Hi friends :)
I am having a small problem and ur help is needed...
I have a long file from which i want to select only some portions after filtering (grep).
My file looks like :
header
xxyy
lmno
xxyy
wxyz
footer
header
abcd
xy
pqrs
footer
.
. (14 Replies)
Hi there, I have a text file with several colums separated by "|;#" I need to search the file extracting all columns starting with the value of "1" or "2" saving in a separate file just the first 7 columns of each row maching the criteria, with replacement of the saparators in the nearly created... (4 Replies)
i have a file in following format
1 32 3
4 6 4
4 45 1
45 4 61
54 66 4
5 65 51
56 65 1
12 32 85
now here the total number of lines are 8(they vary each time)
Now i want to select only those lines in which the values... (6 Replies)
I have a text file with 1000 lines, I want to randomly select 200 lines from it and print them as output. How do I go about doing that? Thanks! (7 Replies)
Hello,
I use UBUNTU 12.04.
I want to write a short program using awk to select some lines in a file based on a second file.
My first file has this format with about 400,000 lines and 47 fields:
SNP1 1 12.1
SNP2 1 13.2
SNP3 1 45.2
SNP4 1 23.4
My second file has this format:
SNP2
SNP3... (1 Reply)
Hi
I need to select lines from a txt file, I have got a line starting with ZMIO:MSISDN= and after a few line I have another line starting with 'MOBILE STATION ISDN NUMBER' and another one starting with 'VLR-ADDRESS' I need to copy these three lines as three different columns in a separate... (3 Replies)
Hi Folks,
I have the below feed file named abc1.txt in which you can see there is a title and below is the respective values in the rows and it is completely pipe delimited file ,.
... (3 Replies)
Hi All,
I need to remove all files except the most update data based on date on filename
Input
data_AIDS_20150312.txt
data_AIDS_20150311.txt
data_AIDS_20150411.txt
data_AIDS_20140312.txt
the most updated data is data_AIDS_20150411.txt, so I'll remove other files. My expected output... (3 Replies)
Hi,
I've got a file like this:
22 22:35645163:T:<CN0>:0 0 35645163 T <CN0>
22 rs140738445:20902439:TTTTTTTG:T 0 20902439 T TTTTTTTG
22 rs149602065:40537763:TTTTTTG:T 0 40537763 T TTTTTTG
22 rs71670155:50538408:TTTTTTG:T 0 50538408 T TTTTTTG... (3 Replies)
Discussion started by: zajtat
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)