what do i do if i want to sort these contacts by their birthdays in ascending order (Jan. to Dec.)? And i want only to display their name and birthday?
Your requirements don't specify whether you want to sort by year first, but only by month. So this one liner should meet that requirement:
i want sort columns with headers based on another file headers
file1
eg: i'm having an empty file with only coumn names like
lastname firstname title expirydate stlcno status etc...
another file with same column names and some other as well but in different order...
file2
eg:firstname... (2 Replies)
Hi ,
I have a dump of .csv files in a folder, I need to sort all files by the first 3 columns and merge them all in one big csv file.
I am using a cat command to join them, but how can i sort before appending all the files as one big file,
Regards,
Shruthi (4 Replies)
Hello,
I am facing the following problem:
I have a file in csv format. So several records where data fields are separated by comma ','
The lenght of the fields is variable, as well as the number of fields per record. But there are at least 7 fields per record.
I need to sort the file based... (1 Reply)
I have the following csv data that I would like to sort on the 4th field by date
from oldest to newest.
data:
,,,02/06/2012,Carry H,Add,Add,Sys_RTH,111.222.333.777
4/7/12,,,03/03/2013,Parry H,Add,Add,Sys_RTH,111.222.333.776
,,,12/06/2012,Harry H,Add,Add,Sys_RTH,111.222.333.778... (3 Replies)
hello, I have a large file (about 1gb) that is in a file similar to the following:
I want to make it so that I can put all the duplicates where column 3 (delimited by the commas) are shown on top. Meaning all people with the same age are listed at the top.
The command I used was ... (3 Replies)
I have a CSV with below values
name,city,2,country
name,city,15,country
abc,wq,10,afdfd,
qeqe,ewqre,1,wqew
I need to sort them in ascending order based on the value of column 3 and then , pick the rows with values less than 10 and be able to display the columns in that row. Can anyone... (11 Replies)
I have to sort the 4th column of an excel/csv file. I tried the following command
sort -u --field-separator=, --numeric-sort -k 2 -n dinesh.csv > test.csv
But, it's not working. Moreover, I have to do the same for more than 30 excel/csv file. So please help me to do the same. (6 Replies)
I have a csv file as shown below,
xop_thy 80 avr_njk 50 str_nyu 60
avr_irt 70 str_nhj 60 avr_ngt 50
str_tgt 80 xop_nmg 50 xop_nth 40
cyv_gty 40 cop_thl 40 vir_tyk 80
vir_plo 20 vir_thk 40 ijk_yuc 70
cop_thy 70 ijk_yuc 80 irt_hgt 80
I need to align/sort the csv file based... (7 Replies)
Discussion started by: dineshkumarsrk
7 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)