actually, it seems somewhat confusing.. let me clearify it
i want a file having all the attributes produced by ls -lc command. i want to add one more thing i.e. time of last access to a file attribute. so how can i merge these two things in a single file in a columnar way.
i tried with these... (2 Replies)
Hello
Please help me to write Shell script.
I want to merge 2 data files . The data files have common columns
The data file A have 3 columns
Host Version Numberof Failuers
The data file B have also 3 coulmns
Host Version NumberofFailuers .
I want to merge A and B file... (2 Replies)
Hi All,
I want to merge two lines in a file till the end of the file. So what could be the command to get so.
say file name : sample.txt
contents:
country=1
send apps =1 rece=2
country=2
send apps =3 rece=3
..
...
output:
country=1;send apps =1 rece=2
country=2;send apps =3... (6 Replies)
Hi,
I want to merge the lines starting with a comma symbol with the previous line of the file.
Input :
cat file.txt
name1,name2
,name3,name4
emp1,emp2,emp3
,emp4
,emp5
user1,user2
,user3
Output
name1,name2,name3,name4
emp1,emp2,emp3,emp4,emp5 (9 Replies)
Hi All:
I have following files:
File 1:
<header>
text...
text ..
text ..
text ..
<\header>
x
y
z
...
File 2:
<header>
text...
text ..
text .. (4 Replies)
hello,
I have a file which has the following structure:
word <TAB> frequency
The same word can have multiple frequencies:
John <TAB> 60
John <TAB> 20
John <TAB> 30
Mary <TAB> 1000
Mary <TAB> 800
Mary <TAB> 20
What I need is a script which could merge all these frequencies into one single... (10 Replies)
Hello,
Firstly I just wanted to say that I'm not a programmer at all and appreciate any help you can give. I am trying to create a shellscript that reformats the file and adding up colums 5 and 6 for those sections that are continuation of the previous line(s) (signified by beginning with '*')... (4 Replies)
Dear All, I have two file like this:
file1:
a1234
b1235
c4678
d7859
file2 :
e4575
f7869
g7689
h9687
I want output like this:
a1234
b1235
c4678 (2 Replies)
Hi I need to merge 4 files. The issue i am facing is all the files have headers and i do not want them in the final output file. Can anybody suggest how to do it? (5 Replies)
Hello,
I have a file with few lines starting with a digit (1-5 only ) followed by a dot (.). Remaining all the lines to be merged with its previous numbered lines. Merging must be done with a space.
E.g.,
Source file:
3. abc def
xyz
5. pqr mno
def
4. jkl uvw
7. ghi
1. abc xyz
6. mno... (4 Replies)
Discussion started by: magnus29
4 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)