Sponsored Content
Top Forums Shell Programming and Scripting Replace 2nd column for each line in a csv file with fixed string+random number Post 302568459 by CarloM on Thursday 27th of October 2011 10:54:02 AM
Old 10-27-2011
'type' is literal text? Do you only want the first row, or the whole file?

Assuming it is and you want the whole thing:
Code:
nawk -F\; 'NR == 1 {sub ($2,"type"); print} NR > 1 {print}' infile.csv

or if you only want row 1:
Code:
nawk -F\; 'NR == 1 {sub ($2,"type"); print}' infile.csv


Last edited by CarloM; 10-27-2011 at 12:02 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Sed to replace second number in a random string

I need a sed line that will take STDM111 and change it to STDM161 the STDM will always be constant but the 3 numbers after will be random, I just need it to always replace the middle number with 6 regardless of what the numbers are. (8 Replies)
Discussion started by: glev2005
8 Replies

2. Shell Programming and Scripting

Replace 2nd column of CSV file with numbers on line

I have a csv file with occasional multiple entries in the second column. 111111,104,07-24-2011,3.15,N, 222222,020 140,07-24-2011,10.00,N,I want the result 111111,104,07-24-2011,3.15,N, 222222,020,07-24-2011,10.00,N, 222222,140,07-24-2011,10.00,N, I know I can get the output of the second... (5 Replies)
Discussion started by: ffdstanley
5 Replies

3. Shell Programming and Scripting

splitting a huge line of file into multiple lines with fixed number of columns

Hi, I have a huge file with a single line. But I want to break that line into lines of with each line having five columns. My file is like this: code: "hi","there","how","are","you?","It","was","great","working","with","you.","hope","to","work","you." I want it like this: code:... (1 Reply)
Discussion started by: rajsharma
1 Replies

4. Shell Programming and Scripting

search a string in a particular column of file and return the line number of the line

Hi All, Can you please guide me to search a string in a particular column of file and return the line number of the line where it was found using awk. As an example : abc.txt 7000,john,2,1,0,1,6 7001,elen,2,2,0,1,7 7002,sami,2,3,0,1,6 7003,mike,1,4,0,2,1 8001,nike,1,5,0,1,8... (3 Replies)
Discussion started by: arunshankar.c
3 Replies

5. UNIX for Dummies Questions & Answers

how to generate random number as as the first column of a txt file

Dear all, I have a question. I have a txt file say 4000 rows X 1800 Column. I 'd like to creat a new column as the first column which is a column of random numbers (n=4000) thanks a lot! Lin (2 Replies)
Discussion started by: forevertl
2 Replies

6. Shell Programming and Scripting

Replace column by random number addition

Here is my problem:- I have a file with pipe separated values. CR|20121021|079|ABC|N|DLS|00038|DLS|04750|1330597704|634234|634|0 CR|20121021|079|ABC|N|DLS|00038|DLS|05118|2071690102|354|351|3 CR|20121021|079|ABC|N|DLS|00038|DLS|05140|960051505|1088|1088|0... (4 Replies)
Discussion started by: Yoda
4 Replies

7. Shell Programming and Scripting

Replace 2nd column in file

I have following entries file abc.txt abc83.out.remote TRUE abc84.out.remote TRUE abc85.out.remote TRUE abc86.out.remote TRUE Please help me, how do i toggle the entries listed in 2nd column based on the search patterns (abcxx) abcxx, i can get... (14 Replies)
Discussion started by: sdosanjh
14 Replies

8. Shell Programming and Scripting

To replace the value of the column in a fixed width file

I have a fixed with file with header & trailer length having the same length of the detail record file. The details record length of this file is 24, for Header and Trailer the records will be padded with spaces to match the record length of the file Currently I am adding 3 spaces in header... (14 Replies)
Discussion started by: ginrkf
14 Replies

9. Shell Programming and Scripting

CSV file REPLACE COLUMN if it matches

I have a file cat 1.txt AAAA , BBBB , CCCC , DDDD DFDF , DFDF , DFDF , FDDD AA11 , DFDF , 0000 , UTIO ADSD , WERT, 0000 , JKJL If the 3rd column is not equal to "0000" , then it should replace "0000" with "XXXX" and if its equal to "0000" then print the line as it is. need help. (9 Replies)
Discussion started by: aravindj80
9 Replies

10. Shell Programming and Scripting

Replace all string matches in file with unique random number

Hello Take this file... Test01 Ref test Version 01 Test02 Ref test Version 02 Test66 Ref test Version 66 Test99 Ref test Version 99 I want to substitute every occurrence of Test{2} with a unique random number, so for example, if I was using sed, substitution would be something... (1 Reply)
Discussion started by: funkman
1 Replies
TMPFILE(3)								 1								TMPFILE(3)

tmpfile - Creates a temporary file

SYNOPSIS
resource tmpfile (void ) DESCRIPTION
Creates a temporary file with a unique name in read-write (w+) mode and returns a file handle . The file is automatically removed when closed (for example, by calling fclose(3), or when there are no remaining references to the file handle returned by tmpfile(3)), or when the script ends. For details, consult your system documentation on the tmpfile(3) function, as well as the stdio.h header file. RETURN VALUES
Returns a file handle, similar to the one returned by fopen(3), for the new file or FALSE on failure. EXAMPLES
Example #1 tmpfile(3) example <?php $temp = tmpfile(); fwrite($temp, "writing to tempfile"); fseek($temp, 0); echo fread($temp, 1024); fclose($temp); // this removes the file ?> The above example will output: writing to tempfile SEE ALSO
tempnam(3), sys_get_temp_dir(3). PHP Documentation Group TMPFILE(3)
All times are GMT -4. The time now is 02:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy