Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

awk gsub

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting awk gsub
# 1  
Old 11-06-2012
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>

Code:
$ cat a.txt
"20121023","19301229712","100397"
"20121023","19361629712","100778"
"20121030A","19361630412","100838"
20121030","19361630412","100915"
$ awk -F',' '{fln1=gsub(/\"/,"") $1; print $1"|"fln1}' a.txt
20121023|620121023
20121023|620121023
20121030A|620121030A
20121030|520121030

Why am I getting '6' and '5' in the replaced column values?

Thanks,
-sri
# 2  
Old 11-06-2012
try:
Code:
awk -F',' '{f=$1; gsub("\"","",f);print $1"|"f}' a.txt

# 3  
Old 11-06-2012
Thanks rdrtx1,
i want to store the result of gsub in a variable that i have to further use later within the awk line

When i stored the gsub result in Y, it displays only the first character

Code:
$ awk -F',' '{f=$1; Y=gsub("\"","",f);print $1"|"f"|"Y}' a.txt
"20121023"|20121023|2
"20121023"|20121023|2
"20121030A"|20121030A|2
20121030"|20121030|1

# 4  
Old 11-06-2012
gsub returns the number of matches. In the example, the unquoted result is stored in variable f.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. 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... (6 Replies)
Discussion started by: yifangt
6 Replies

2. 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... (2 Replies)
Discussion started by: somu_june
2 Replies

3. 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... (6 Replies)
Discussion started by: Bubnoff
6 Replies

4. Shell Programming and Scripting

awk gsub with variables?

Hey, I would like to replace a string by a new one. Teh problem is that both strings should be variables to be flexible, because I am having a lot of files (with the same structure, but in different folders) for i in daysim_* do cd $i/5/ folder=`pwd |awk '{print $1}'` awk '{ if... (3 Replies)
Discussion started by: ergy1983
3 Replies

5. 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... (3 Replies)
Discussion started by: jclanc8
3 Replies

6. 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 (5 Replies)
Discussion started by: pinnacle
5 Replies

7. 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="." } {... (3 Replies)
Discussion started by: crosairs
3 Replies

8. 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 Replies)
Discussion started by: pxy2d1
4 Replies

9. 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... (4 Replies)
Discussion started by: npolite
4 Replies

10. 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 //) ... } (1 Reply)
Discussion started by: summer_cherry
1 Replies
Login or Register to Ask a Question