Sponsored Content
Top Forums Shell Programming and Scripting Delete first column in tab-delimited text-file Post 302297301 by andmal on Friday 13th of March 2009 04:21:18 AM
Old 03-13-2009
Delete first column in tab-delimited text-file

I have a large text-file with tab-delimited genetic data that looks like:

KSC112 KSC234 0 0 1 1 A G C T

I simply wan to delete the first column, but since the file has 600 000 columns, it is not possible with awk (seems to be limited at 32k columns).

Does anyone have an idea how to do this?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Delete parts of a string of character in one given column of a tab delimited file

I would like to remove characters from column 7 so that from an input file looking like this: >HWI-EAS422_12:4:1:69:89 GGTTTAAATATTGCACAAAAGGTATAGAGCGT U0 1 0 0 ref_chr8.fa 6527777 F DD I get something like that in an output file: ... (13 Replies)
Discussion started by: matlavmac
13 Replies

2. UNIX for Dummies Questions & Answers

How do you delete cells from a space delimited text file given row and column number?

How do you delete cells from a space delimited text file given row and column number? Letś say the row number is r and the column number is c. Thanks! (5 Replies)
Discussion started by: evelibertine
5 Replies

3. UNIX for Dummies Questions & Answers

Add a new column to a tab delimited text file

I want to add a new column to a tab delimited text file. It will be the first column and it will just be 1's. How do I go about doing that? Thanks! (1 Reply)
Discussion started by: evelibertine
1 Replies

4. UNIX for Dummies Questions & Answers

Using awk to log transform a column in a tab-delimited text file?

How do I use awk to log transform the fifth column of a tab-delimited text file? Thanks! (1 Reply)
Discussion started by: evelibertine
1 Replies

5. Shell Programming and Scripting

Extract second column tab delimited file

I have a file which looks like this: 73450 articles and news developmental psychology 2006-03-30 16:22:40 1 http://www.usnews.com 73450 articles and news developmental psychology 2006-03-30 16:22:40 2 http://www.apa.org 73450 articles and news developmental psychology 2006-03-30... (1 Reply)
Discussion started by: shoaibjameel123
1 Replies

6. Shell Programming and Scripting

Convert a 3 column tab delimited file to a matrix

Hi all, I have a 3 columns input file like this: CPLX9PC-4943 CPLX9PC-4943 1 CPLX9PC-4943 CpxID123 0 CPLX9PC-4943 CpxID126 0 CPLX9PC-4943 CPLX9PC-5763 0.5 CPLX9PC-4943 CpxID13 0 CPLX9PC-4943 CPLX9PC-6163 0 CPLX9PC-4943 CPLX9PC-6164 0.04... (7 Replies)
Discussion started by: AshwaniSharma09
7 Replies

7. Shell Programming and Scripting

Delete an entire column from a tab delimited file

Hi, Can anyone please tell me about how we can delete an entire column from a tab delimited file? Mu input_file.txt looks like this: And I want the output as: I used the below code nawk -v d="1" 'BEGIN{FS=OFS="\t"}{$d=""}{print}' input_file.txtBut in the output, the first column is... (5 Replies)
Discussion started by: sampoorna
5 Replies

8. Shell Programming and Scripting

Delete and insert columns in a tab delimited file

Hi all , I have a file having 12 columns tab delimited . I need to read this file and remove the column 3 and column 4 and insert a word in column 3 as "AVIALABLE " Is there a way to do this . I am trying like below Thanks DJ cat $FILENAME|awk -F"\t" '{ print $1 "\t... (3 Replies)
Discussion started by: Hypesslearner
3 Replies

9. UNIX for Dummies Questions & Answers

Need to convert a pipe delimited text file to tab delimited

Hi, I have a rquirement in unix as below . I have a text file with me seperated by | symbol and i need to generate a excel file through unix commands/script so that each value will go to each column. ex: Input Text file: 1|A|apple 2|B|bottle excel file to be generated as output as... (9 Replies)
Discussion started by: raja kakitapall
9 Replies

10. UNIX for Beginners Questions & Answers

Replace a column in tab delimited file with column in other tab delimited file,based on match

Hello Everyone.. I want to replace the retail col from FileI with cstp1 col from FileP if the strpno matches in both files FileP.txt ... (2 Replies)
Discussion started by: YogeshG
2 Replies
PR(1)							      General Commands Manual							     PR(1)

NAME
pr - print file SYNOPSIS
pr [ option ... ] [ file ... ] DESCRIPTION
Pr produces a printed listing of one or more files on its standard output. The output is separated into pages headed by a date, the name of the file or a specified header, and the page number. With no file arguments, pr prints its standard input. Options apply to all following files but may be reset between files: -n Produce n-column output. +n Begin printing with page n. -b Balance columns on last page, in case of multi-column output. -d Double space. -en Set the tab stops for input text every n spaces. -h Take the next argument as a page header (file by default). -in Replace sequences of blanks in the output by tabs, using tab stops set every n spaces. -f Use formfeeds to separate pages. -ln Take the length of the page to be n lines instead of the default 66. -m Print all files simultaneously, each in one column. -n Number the lines of each file. -on Offset the left margin n character positions. -sc Separate columns by the single character c instead of aligning them with white space. A missing c is taken to be a tab. -t Do not print the 5-line header or the 5-line trailer normally supplied for each page. -wn For multi-column output, take the width of the page to be n characters instead of the default 72. SOURCE
/sys/src/cmd/pr.c SEE ALSO
cat(1), lp(1) PR(1)
All times are GMT -4. The time now is 04:15 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy