Hi guys,
I need some help to come out with a solution . I have seven such files but I am showing only three for convenience.
filea
a5 20
a8 16
fileb
a3 42
a7 14
filec
a5 23
a3 07
The output file shoud contain the data in table form showing first field of... (7 Replies)
Hello,
I have two files that I need to compare and print out the line from file2 that has the first 6 fields matching the first 6 fields in file1. Complicating this are the following restrictions
1. file1 is only a few thousand lines at most and file2 is greater than 2 million
2. I need to... (7 Replies)
I have to files
File1
1 23
2 34
3 7
4 56
5 61
6 22
7 65
File2
2 21
4 32
7 22
Now i need to compare column1 of both the files and generate a third file which should contain all the values of 1st column of 1st file and in the second column i need to get the coressponding row... (2 Replies)
Hello. I have two files. FILE1 was extracted from FILE2 and modified thanks to help from this post. Now I need to replace the extracted, modified lines into the original file (FILE2) to produce the FILE3.
FILE1
1466 55.27433 14.72050 -2.52E+03 3.00E-01 1.05E+04 2.57E+04
1467 55.27433... (1 Reply)
Hi friends,
I have multiple files. For now, let's say I have two of the following style
cat 1.txt
cat 2.txt
output.txt
Please note that my files are not sorted and in the output file I need another extra column that says the file from which it is coming. I have more than 100... (19 Replies)
Good morning all,
I have a problem that is one step beyond a standard awk compare.
I would like to compare three files which have several thousand records against a fourth file. All of them have a value in each row that is identical, and one value in each of those rows which may be duplicated... (1 Reply)
Hi,
I want to compare two columns from file1 with another two column of file2 and print matched and unmatched column like this
File1
1 rs1 abc
3 rs4 xyz
1 rs3 stu
File2
1 kkk rs1 AA 10
1 aaa rs2 DD 20
1 ccc ... (2 Replies)
I want to print only the lines in file2 that match file1, in the same order as they appear in file 1
file1
file2
desired output:
I'm getting the lines to match
awk 'FNR==NR {a++}; FNR!=NR && a' file1 file2
but they are in sorted order, which is not what I want:
Can anyone... (4 Replies)
I have requirement to split below file (sample.csv) into multiple files by using the unique columns (first 3 are unique columns)
sample.csv
123|22|56789|ABCDEF|12AB34|2019-07-10|2019-07-10|443.3400|1|1
123|12|5679|BCDEFG|34CD56|2019-07-10|2019-07-10|896.7200|1|2... (3 Replies)
Discussion started by: RVSP
3 Replies
LEARN ABOUT DEBIAN
plan9-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 one of the file names 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.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/src/cmd/join.c
SEE ALSO sort(1), comm(1), awk(1)BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)