Hi and welcome to the forum.
Try to break your problem down into simpler sub-tasks. E.g: you want the top 10 counts, so it would make sense to sort your input files first:
will do a numeric (-n) sort descending (reverse -r) on second field (-k2,2). Now to find the top 10, you just need to look at the first 10 lines.
So I'd approach this with feeding the sorted files into awk:
Now to pull the maximum of the top 10 from each input, you could do something like:
output.txt should now contain something like:
(in random order, since 'for(i in cnt)' doesn't sort anything).
I don't quite understand what do you mean by
Quote:
they need to be picked from file2 and file3
or what is your desired output. But if you take it one small step at a time, you're gonna eventually get there.
E.g. you could read the lines from output.txt and grep for the name in the input files to get the other values:
etc.
Approaching the problem in this step-by-step fashion, it's much easier to debug -- you can verify the intermediate results easily.
Give it a shot and let us know how it goes!
I've been working with an awk script and I'm wondeing id it's possible to count records in a file which DO NOT contain, in this instance fields 12 and 13.
With the one script I am wanting to display the count for the records WITH fields 12 and 13 and a seperate count of records WITHOUT fields... (2 Replies)
I need "awk solution" for simple counting!
File looks like:
STUDENT GRADE
student1 A
student2 A
student3 B
student4 A
student5 B
Desired Output:
GRADE No.of Students
A 3
B 2
Thanks for awking! (4 Replies)
Hi, I am having the following number in the file tmp
31013.004
20675.336
43318.190
30512.926
48992.559
277893.111
41831.330
8749.113
415980.576
28273.054
I want to add these numbers, I am using following script
awk 'END{print s}{s += $1}' tmp
its giving answer 947239 which is correct,... (3 Replies)
I have a list of URLs and I want to be able to count the number of instances of addresses ending in a certain TLD and output and sort it like so.
5 bdcc.com
48 zrtzr.com
49 rvo.com
Input is as so
ync.org
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu... (1 Reply)
ok, so a user can specify options as is shown below:
ExA:
cpu.pl!23!25!-allow
or
ExB:
cpu.pl!23!25!-block!all
options are delimited by the exclamation mark.
now, in example A, there are 4 options provided by the user.
in example B, there are 5 options provided by the user.
... (3 Replies)
Probably a simple to this, but unsure how to do it. I would prefer an AWK solution. Below is the data set.
1 2 3
2 5 7
4 6 9
1 5 4
8 5 7
1 1 10
15 3 12
3 7 9
9 8 10
4 5 2
9 1 10
4 7 9
7 12 6
9 13 8
For the second... (11 Replies)
Hi,
I have two text files (1.txt and 2.txt).
2.txt contains two columns which are extracted from 1.txt using a simple if(condition) print.
I want to:
- count how many times the values contained in 2.txt appear in 1.txt
-if they appear just one time, I have to delete the entire row in... (5 Replies)
I want to count lines of a file using AWK (only) and not in the END part like this awk 'END{print FNR}' because I want to use it.
Does anyone know of a way?
Thanks a lot. (7 Replies)
Hi!!
I am trying to write a program which allows me to count how many times I used the same word in a text:
{$0 = tolower ($0)
gsub (/_]/, "", $0)
for (i = 1; i <= NF; i++)
freq++
}
END {
for (word in freq)
printf "%s\t%d\n", word, freq
It seems work but... (3 Replies)
Discussion started by: ettore8888
3 Replies
LEARN ABOUT NETBSD
join
JOIN(1) BSD General Commands Manual JOIN(1)NAME
join -- relational database operator
SYNOPSIS
join [-a file_number | -v file_number] [-e string] [-j file_number field] [-o list] [-t char] [-1 field] [-2 field] file1 file2
DESCRIPTION
The join utility performs an ``equality join'' on the specified files and writes the result to the standard output. The ``join field'' is
the field in each file by which the files are compared. The first field in each line is used by default. There is one line in the output
for each pair of lines in file1 and file2 which have identical join fields. Each output line consists of the join field, the remaining
fields from file1 and then the remaining fields from file2.
The default field separators are tab and space characters. In this case, multiple tabs and spaces count as a single field separator, and
leading tabs and spaces are ignored. The default output field separator is a single space character.
Many of the options use file and field numbers. Both file numbers and field numbers are 1 based, i.e. the first file on the command line is
file number 1 and the first field is field number 1. The following options are available:
-a file_number
In addition to the default output, produce a line for each unpairable line in file file_number. (The argument to -a must not be
preceded by a space; see the COMPATIBILITY section.)
-e string Replace empty output fields with string.
-o list The -o option specifies the fields that will be output from each file for each line with matching join fields. Each element of
list has the form 'file_number.field', where file_number is a file number and field is a field number. The elements of list must
be either comma (``,'') or whitespace separated. (The latter requires quoting to protect it from the shell, or, a simpler
approach is to use multiple -o options.)
-t char Use character char as a field delimiter for both input and output. Every occurrence of char in a line is significant.
-v file_number
Do not display the default output, but display a line for each unpairable line in file file_number. The options -v 1 and -v 2
may be specified at the same time.
-1 field Join on the field'th field of file 1.
-2 field Join on the field'th field of file 2.
When the default field delimiter characters are used, the files to be joined should be ordered in the collating sequence of sort(1), using
the -b option, on the fields on which they are to be joined, otherwise join may not report all field matches. When the field delimiter char-
acters are specified by the -t option, the collating sequence should be the same as sort(1) without the -b option.
If one of the arguments file1 or file2 is ``-'', the standard input is used.
The join utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
For compatibility with historic versions of join, the following options are available:
-a In addition to the default output, produce a line for each unpairable line in both file 1 and file 2. (To distinguish between
this and -a file_number, join currently requires that the latter not include any white space.)
-j1 field Join on the field'th field of file 1.
-j2 field Join on the field'th field of file 2.
-j field Join on the field'th field of both file 1 and file 2.
-o list ...
Historical implementations of join permitted multiple arguments to the -o option. These arguments were of the form ``file_num-
ber.field_number'' as described for the current -o option. This has obvious difficulties in the presence of files named ``1.2''.
These options are available only so historic shell scripts don't require modification and should not be used.
SEE ALSO awk(1), comm(1), paste(1), sort(1), uniq(1)STANDARDS
The join command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD April 28, 1995 BSD