Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Replace a numeric values in a certain column Post 303031043 by RavinderSingh13 on Wednesday 20th of February 2019 10:39:43 PM
Old 02-20-2019
Quote:
Originally Posted by arunkumar_mca
Hi All,
..................................
Also on a follow up if I want to replace 008 to 009 . 008 is on the same column 33-35. What should I do
Hello arunkumar_mca,

Position of a character(s) is different from column number.
Example:
Code:
123456a89

In above example if you talk in normal terms then position of a is 7 and it is NOT 7th column in that line.

Now question is when it becomes 7th column, let us think by default field separator is SPACE(I am talking about awk here). So your 7th position will be "called as " 7th field/column when field delimiter of awk is been set to NULL. Which is again a GNU awk function only. So please clear in your statements here.

Thanks,
R. Singh

Last edited by RavinderSingh13; 02-21-2019 at 12:56 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Replace spaces with 0's having numeric values.

What could be the regular expression with gsub function in awk to replace all numerics having spaces before to be replaced with 0s? (1 Reply)
Discussion started by: videsh77
1 Replies

2. UNIX for Advanced & Expert Users

replace a column values with the first value in column

Hi All, I have a file which has data in following format: "Body_Model","2/1/2007","2/1/2007" "CSCH74","0","61" "CSCS74","0","647" "CSCX74","0","3" "CSYH74","0","299" "CSYS74","0","2514" "CSYX74","0","3" "Body_Model","3/1/2007","3/1/2007" "CSCH74","0","88" "CSCS74","0","489"... (3 Replies)
Discussion started by: sumeet
3 Replies

3. Shell Programming and Scripting

replace the column values.

I have the below file ...where some of the column values should replaced with desired values ....below file u can find that 3 column where ever 'AAA' comes should replaced with ' CC ' NOTE : we have to pass the column number ,AAA,CC (modified value) as the parameters to the code. ... (6 Replies)
Discussion started by: charandevu
6 Replies

4. UNIX for Dummies Questions & Answers

Find and Replace random numeric value with non-numeric value

Can someone tell me how to change the first column in a very large 17k line file from a random 10 digit numeric value to a non numeric value. The format of lines in the file is: 1702938475,SNU022,201004 the first 10 numbers always begin with 170 (6 Replies)
Discussion started by: Bahf1s
6 Replies

5. UNIX for Dummies Questions & Answers

Replace values in a specified column of a file

Hello, I have a file with four columns and I would like to replace values in the second column only. An arbitrary example is: 100 A 105 B 200 B 205 C 300 C 305 D 400 D 405 E 500 E 505 F I need to replace the second column as shown below: ... (4 Replies)
Discussion started by: Gussifinknottle
4 Replies

6. UNIX for Dummies Questions & Answers

replace a column with values from another file

Dear all, I have a file1.pdb in pdb format and a dat file2 containing values, corresponding to the atoms in the pdb file. these values (file2.dat) need to be in the column instead of the 0.00 (file1) values for each atom in file1.pdb .(the red values must be replaced by the blue ones,in order)... (11 Replies)
Discussion started by: chen.xiao.po
11 Replies

7. Shell Programming and Scripting

Splitting the numeric vs alpha values in a column to distinct columns

How could i take an input file and split the numeric values from the alpha values (123 vs abc) to distinc columns, and if the source is blank to keep it blank (null) in both of the new columns: So if the source file had a column like: Value: |1 | |2.3| | | |No| I would... (7 Replies)
Discussion started by: driftlogic
7 Replies

8. Shell Programming and Scripting

Replace column values from other file

I have one file as it has the following format File1 S No Site IP Address 1 Australia 192.168.0.1/26 2 Australia 192.168.0.2/26 3 Australia 192.168.0.3/26 I need awk/sed command to replace the column2 value ( under Site) with some other... (8 Replies)
Discussion started by: samaritan
8 Replies

9. UNIX for Dummies Questions & Answers

Replace all decimal values in a column

Hi My input file looks String000002 GeneWise CW 48945 49354 . - 0 Pt=PEQU_00004; String000002 LEN NA 52125 52604 0.945751 - . PID=PEQU_00005;lvid_id=PEQ_28708; String000002 LEN CW 52125 52604 . - 0 ... (3 Replies)
Discussion started by: siya@
3 Replies

10. UNIX for Advanced & Expert Users

Sort by second column numeric values

From googling and reading man pages I figured out this sorts the first column by numeric values. sort -g -k 1,1 Why does the -n option not work? The man pages were a bit confusing. And what if I want to sort the second column numerically? I haven't been able to figure that out. The file... (7 Replies)
Discussion started by: cokedude
7 Replies
PSC(1)							      General Commands Manual							    PSC(1)

NAME
psc - prepare sc files SYNOPSIS
psc [-fLkrSPv] [-s cell] [-R n] [-C n] [-n n] [-d c] DESCRIPTION
Psc is used to prepare data for input to the spreadsheet calculator sc(1). It accepts normal ascii data on standard input. Standard out- put is a sc file. With no options, psc starts the spreadsheet in cell A0. Strings are right justified. All data on a line is entered on the same row; new input lines cause the output row number to increment by one. The default delimiters are tab and space. The column for- mats are set to one larger than the number of columns required to hold the largest value in the column. OPTIONS
-f Omit column width calculations. This option is for preparing data to be merged with an existing spreadsheet. If the option is not specified, the column widths calculated for the data read by psc will override those already set in the existing spreadsheet. -L Left justify strings. -k Keep all delimiters. This option causes the output cell to change on each new delimiter encountered in the input stream. The default action is to condense multiple delimiters to one, so that the cell only changes once per input data item. -r Output the data by row first then column. For input consisting of a single column, this option will result in output of one row with multiple columns instead of a single column spreadsheet. -s cell Start the top left corner of the spreadsheet in cell. For example, -s B33 will arrange the output data so that the spreadsheet starts in column B, row 33. -R n Increment by n on each new output row. -C n Increment by n on each new output column. -n n Output n rows before advancing to the next column. This option is used when the input is arranged in a single column and the spreadsheet is to have multiple columns, each of which is to be length n. -d c Use the single character c as the delimiter between input fields. -P Plain numbers only. A field is a number only when there is no imbedded [-+eE]. -S All numbers are strings. -v Print the version of psc SEE ALSO
sc(1) AUTHOR
Robert Bond PSC 7.16 19 September 2002 PSC(1)
All times are GMT -4. The time now is 02:03 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy