Hi,
I want to delete a line in a file that contains a string. I tried:
grep -v "mystring" Myfile > Myfile
But this makes the Myfile empty. I read that I need to do something like:
grep -v "mystring" Myfile > Myfile.new
rm Myfile
mv Myfile.new Myfile
Is there a way to avoid creating a... (2 Replies)
Hi to all,
I have a file where the subject could contain "Summarized Availability Report" or only "Summarized Report"
If the subject is "Summarized Availability Report" I want to apply it Scrip1 and if the subject is "Summarized Report"
I want to apply it Scrip2.
1-) I would like you... (5 Replies)
Hi Guys,
I have folder where the logs are generated (which is quite a few). I want to keep the recent n logs and delete the rest of them..
I am able to sort them by using ls -t.. but how to take it forward..
Can you people help me..
Thanks for the help in advance,
Regards,... (3 Replies)
Hi all,
I have a file that looks like this:
uid=bessemsj
version: 1
dn: cn=Desk SpecialAdminDesk, ou=Desks, dc=DSS,c=nl,o=Vodafone
dn: cn=DSS Advisors, ou=Groups, dc=DSS,c=nl,o=Vodafone
dn: cn=DSS Dispatcher,ou=Groups,dc=DSS,c=nl,o=Vodafone
dn: cn=Desk Retention Desk,ou=Desks,... (13 Replies)
Hi all
if i want to get the 3 lines of the most repeated lines here
tony,1,x
tony,1,x
tony,2,x
tony,2,x
tony,3,x
tony,4,x
tony,5,x
adam,1,y
to get output
tony,1,x
tony,2,x
tony3,x
adam,1,y (3 Replies)
Hi all,
I've been trying to write a script to compare two files. This is what I want:
file 1:
a 1 2
b 5 9
c 4 7
file 2:
a
a
c
a
b
Output:
a 1 2
a 1 2 (2 Replies)
Hi, users file contains below names i have a requirement to keep only one case sensitive user. For e.g if user name is "aaa" then only aaa should be there in the file and other matching users(AAA,aaA) should be deleted.
Tried multiple options but no luck can you please help.
aaa
abc
AAA... (2 Replies)
Dears
i want to extract lines only that have first entry repeated 3 times or above , ex data :
-bash-3.00$ cat INTCONT-IS.CSV
M205-00-106_AMDRN:1-0-6-22,12-662-4833,intContact,2016-11-15 02:32:16,50
M205-00-106_AMDRN:1-0-23-17,12-616-0462,intContact,2016-11-15 02:32:23,50... (5 Replies)
Remove duplicate lines which has been repeated 4 times attached test.txt
below command tried and not getting expect output.
for i in `cat test.txt | uniq`
do
num=`cat test.txt | grep $i | wc -l`
echo $i $num
done
test.txt
... (17 Replies)
Discussion started by: Kalia
17 Replies
LEARN ABOUT NETBSD
uniq
UNIQ(1) BSD General Commands Manual UNIQ(1)NAME
uniq -- report or filter out repeated lines in a file
SYNOPSIS
uniq [-cdu] [-f fields] [-s chars] [input_file [output_file]]
DESCRIPTION
The uniq utility reads the standard input comparing adjacent lines, and writes a copy of each unique input line to the standard output. The
second and succeeding copies of identical adjacent input lines are not written. Repeated lines in the input will not be detected if they are
not adjacent, so it may be necessary to sort the files first.
The following options are available:
-c Precede each output line with the count of the number of times the line occurred in the input, followed by a single space.
-d Don't output lines that are not repeated in the input.
-f fields
Ignore the first fields in each input line when doing comparisons. A field is a string of non-blank characters separated from adja-
cent fields by blanks. Field numbers are one based, i.e. the first field is field one.
-s chars
Ignore the first chars characters in each input line when doing comparisons. If specified in conjunction with the -f option, the
first chars characters after the first fields fields will be ignored. Character numbers are one based, i.e. the first character is
character one.
-u Don't output lines that are repeated in the input.
If additional arguments are specified on the command line, the first such argument is used as the name of an input file, the second is used
as the name of an output file.
The uniq utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
The historic +number and -number options have been deprecated but are still supported in this implementation.
SEE ALSO sort(1)STANDARDS
The uniq utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD January 6, 2007 BSD