[SOLVED] Script to concatenate 2 files with the same number of lines

gacanepa · 07-25-2013, 05:02 PM

Hi everyone,
I have two files, namely:
file1:

Code:

file1Col1Row1;file1Col2Row1;file1Col3Row1
file1Col1Row2;file1Col2Row2;file1Col3Row2
file1Col1Row3;file1Col2Row3;file1Col3Row3

file2:

Code:

file2Col1Row1;file2Col2Row1;file2Col3Row1
file2Col1Row2;file2Col2Row2;file2Col3Row2
file2Col1Row3;file2Col2Row3;file2Col3Row3

I need to concatenate both files line by line so that the output will be:

Code:

file1Col1Row1;file1Col2Row1;file1Col3Row1;file2Col1Row1;file2Col2Row1;file2Col3Row1
file1Col1Row2;file1Col2Row2;file1Col3Row2;file2Col1Row2;file2Col2Row2;file2Col3Row2
file1Col1Row3;file1Col2Row3;file1Col3Row3;file2Col1Row3;file2Col2Row3;file2Col3Row3

The only way I can think of is using 2 nested [ICODE]while[/ICODE] loops that read from each file and output to another file, but I don't know if there's a more efficient way?
Any ideas will be more than welcome. Thanks in advance.

schneidz · 07-25-2013, 05:09 PM

man paste

gacanepa · 07-25-2013, 05:16 PM

Quote:

Originally Posted by schneidz

man paste

That worked like a charm! I knew there had to be a more efficient way than using the nested while loops.

Code:

gacanepa@Gabriel-PC ~/stuff/scripts/bash $ cat file1
file1Col1Row1;file1Col2Row1;file1Col3Row1
file1Col1Row2;file1Col2Row2;file1Col3Row2
file1Col1Row3;file1Col2Row3;file1Col3Row3
gacanepa@Gabriel-PC ~/stuff/scripts/bash $ cat file2
file2Col1Row1;file2Col2Row1;file2Col3Row1
file2Col1Row2;file2Col2Row2;file2Col3Row2
file2Col1Row3;file2Col2Row3;file2Col3Row3
gacanepa@Gabriel-PC ~/stuff/scripts/bash $ paste -d";" file1 file2
file1Col1Row1;file1Col2Row1;file1Col3Row1;file2Col1Row1;file2Col2Row1;file2Col3Row1
file1Col1Row2;file1Col2Row2;file1Col3Row2;file2Col1Row2;file2Col2Row2;file2Col3Row2
file1Col1Row3;file1Col2Row3;file1Col3Row3;file2Col1Row3;file2Col2Row3;file2Col3Row3