Yoda's suggestion looks good except for the way it handles the input and output header lines. You might want to try this slight modification:
Note that the output produced by this script could (except for the header line) have the output lines in random order. If you need the output to be sorted by increasing numeric order of the 1st field, or if you want the output to be in the same order as the input (assuming all lines with the same 1st field value are grouped together as in your sample input), the script would need changed to consistently produce the output order you want.
If you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk or nawk.
Hi, I have a csv file with a key composed by 3 columns and some other numeric fields and I need to obtain the partial amounts by some part of the key. This may be some difficult to understand, so better see an example, where my input file is:
name,surname,department,y2004,y2005,y2006... (6 Replies)
Hi ,
I have .csv file with value separated by ";".
1. Using awk how to extract perticular colums and store in to array
2. For some columns I needs to extract last value of the column
How to do same please help me ASAP
Thanks and Regards,
Sushma (9 Replies)
I have a simple txt files that looks something like this (The title is a part of the text file)
Student Grades
---------------
1 Tim Purser 89
2 John Wayne 56
3 Jenn Hawkins 95
4 Harry Potter 75
Here are my questions:
How would I ONLY print the names of students... (2 Replies)
I'm just wondering is there any way to capture the output of a unix command in a csv format.
df -h gives the result of filesystem,free space,Used space, use %,mounted on.
Is there a way to capture the command output and format it as comma sparated or fixed length file. (3 Replies)
Hello,
How do i manipulate .csv file to this format?
Thank you very much.
Source:
john,5
marco,7
john,4
paul,3
marco,8
Output:
john,9
marco,15 (5 Replies)
Hi,
I am new to awk/unix and am trying to put together a script to manipulate the date column in a csv file.
I have file1.csv with the following contents:
Date,ID,Number,Amount,Volume,Size
01-Apr-2014,WERFG,998,105873.96,10873.96,1342.11
01-Apr-2014,POYFR,267,5681.44,5681.44,462.96
I... (2 Replies)
Hi All,
I have a file like below and i have 2 questions on this (They are 3 lines starts with 01 , 02 and 03. but is
01abc333644554 234 2334535 34534535355353 sfsdf345455
353 4543 jgkg tty 7676
02cdesdfsdfsdf 234 wesdfsdf 345345 234234 234234 2342342 dfgdfg
sdfgg dgdgdg fgvfs... (6 Replies)
Hi Everyone,
I am looking for awk command to retrieve only the record number 23 and record number 89 from a unix file? Please let me know what is the awk command for this?
Regards
Rakesh (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I am looking for awk command to retrieve only the record number 23 and record number 89 from a unix file?... (6 Replies)
Discussion started by: rakeshp
6 Replies
LEARN ABOUT 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 /adm/users | join -t: -a 1 -e "" - bdays
Add birthdays to password information, leaving unknown birthdays empty. The layout of is given in users(6); bdays contains sorted
lines like
tr : ' ' </adm/users | 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
/sys/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)