I am searching some rather large text files using grep and or awk.
What I would like to know is if there is a way (either with grep, awk, or realy any other unix tool) to stop the search when a predifined number of results are returned.
I would like to do this for speed purpuses. When i get... (6 Replies)
Hi,
I have a question here that need to get advise from all of you. Let say I have a set of data
12347777
12359899
12347677
12360090
12347688
12359979
12359009
12367022
12346677
I need to count the number that appear in each numbering ranges and the output is like below:
Prefix ... (5 Replies)
I want to display "no results found" if a grep search of a name that the user inputs is not found anywhere in a certain file,
Right now I have this, but doesn't seem to work. Im not sure what to change.
read name
results=grep -c $name file
if ;
then echo "No results found."
exit... (1 Reply)
I have a file with contents similar to this.
abcd
1234
4567
7666
jdjdjd
89289
9382
92
jksdj
9823
298
I want to write a shell script which count the number of lines that start with the number (disregard the lines starting with alphabets) (1 Reply)
Hi guys
i must write a program which read logfile of my program and print the result.
i wrote this and i want print of the user who have virus.
i extract user and put it in file, now i want know each user have how many virus.
how can i do this in bash, my file is like:
and soso
i... (5 Replies)
Hi experts a have a very large file and I need to add two columns: the first one numbering the incidence of records and the another with the total count
The input file:
21 2341 A
21 2341 A
21 2341 A
21 2341 C
21 2341 C
21 2341 C
21 2341 C
21 4567 A
21 4567 A
21 4567 C
... (6 Replies)
Hi All,
I need to get the count of records in the file, if the passing parameter matches with the list of records in the file. Below is my example
source file: Test1.dat
20120913
20120913
20120912
20120912
20120912
20120912
20120912
20120913
20120913
20120912
In my script I am... (5 Replies)
Hello,
I try to sort results of occurences in an array by using awk but I can't find the right command. that's why I'm asking your help ! :)
Please see below the command that I run:
awk '{ for ( i=1; i<=length; i++ ) arr++ }END{ for ( i in arr ) { print i, arr } }' dictionnary.txt
... (3 Replies)
Hi
I wanted to know if there is an option in grep command to show the number of results (not the number of lines of findings).
Thanks (14 Replies)
Discussion started by: abdossamad2003
14 Replies
LEARN ABOUT BSD
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 file1 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.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-jn m Join on the mth field of file n. If n is missing, use the mth field in each file.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO sort(1), comm(1), awk(1)BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)