Sponsored Content
Top Forums Shell Programming and Scripting Find columns in a file based on header and print to new file Post 302986423 by Scrutinizer on Friday 25th of November 2016 05:23:56 AM
Old 11-25-2016
Note: The order in for (i in a) is arbitrary, so it cannot be used reliably to preserve order. An alternative would be to use a for(i=min;i<=max;i++) loop..
for example:
Code:
awk 'NR==FNR{A[$1]=++c; next} {s=""; for (i=1; i<=c; i++) {if(FNR==1) P[i]=A[$i]; s=s $(P[i]) OFS} print s}' headers input_file

These 2 Users Gave Thanks to Scrutinizer For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Changing file content based on file header

Hi, I have several text files each containing some data as shown below: File1.txt >DataHeader Data... Data... File2.txt >DataHeader Data... Data... etc. What I want is to change the 'DataHeader' based on the file name. So the output should look like: File1.txt >File1 ... (1 Reply)
Discussion started by: Fahmida
1 Replies

2. Shell Programming and Scripting

Need to find a column from one file and print certain columns in second file

Hi, I need helping in finding some of the text in one file and some columns which have same column in file 1 EG cat file_1 aaaa bbbb cccc dddd eeee fffff gggg hhhh cat file_2 aaaa,abcd,effgh,ereref,name,age,sex,........... bbbb,efdfh,erere,afdafds,name,age,sex.............. (1 Reply)
Discussion started by: jpkumar10
1 Replies

3. Shell Programming and Scripting

Awk based script to find the median of all individual columns in a data file

Hi All, I have some data like below. Step1,Param1,Param2,Param3 1,2,3,4 2,3,4,5 2,4,5,6 3,0,1,2 3,0,0,0 3,2,1,3 ........ so on Where I need to find the median(arithmetic) of each column from Param1...to..Param3 for each set of Step1 values. (Sort each specific column, if the... (5 Replies)
Discussion started by: ks_reddy
5 Replies

4. Shell Programming and Scripting

Remove the file content based on the Header of the file

Hi All, I want to remove the content based on the header information . Please find the example below. File1.txt Name|Last|First|Location|DepId|Depname|DepLoc naga|rr|tion|hyd|1|wer|opr Nava|ra|tin|gen|2|wera|opra I have to search for the DepId and remove the data from the... (5 Replies)
Discussion started by: i150371485
5 Replies

5. Shell Programming and Scripting

awk based script to find the average of all the columns in a data file

Hi All, I need the modification for the below mentioned code (found in one more post https://www.unix.com/shell-programming-scripting/27161-script-generate-average-values.html) to find the average values for all the columns(but for a specific rows) and print the averages side by side. I have... (4 Replies)
Discussion started by: ks_reddy
4 Replies

6. Shell Programming and Scripting

Compare two files and find match and print the header of the second file

Hi, I have two input files; file1 and file2. I compare them based on matched values in 1 column and print selected columns of the second file (file2). I got the result but the header was not printed. i want the header of file2 to be printed together with the result. Then i did below codes:- ... (3 Replies)
Discussion started by: redse171
3 Replies

7. Shell Programming and Scripting

Make copy of text file with columns removed (based on header)

Hello, I have some tab delimited text files with a three header rows. The headers look like, (sorry the tabs look so messy). index group Name input input input input input input input input input input input... (9 Replies)
Discussion started by: LMHmedchem
9 Replies

8. Emergency UNIX and Linux Support

Average columns based on header name

Hi Friends, I have files with columns like this. This sample input below is partial. Please check below for main file link. Each file will have only two rows. ... (8 Replies)
Discussion started by: jacobs.smith
8 Replies

9. Shell Programming and Scripting

Find header in a text file and prepend it to all lines until another header is found

I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty. I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies

10. UNIX for Beginners Questions & Answers

How to print multiple required columns dynamically in a file using the header name?

Hi All, i am trying to print required multiple columns dynamically from a fie. But i am able to print only one column at a time. i am new to shell script, please help me on this issue. i am using below script awk -v COLT=$1 ' NR==1 { for (i=1; i<=NF; i++) { ... (2 Replies)
Discussion started by: balu1234
2 Replies
order(4)                                                           File Formats                                                           order(4)

NAME
order - package installation order description file DESCRIPTION
The package installation order file, .order, is an ASCII file specifying the order in which packages must be installed based on their pre- requisite dependencies. Any package with prerequisite dependencies must be installed after any packages it lists as a prerequisite dependency in its depend file. A .order file is required for the OS product. The .order file must reside in the top-level directory containing the product. The ordering is specified as a list of package identifiers, from the first package to be installed to the last, one package identifier per line. NOTES
The depend file supports incompatible and reverse dependencies. These dependency types are not recognized in the order file. SEE ALSO
cdtoc(4), clustertoc(4), depend(4), packagetoc(4), pkginfo(4) SunOS 5.10 24 Feb 1993 order(4)
All times are GMT -4. The time now is 06:35 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy