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Top Forums UNIX for Dummies Questions & Answers Filter lines common in two files Post 302830467 by gokcell on Tuesday 9th of July 2013 01:42:10 AM
Old 07-09-2013
Paste is one of the easy solution

Parse all of your required line to different file with awk and then join all of your file with the paste command. With the paste command you can use any kind of seperator also. In this example i used semicolon.

Paste command usage:

paste -d ";" file1 file2 file3 .....

Code:
[goksel@gokcell cozum]$ cat >file1
1001   23.5  -6.45  3.2  14.68
1002   48.2  -35.6  8.5  21.67
1003   -5.6   23.6   3.5  3.56
^Z
[1]+  Stopped                 cat > file1
[goksel@gokcell cozum]$ cat >file2
1001   C   16   US
1002   D    32   US
1004   E    13   US
^Z
[2]+  Stopped                 cat > file2
[goksel@gokcell cozum]$ cat file1
1001   23.5  -6.45  3.2  14.68
1002   48.2  -35.6  8.5  21.67
1003   -5.6   23.6   3.5  3.56

cat file1 | awk '{print $1}' >f1l1
cat file1 | awk '{print $2}' >f1l2
cat file1 | awk '{print $3}' >f1l3
cat file2 | awk '{print $3}' >f2l3

paste -d ";" f1l1 f1l2 f1l3 f2l3 >result

cat result 
1001;23.5;-6.45;16
1002;48.2;-35.6;32
1003;-5.6;23.6;13

Regards,
Goksel Yangin
Computer Engineer

Moderator's Comments:
Mod Comment edit by bakunin: repaired some broken CODE-tags.

Last edited by bakunin; 07-10-2013 at 06:02 AM..
This User Gave Thanks to gokcell For This Post:
 

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JOIN(1) 						      General Commands Manual							   JOIN(1)

NAME
join - relational database operator SYNOPSIS
join [-an] [-e s] [-o list] [-tc] file1 file2 DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard input is used. File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in each line. There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con- sists of the common field, then the rest of the line from file1, then the rest of the line from file2. Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis- carded. These options are recognized: -an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2. -e s Replace empty output fields by string s. -o list Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a field number. -tc Use character c as a separator (tab character). Every appearance of c in a line is significant. SEE ALSO
sort(1), comm(1), awk(1). BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort. The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous. 7th Edition April 29, 1985 JOIN(1)
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