Friends,
I have to write a shell script,the description is----
i Have to check the uniqueness of the numbers in a file.
A file is containing 200thousand tickets and a ticket have 15 numbers in asecending order.And there is a strip that is having 6 tickets that means 90 numbers.I... (7 Replies)
Hi,
I am going to fetch a list of numbers that starts with "0032" from a file with a format like the given below:
"
0032459999 0032458888 0032457777
0032451111 0032452222 0032453333
0032459999 0032458888 0032457777
0032451111 0032452222 0032453333
"
I want to get a unique... (6 Replies)
I keep all my files on a NAS device and copy files from it to usb or local storage when needed. The bad part about this is that I often have the same file on numerous places. I'd like to write a script to check if the files in a given directory exist in another.
An example:
say I have a... (7 Replies)
Hello,
I have a file with a 1000 ids in the form of strings. I want to replace each id with a unique numbers in the whole file. each id is repeating in all the columns. I know I can use sed command but there are many ids in file which are need to be converted
example of input file
B752... (4 Replies)
Hi, I have a small piece of awk code (see below) that generates random numbers.
gawk -F"," 'BEGIN { srand(); for (i = 1; i <= 30; i++) printf("%s AM329_%04d\n",$0,int(36 * rand())+1) }' OFS=, AM329_hole_names.csv
The code works fine and generates alphanumeric numbers like AM329_0001,... (2 Replies)
hi
i have used comm -13 <(sort 1.txt) <(sort 2.txt) option to get the unique lines that are present in file 2 but not in file 1. but some how i am getting the entire file 2. i would expect few but not all uncommon lines fro my dat. is there anything wrong with the way i used the command?
my... (1 Reply)
In a incoming folder i have list of files like below,i want to pick the unique files to process the job. if same file contain more than one then it should pick latest date modified file to process.
drwxrwsrwx 2 n308799 infagrp 256 May 20 17:42 Final_Working
drwxrwsrwx 2... (1 Reply)
Hi,
I have a matrix like this:
Algorithm predicted_gene start_point end_point
A x 65 85
B x 70 80
C x 75 85
D x 10 20
B y 125 130
C y 120 140
D y 200 210
Here there are four tab-separated columns. The first column is the used algorithm for prediction, and there are 4 of them A-D.... (8 Replies)
I have some files named file1, file2, fille3......etc. These files are in a folder f1. The content of files are shown below. I would like to count the unique pairs of third column in each file. some files have no data. It should be printed as zero. Your help would be appreciated.
file1
ARG... (1 Reply)
Discussion started by: samra
1 Replies
LEARN ABOUT FREEBSD
join
JOIN(1) BSD General Commands Manual JOIN(1)NAME
join -- relational database operator
SYNOPSIS
join [-a file_number | -v file_number] [-e string] [-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.
-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 either the form file_number.field, where file_number is a file number and field is a field number, or the form '0' (zero), repre-
senting the join field. 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 file1.
-2 field
Join on the field'th field of file2.
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.
EXIT STATUS
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 file1 and file2.
-j1 field
Join on the field'th field of file1.
-j2 field
Join on the field'th field of file2.
-j field
Join on the field'th field of both file1 and file2.
-o list ...
Historical implementations of join permitted multiple arguments to the -o option. These arguments were of the form
file_number.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 do not require modification and should not be used.
SEE ALSO awk(1), comm(1), paste(1), sort(1), uniq(1)STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD July 5, 2004 BSD