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awayand

Member

Registered: 2009-09-25

Posts: 398

[SOLVED] merging two text files

I have one text file with the following content:

a
b
c
d

I have another text file with the following content:

A
B
C
D

How can I merge these two, such that the result is:

aA
bB
cC
dD

I could just open up excel and copy-paste, but that seems inelegant. I have both files open using gvim, but I am stumped as to how to go about this from there...

Any pointers would be highly appreciated!

Last edited by awayand (2012-01-04 07:20:35)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,334

Re: [SOLVED] merging two text files

man join

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skunktrader

Member

From: Brisbane, Australia

Registered: 2010-02-14

Posts: 1,584

Re: [SOLVED] merging two text files

man join

edit: too slow

Last edited by skunktrader (2012-01-04 07:14:40)

awayand

Member

Registered: 2009-09-25

Posts: 398

Re: [SOLVED] merging two text files

sweet! thanks!

headkase

Member

Registered: 2011-12-06

Posts: 1,983

Re: [SOLVED] merging two text files

In Python (named combine.py):

import sys


file1 = sys.argv[1]
file2 = sys.argv[2]
outfile = sys.argv[3]

f1 = open(file1,'r')
f2 = open(file2,'r')

lines1 = f1.readlines()
lines2 = f2.readlines()

f1.close()
f2.close()

outlines = zip(lines1, lines2)

of = open(outfile,'w')
for line in outlines:
    of.write((line[0].strip('\n'))+(line[1].strip('\n'))+"\n")
of.close()

Usage:

python2 combine.py inputfile1 inputfile2 outputfile

zorro

Member

Registered: 2011-11-18

Posts: 47

Re: [SOLVED] merging two text files

I would have suggested

paste -d# file_1 file_2 | sed s/#//

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [SOLVED] merging two text files

I would have suggested

paste -d# file_1 file_2 | sed s/#//

paste -d "" file_1 file_2

is enough.