Visit Our UNIX and Linux User Community


Add a character C in a column if that column is blank


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Add a character C in a column if that column is blank
# 22  
Old 08-28-2013
Perhaps you are using a somewhat older version of mawk who until very recently did not understand character classes. Try:
Code:
awk -W version


Last edited by Scrutinizer; 08-28-2013 at 02:08 PM..

Previous Thread | Next Thread
Test Your Knowledge in Computers #894
Difficulty: Medium
A tr command is also part of ASCII's MSX-DOS2 Tools for MSX-DOS version 2.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Add column and multiply its result to all elements of another column

Input file is as follows: 1 | 6 2 | 7 3 | 8 4 | 9 5 | 10 Output reuired (sum of the first column $1*$2) 1 | 6 | 90 2 | 7 | 105 3 | 8 | 120 4 |9 | 135 5 |10 | 150 Please enclose sample input, sample output, and code... (5 Replies)
Discussion started by: Sagar Singh
5 Replies

2. Shell Programming and Scripting

Split column when value in column is blank in any row

Hi Experts, In short : Need to split file when field in column 5 is blank and need to generate two file in which column 5 is blank and other in which column 5 has values along with other rows and column data My issue is i am not able to get header for column from raw file into new file which... (1 Reply)
Discussion started by: as7951
1 Replies

3. Shell Programming and Scripting

Add Column base on other Column Data

HI Guys, I want add one extra Column base on 3rd Column . Input :- M204 MS204_154 :vsDataUeMe M204 MS204_154 es:sMeasure 0 M204 MS204_154 es:90ilterCoe 9 M204 MS204_154 es:searchE9090ortTime 40 M204 MS204_154 es:servOrPrioI90HoTimer 4000 M204 MS204_154 es:ueMeajllls154545 TRUE... (5 Replies)
Discussion started by: pareshkp
5 Replies

4. Shell Programming and Scripting

Insert data in first column(if blank) from previous line first column

Dear Team I need to insert field(which is need to taken from previous line's first field) in first column if its blank. I had tried using sed but not find the way. Detail input and output file as below. Kindly help for same. INPUT: SCGR SC DEV DEV1 NUMDEV DCP ... (7 Replies)
Discussion started by: jaydeep_sadaria
7 Replies

5. Shell Programming and Scripting

Add all 4 column entries for similar column ids

Hi, I want to write a script which will add the entries in all columns for the same column id. I can do it in excel, but I need to do this for 384 columns which will come down to 96 (384/4). How can I do this iteratively A A A A B B B B C C C C 1 0 1 0 2 1 4 5 3 4 5 6 2 0 0 2 3 5 70 100 1... (7 Replies)
Discussion started by: Diya123
7 Replies

6. Shell Programming and Scripting

Remove the first character from the fourth column only if the column has four characters

I have a file as follows ATOM 5181 N AMET K 406 12.440 6.552 25.691 0.50 7.37 N ATOM 5182 CA AMET K 406 13.685 5.798 25.578 0.50 5.87 C ATOM 5183 C AMET K 406 14.045 5.179 26.909 0.50 5.07 C ATOM 5184 O MET K... (14 Replies)
Discussion started by: hasanabdulla
14 Replies

7. Shell Programming and Scripting

to add special tag to a column based on column condition

Hi All, I have following html code <TR><TD>9</TD><TD>AR_TVR_TBS </TD><TD>85000</TD><TD>39938</TD><TD>54212</TD><TD>46</TD></TR> <TR><TD>10</TD><TD>ASCV_SMY_TBS </TD><TD>69880</TD><TD>33316</TD><TD>45698</TD><TD>47</TD></TR> <TR><TD>11</TD><TD>ARC_TBS ... (9 Replies)
Discussion started by: ckwan
9 Replies

8. Shell Programming and Scripting

Need to add letters to a column and add in a new column subtracting from another column

So I have this input 1 10327 rs112750067 T C . PASS DP=65;AF=0.208;CB=BC,NCBI 1 10469 rs117577454 C G . PASS DP=2055;AF=0.020;CB=UM,BC,NCBI 1 10492 rs55998931 C T . PASS DP=231;AF=0.167;CB=BC,NCBI 1 10583 rs58108140 G A ... (3 Replies)
Discussion started by: kellywilliams
3 Replies

9. Shell Programming and Scripting

Match column 3 in file1 to column 1 in file 2 and replace with column 2 from file2

Match column 3 in file1 to column 1 in file 2 and replace with column 2 from file2 file 1 sample SNDK 80004C101 AT XLNX 983919101 BB NETL 64118B100 BS AMD 007903107 CC KLAC 482480100 DC TER 880770102 KATS ATHR 04743P108 KATS... (7 Replies)
Discussion started by: rydz00
7 Replies

10. Shell Programming and Scripting

Parse 1 column and add 2nd column

I'm racking my brain on this one! :( I have a list like this: Paul 20 Paul 25 Paul 30 Frank 10 Julie 15 Julie 13 etc, etc... I've been trying to figure out a way to have the output display the name in the first column ONCE and add the numbers in the second column and display that... (2 Replies)
Discussion started by: sdlennon
2 Replies
WCWIDTH(3)						   BSD Library Functions Manual 						WCWIDTH(3)

NAME
wcwidth -- number of column positions of a wide-character code LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <wchar.h> int wcwidth(wchar_t wc); DESCRIPTION
The wcwidth() function determines the number of column positions required to display the wide character wc. RETURN VALUES
The wcwidth() function returns 0 if the wc argument is a nul wide character (L''), -1 if wc is not printable, otherwise it returns the num- ber of column positions the character occupies. EXAMPLES
This code fragment reads text from standard input and breaks lines that are more than 20 column positions wide, similar to the fold(1) util- ity: wint_t ch; int column, w; column = 0; while ((ch = getwchar()) != WEOF) { w = wcwidth(ch); if (w > 0 && column + w >= 20) { putwchar(L' '); column = 0; } putwchar(ch); if (ch == L' ') column = 0; else if (w > 0) column += w; } SEE ALSO
iswprint(3), wcswidth(3) STANDARDS
The wcwidth() function conforms to IEEE Std 1003.1-2001 (``POSIX.1''). BSD
August 17, 2004 BSD

Featured Tech Videos