Visit Our UNIX and Linux User Community


Append 1st field from a file into 2nd field of another file


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Append 1st field from a file into 2nd field of another file
# 1  
Old 12-25-2010
Append 1st field from a file into 2nd field of another file

Hi,

I've internally searched through forums for about 2+ hours. Unfortunately, with no luck. Although I've found some cases close to mine below, but didn't help so much.

Actually, I'm in short with time. So I had to post my case. Hoping that you can help.

I have 2 files,

FILE1

Code:
23444,
12333,
55578,

FILE2

Code:
8
9
8

I want to

(a) append the filed in FILE2, into 2nf field of FILE1:

Code:
23444, 8
12333, 9
55578, 8

and in other run

(b) append the filed in FILE2, into FILE1 as follows:
Code:
23444,8
12333,9
55578,8

In ADDITION & generally, can you provide me with a solution that:
extracts the "Nth" field from FILE1 into the "Mth" filed in FILE2?


Waiting for your input, with my appreciation in advance.


BR,
Ahmed
# 2  
Old 12-25-2010
You could use paste, but that would leave a space...
Code:
paste -d' ' file1 file2

A general solution would be this:
Code:
awk '{p=$1;getline<f;print p$1}' f=file2 file

or rather,
Code:
awk '{p=$m;getline<f;print p$n}' m=1 n=1 f=file2 file


Last edited by Scrutinizer; 12-25-2010 at 06:21 AM..

Previous Thread | Next Thread
Test Your Knowledge in Computers #147
Difficulty: Easy
Linus Torvalds released the Linux kernel as free software under the GNU General Public License in 1991.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Compare 1st column from 2 file and if match print line from 1st file and append column 7 from 2nd

hi I have 2 file with more than 10 columns for both 1st file apple,0,0,0...... orange,1,2,3..... mango,2,4,5..... 2nd file apple,2,3,4,5,6,7... orange,2,3,4,5,6,8... watermerlon,2,3,4,5,6,abc... mango,5,6,7,4,6,def.... (1 Reply)
Discussion started by: tententen
1 Replies

2. UNIX for Dummies Questions & Answers

Combine Similar Output from the 2nd field w.r.t 1st Field

Hi, For example: I have: HostA,XYZ HostB,XYZ HostC,ABC I would like the output to be: HostA,HostB: XYZ HostC:ABC How can I achieve this? So far what I though of is: (1 Reply)
Discussion started by: alvinoo
1 Replies

3. Shell Programming and Scripting

Command/script to match a field and print the next field of each line in a file.

Hello, I have a text file in the below format: Source Destination State Lag Status CQA02W2K12pl:D:\CAQA ... (10 Replies)
Discussion started by: pocodot
10 Replies

4. Linux

How do I format a Date field of a .CSV file with multiple commas in a string field?

I have a .CSV file (file.csv) whose data are all enclosed in double quotes. Sample format of the file is as below: column1,column2,column3,column4,column5,column6, column7, Column8, Column9, Column10 "12","B000QRIGJ4","4432","string with quotes, and with a comma, and colon: in... (3 Replies)
Discussion started by: dhruuv369
3 Replies

5. Shell Programming and Scripting

Compare two files Field by field and output the result in another file

Hi Friends, Need Help. I have file1.txt as File1.txt |123|A|7267|Hyder|Cross|Sell|7801 |995|A|7051|2008|Lunar|New|Year|Promotion|7801 |996|A|7022|Q108|Targ|Prospect|&|SSCC|Savings|Promo|7801 |997|A|7182|Q1|Feb-Apr|08|Credit|ITA|PA|SBA|Campaign|7801 File2.txt... (7 Replies)
Discussion started by: i150371485
7 Replies

6. Shell Programming and Scripting

Compare a common field in two files and append a column from File 1 in File2

Hi Friends, I am new to Shell Scripting and need your help in the below situation. - I have two files (File 1 and File 2) and the contents of the files are mentioned below. - "Application handle" is the common field in both the files. (NOTE :- PLEASE REFER TO THE ATTACHMENT "Compare files... (2 Replies)
Discussion started by: Santoshbn
2 Replies

7. Shell Programming and Scripting

Appending 1st field in a file into 2nd field in another file

Hi, I've internally searched through forums for about 2+ hours. Unfortunately, with no luck. Although I've found some cases close to mine below, but didn't help so much. Actually, I'm in short with time. So I had to post my case. Hoping that you can help. I have 2 files, FILE1 ... (0 Replies)
Discussion started by: amurib
0 Replies

8. Shell Programming and Scripting

Sort alpha on 1st field, numerical on 2nd field (sci notation)

I want to sort alphabetically on the first field and sort in descending numerical order on the 2nd field. With a normal "sort -r -n" it does this: abc ||| 5e-05 ||| bla abc ||| 3 ||| ble def ||| 1 ||| abc def ||| 0.2 ||| def As you can see it ignores the fact that 5e-05 is actually 0.00005... (1 Reply)
Discussion started by: FrancoisCN
1 Replies

9. Shell Programming and Scripting

Append a field to the end of each line of a file based on searching another file.

Hi All, I have two comma separated value(CSV) files, say FileA and FileB. The contents looks like that shown below. FileA EmpNo,Name,Age,Sex, 1000,ABC,23,M, 1001,DES,24,F, ... (2 Replies)
Discussion started by: ultimate
2 Replies

10. Shell Programming and Scripting

append field to file(nawk)

I have two files. File A and File B. File A has two fields separated by comma 352020252365988, 652020100572356 546876543215667, 652065465654686 ... File B has many Fields separate by spaces Date Name 352020252365988 Reference Date2 Name2 546876543215667 Reference I want to... (4 Replies)
Discussion started by: axl
4 Replies

Featured Tech Videos