CODEWITHSUNDEEP
bashunix
semteu
semteu

Reputation: 2743

How to merge two files line by line in Bash

I have two text files, each of them contains an information by line such like that

file1.txt            file2.txt
----------           ---------
linef11              linef21
linef12              linef22
linef13              linef23
 .                    .
 .                    .
 .                    .

I would like to merge theses files lines by lines using a bash script in order to obtain:

fileresult.txt
--------------
linef11     linef21
linef12     linef22
linef13     linef23
 .           .
 .           .
 .           .

How can this be done in Bash?

Upvotes: 228

Views: 192309

Answers (5)

Manyam Nandeesh Reddy
Manyam Nandeesh Reddy

Reputation: 378

You can use paste with the delimiter option if you want to merge and separate two texts in the file

paste -d "," source_file1 source_file2 > destination_file

Without specifying the delimiter will merge two text files using a Tab delimiter

paste source_file1 source_file2 > destination_file

Upvotes: 7

vtha
vtha

Reputation: 587

Try following. 

pr -tmJ a.txt b.txt > c.txt

Upvotes: 16

ghostdog74
ghostdog74

Reputation: 342313

here's non-paste methods

awk

awk 'BEGIN {OFS=" "}{
  getline line < "file2"
  print $0,line
} ' file1

Bash

exec 6<"file2"
while read -r line
do
    read -r f2line <&6
    echo "${line}${f2line}"
done <"file1"
exec 6<&-

Upvotes: 25

Christopher Creutzig
Christopher Creutzig

Reputation: 8774

Check

man paste

possible followed by some command like untabify or tabs2spaces

Upvotes: 10

Mark Byers
Mark Byers

Reputation: 838066

You can use paste:

paste file1.txt file2.txt > fileresults.txt

Upvotes: 356

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