awk below I am trying to get the average of the sum of $7 if the string in $4 matches in the line below it. The --- in the desired out is not needed, it is just to illustrate the calculation. The awk executes and produces the current out. I am not sure why the middle line is skipped and the... (2 Replies)
Discussion started by: cmccabe
2 Replies

LEARN ABOUT DEBIAN

add_txrx

ADD_TXRX(1)						      General Commands Manual						       ADD_TXRX(1)

NAME

       add_txrx - add two new Data Sources called 'tx' and 'rx' to an RRD file

SYNOPSIS

       add_txrx <file> ...

DESCRIPTION

       This  utility  is used when upgrading from FlowScan-1.005 (or less) to FlowScan-1.006 (or greater).  It is used to add two new Data Sources
       to FlowScan ".rrd" files. e.g.:

	 $ make install # install FlowScan-1.006 in your existing FlowScan dir
	 $ cd $prefix/graphs
	 $ add_txrx total.rrd *.*.*.*_*.rrd

	 tx - a count of the unique source IP addresses
	      that have transmitted flows
	 rx - a count of the unique destination IP addresses
	      that have received flows

       These Data Sources will allows FlowScan users to calculate the average number of bytes, packets, and flows per host and	to  determine  the
       overall level of activity (in terms of numbers of individual hosts) for each subnet and for the entire campus.

       The  values  will  be recorded only if you use the TopN directive with the CampusIO and/or SubNetIO reports.  TopN was introduced in FlowS-
       can-1.006.

       For instance, if you set CampusIO's TopN to a value greater than zero, the tx value in FlowScan's  "total.rrd"  is  the	number	of  unique
       source IP addresses (hosts) from which FlowScan has seen outbound flows.

       Upgrading your RRD Files

       If  you	are upgrading, it is necessary to add two new Data Sources to the some of your existing RRD files. Before running flowscan, backup
       your RRD files, e.g.:

	 $ cd $prefix/graphs
	 $ tar cf saved_rrd_files.tar *.rrd

       then do this:

	 $ cd $prefix/graphs
	 $ ../bin/add_txrx total.rrd [1-9]*.*.*.*_*.rrd

SEE ALSO

       add_ds.pl(1), event2vrule(1), flowscan(1), ip2hostname(1), locker(1)

AUTHOR

       This manual page was written by Anibal Monsalve Salazar, for the Debian Project.

																       ADD_TXRX(1)
All times are GMT -4. The time now is 09:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy