Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Extract columns from multiple files with a file name as heading Post 302549845 by Unilearn on Wednesday 24th of August 2011 05:33:50 AM
Old 08-24-2011
Question Extract columns from multiple files with a file name as heading

Hi All,

I have 7 files, each containing 9 columns separated by space. I want to extract the 9th columns from every file and save in a new file. The columns must be pasted next to each other. And the title of each columns should be the name of the corresponding files! Since the 3rd column is common to all files, I can extract it in a new file and join with the output.

Ex. file1

sl core name conc dilu fill rate type final
34 12 sn1 21 0.45 56 76 0.44 0.009
23 45 sn2 87 12 45 67 87 0.08


file2
sl core name conc dilu fill rate type final
45 67 sn1 45 78 34 19 56 0.09
34 62 sn2 12 78 89 43 16 0.006

output
name file1 file2
sn1 0.009 0.09
sn2 0.08 0.006

I greatly appreciate your help.
Thanks!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Merging columns from multiple files in one file

Hi, I want to select columns from multiple files and combine them in one file. The files are simulation-data-files with 23 columns each and about 50 rows. I now use: cut -f 11 Sweep?wing-30?scale=0.?0?fan2?.txt | pr -3 | awk '{printf("\n%s\t%s\t%s",$1,$2,$3)}' > ../Data_Processed/output.txtI... (1 Reply)
Discussion started by: isgoed
1 Replies

2. Shell Programming and Scripting

extract columns from 2 different files and create new file

Hi All, I have 2 issues while working with file. 1. I have 2 delimited(~) files. I want to extract column numbner 3 from file1 and column number 8 from file2 and paste it into file3. I have tried using cut, but not able to get answer. 2. i have 2 filxed-width file. I wanted to do same... (1 Reply)
Discussion started by: Amit.Sagpariya
1 Replies

3. Shell Programming and Scripting

need help with post:extract multiple columns from multiple files

hello, I will would be grateful if anyone can help me reply to my post extract multiple cloumns from multiple files; skip rows and include filenames; awk Please see this thread. Thanks manishabh (0 Replies)
Discussion started by: manishabh
0 Replies

4. Shell Programming and Scripting

Combining columns from multiple files to one file

I'm trying to combine colums from multiple file to a single file but having some issues, appreciate your help. The filenames are the same except for the extension, path1.m0 --------- a b c d e f g h i path1.m1 --------- m n o p q r s t u File names are path1.m The... (3 Replies)
Discussion started by: rkmca
3 Replies

5. UNIX for Dummies Questions & Answers

Splitting up a text file into multiple files by columns

Hi, I have a space delimited text file with multiple columns 102 columns. I want to break it up into 100 files labelled 1.txt through 100.txt (n.txt). Each text file will contain the first two columns and in addition the nth column (that corresponds to n.txt). The third file will contain the... (1 Reply)
Discussion started by: evelibertine
1 Replies

6. Shell Programming and Scripting

Combining columns from multiple files into one single output file

Hi, I have 3 files with one column value as shown File: a.txt ------------ Data_a1 Data_a2 File2: b.txt ------------ Data_b1 Data_b2 Data_b3 Data_b4 File3: c.txt ------------ Data_c1 Data_c2 Data_c3 Data_c4 Data_c5 (6 Replies)
Discussion started by: vfrg
6 Replies

7. Shell Programming and Scripting

Difference between 2 files, one with 1 column and 2nd file with multiple columns

Hi, I need to find the difference between 2 files in unix and write the result in the new file File1: A B File2: X 123 hajkd Y 345 adjfka A 123 djafjhd B 678 dsndjks Output file: X 123 hajkd Y 345 adjfka Thanks. (6 Replies)
Discussion started by: nani1984
6 Replies

8. Shell Programming and Scripting

Compare 2 csv files by columns, then extract certain columns of matcing rows

Hi all, I'm pretty much a newbie to UNIX. I would appreciate any help with UNIX coding on comparing two large csv files (greater than 10 GB in size), and output a file with matching columns. I want to compare file1 and file2 by 'id' and 'chain' columns, then extract exact matching rows'... (5 Replies)
Discussion started by: bkane3
5 Replies

9. Shell Programming and Scripting

Combining certain columns of multiple files into one file

Hello Unix gurus, I have a large number of files (say X) each containing two columns of data and the same number of rows. I would like to combine these files to create a unique merged file containing X columns corresponding to the second column of each file (with a bonus of having the first... (3 Replies)
Discussion started by: ksennin
3 Replies

10. UNIX for Beginners Questions & Answers

Split into multiple files by using Unique columns in a UNIX file

I have requirement to split below file (sample.csv) into multiple files by using the unique columns (first 3 are unique columns) sample.csv 123|22|56789|ABCDEF|12AB34|2019-07-10|2019-07-10|443.3400|1|1 123|12|5679|BCDEFG|34CD56|2019-07-10|2019-07-10|896.7200|1|2... (3 Replies)
Discussion started by: RVSP
3 Replies
COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME
column -- columnate lists SYNOPSIS
column [-tx] [-c columns] [-s sep] [file ...] DESCRIPTION
The column utility formats its input into multiple columns. Rows are filled before columns. Input is taken from file operands, or, by default, from the standard input. Empty lines are ignored. The options are as follows: -c Output is formatted for a display columns wide. -s Specify a set of characters to be used to delimit columns for the -t option. -t Determine the number of columns the input contains and create a table. Columns are delimited with whitespace, by default, or with the characters supplied using the -s option. Useful for pretty-printing displays. -x Fill columns before filling rows. column exits 0 on success, >0 if an error occurred. ENVIRONMENT
COLUMNS The environment variable COLUMNS is used to determine the size of the screen if no other information is available. EXAMPLES
(echo "PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME"; ls -l | sed 1d) | column -t SEE ALSO
colrm(1), ls(1), paste(1), sort(1) HISTORY
The column command appeared in 4.3BSD-Reno. BSD
March 9, 2008 BSD
All times are GMT -4. The time now is 11:29 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy