Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Merge two files into one file

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Merge two files into one file
# 1  
Old 01-19-2012
Merge two files into one file
Hi, I need help with merging two files. My requirement is as below:
File 1:
Code:
MachineA
MachineB

File 2:
Code:
Process1
Process2
Desired File:
MachineA Process1
MachineB Process2

If file 2 contains only one entry Process1, then second line in the desired output should be:
MachineA Process1
MachineB


Thanks..

---------- Post updated at 11:24 PM ---------- Previous update was at 11:09 PM ----------

Found 'paste' command delivers what I am looking for. Thanks!
Last edited by Franklin52; 01-19-2012 at 03:54 AM.. Reason: Code tags
# 2  
Old 01-19-2012
Hi,

You could try this :
Code:
y=1
while read line
do
   r=`sed -n "$y p" file2`
   sed -i "$y s/$/$r/" file1
   y=`expr $y + 1`
done < file1

I used below input :
Code:
File 1 :                                        File 2 :
MachineA                                     Process1
MachineB                                     
MachineC                                     Process2

Below is output :
Code:
MachineAProcess1
MachineB
MachineCProcess2

It holds good for the scenario u have mentioned also. Hope this helps.
If the file sizes are large then you could use awk instead of sed i believe.

Regards,
RM
Last edited by Franklin52; 01-19-2012 at 03:54 AM.. Reason: Please use code tags for code and data samples, thank you
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Merge different files into the original file

Hello Below is my requirement I have 3 files A1.txt , A2.txt and A3.txt . A2 is dynamically generating file I want the merge of A1,A2 and A3 in A2.txt Could you please help? (3 Replies)
Discussion started by: Pratik4891
3 Replies

2. Shell Programming and Scripting

Merge the multiple text files into one file

Hi All, I am trying to merge all the text files into one file using below snippet cat /home/Temp/Test/Log/*.txt >> all.txt But it seems it is not working. I have multiple files like Output_ServerName1.txt, Output_ServreName2.txt I want to merge each file into one single file and... (6 Replies)
Discussion started by: sharsour
6 Replies

3. UNIX for Dummies Questions & Answers

How to merge two files into third file?

Hi All, i have a requirement as below. There are two files. In 1st file a.txt i have four lines as below Ramesh Suresh Pradeep Franklin In 2nd file b.txt i have 5 lines as below Francis Elizabeth David John Ravi The output file suppose c.txt should contain 1st line of... (5 Replies)
Discussion started by: sureshk_85
5 Replies

4. UNIX for Dummies Questions & Answers

Merge files with file names added

I want to merge several files with identical format: file 1: rs3094315 0.0006105222804 0.9528743638 rs3131972 -0.05461465109 0.3139864854 rs3115860 -0.06041530955 0.3195499498 file 2: rs2073813 -0.06039552152 0.2956527097 rs11564776 -0.1864266568 ... (4 Replies)
Discussion started by: luoruicd
4 Replies

5. UNIX for Dummies Questions & Answers

merge files along with file names (awk)?

Dear programmers, I have a question about conditionally merging multiple files and having their file names in the first column. Input files: file.1.extension file.2.extension file.3.extension file.4.extension ... file.1000.extension where each file looks like this (with multiple lines):... (5 Replies)
Discussion started by: wei.deng
5 Replies

6. Programming

Merge files from /etc to one file using C

Hi guys, I have a question which might be easy to answer but I don't how to do it. The thing is I need to make a program in C which creates a file with all the content from the files in \etc. I'm not new to C language but to UNIX. I've read somewhere I need to use functions like f_read... (2 Replies)
Discussion started by: sussil
2 Replies

7. Shell Programming and Scripting

Merge 3 files in 1 file in an ordered way

Hi, I have a question that I cannot solve. if I have a file like this (lets say "x-values.dat"): x1 x2 x3 another file like this (lets say "y-values.dat"): y1 y2 y3 y4 and another file like this (lets say "p-values.dat"): p1 p2 p3 ... p12 How can I get this output? x1 y1 p1 x1 y2... (16 Replies)
Discussion started by: lego
16 Replies

8. Shell Programming and Scripting

merge two files into one file use awk

Hi, guys. I have one question: I have two files: passwd and shadow (the number of records in these files are not equal)the contents of them are below: passwd: ************** ftp:x:24:24: sshd:x:71:65: uucp:x:10:14: brownj:x:5005:1000: sherrys: x :5006:1000: ... ************* ... (2 Replies)
Discussion started by: daikeyang
2 Replies

9. Shell Programming and Scripting

Merge two files whose names are given in other file

Hi, I have a pointer file ptr.txt. There may be any number of files mentioned in the ptr.txt file eg: cat ptr.txt /home/abc.txt /home/pqr.txt /home/xyz.txt I have to read this pointer file and merge the files given in the pointer file so that final file say... (1 Reply)
Discussion started by: harshada
1 Replies

10. Shell Programming and Scripting

merge two files in one file

All, I've basic knowlege on understanding UNIX Shell Programming. Right now I need to write a script for the following requirement. Kindly help me or suggest me how to write a Shell script. I've 8 .csv files that are containing "Detail" records. Each file getting more than 1 million. Another... (3 Replies)
Discussion started by: nvkuriseti
3 Replies
Login or Register to Ask a Question