With input files so big, it's more efficient to use join:
If the input files were not sorted, sort first before joining. The long list of fields after -o is to get rid of the trailing '|' from f1, otherwise, the whole -o... can be omitted.
Greetings, all. I've got a project that requires I join two data files together, then do some processing and output. Everything must be done in a shell script, using standard unix tools. The files look like the following:
File_1
Layout:
Acct#,Subacct#,Descrip
Sample:
... (3 Replies)
Hi,
Whats the unix function to join multiple files? is it cat?
so I have multiple files in the same format and I want to join then by row
eg.
FILE1
1 3
1 3
1 3
1 3
FILE2
2 4
2 4
2 4 (1 Reply)
I have this log file which I need to count the number of repeated line and do some manipulation.
test.log:
June 3 03:33:38 test 1
June 3 10:31:22 test 2
June 3 10:32:22 test 2
June 3 10:33:22 test 3
June 3 10:33:22 test 3
June 3 10:34:22 test 4
June 3 10:35:22 test 5
... (4 Replies)
Hi guys,
I have three files which needs to be joined to a single file.
File 1:
Col a, Col b, Col c
File 2:
Col 1a, Col 1b
File 3:
Col 2a, Col 2b
Output:
Col 1a, Col 2a, Col a, Col b, Col c.
All the files are comma delimited. I need to join Col b with Col 1b and need to... (17 Replies)
Hi experts,
I'm quite newbie here!!
I have two seperate files. Contents of file like below
File 1:
6213019212001 8063737
File:2
15703784
I want to join these two files into one where content will be
File 3:
6213019212001 8063737 15703784
Regards,
Ray Seilden (1 Reply)
Hi,
I have about 20 tab delimited text files that have non sequential numbering such as:
UCD2.summary.txt
UCD45.summary.txt
UCD56.summery.txt
The first column of each file has the same number of lines and content. The next 2 column have data points:
i.e UCD2.summary.txt:
a 8.9 ... (8 Replies)
I have two files with the below contents :
sampleoutput3.txt
20150202;hostname1
20150223;hostname2
20150716;hostname3
sampleoutput1.txt
hostname;packages_out_of_date;errata_out_of_date;
hostname1;11;0;
hostnamea;12;0;
hostnameb;11;0;
hostnamec;95;38;
hostnamed;440;358;... (2 Replies)
Discussion started by: rahul2662
2 Replies
LEARN ABOUT BSD
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [ options ] 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.
-jn m Join on the mth field of file n. If n is missing, use the mth field in each file.
-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)