I have a master list of hosts, and a list of bad hosts. I want to filter out the bad hosts from the master list. I was trying a few for loops but it's not providing the desired result:
I know I did this a few months ago w/ ease and for the life of me I can't remember how I did it. Thanks in advance.
Well it's been a long time since I have used any OS besides apples and windows (raising my son). My principal would like our teachers to use UNIX as their mail system. That's not a problem, the mail system is like riding a bike you never forget. Here's my problem. She wants me to write a script... (2 Replies)
I am trying to run awk on a 55 page Word document.
I wanted to delete every occurrence of <company>, <script>, </scripts> from the file then cut & paste all of the appropriate fields to an Excel spreadsheet.
Also the code is suppose to replace the dates in a new format such as "xxxx-xx-xx" ... (2 Replies)
hi, I know we can do this; but dont know how..
I open a file using vim..browse thru it and then say :wq after reaching some line;
The next time I open the same file, I want vim to position the cursor on the line where I left last time;
anyone? (2 Replies)
I have a simple script. I have tried this in Bourne, Korn and C shells in my AIX ...no luck
unset STARTQUEUE
# Check parameters
if
then
echo "*E* Batch Queue parameter is missing"
else
$BATCHQ/bin/setup.sh
STARTQUEUE=$1
# If the queue doesn't exist, create it
... (3 Replies)
Discussion started by: KenL
3 Replies
5. Forum Support Area for Unregistered Users & Account Problems
Hi All,
Have only recently returned to Unix.com due to other activities (*oh the shame of it all).
Anyways, when I initially came back to redesigned/revamped site I couldn't remember any of my logins. I'd originally thought that I'd used the UID of 'Cameron' but couldn't remember any details... (2 Replies)
Hello dear community!
I have the following task to accomplish: there is a directory with approximately 2 thousand files. I have to write a script which would randomly extract 200 files on the first run. On the second run it should extract again 200 files but that files mustn't intersect with... (5 Replies)
It showed a cleaning woman (probably in the evening, after most of the other employees had left work) happily typing commands on a dot matrix terminal (could've been a DEC LA120, IIRC) just because "unix is so easy to use, even a cleaning woman can use it!".
If you know where to find a scanned... (2 Replies)
Discussion started by: mathiasbage
2 Replies
8. Post Here to Contact Site Administrators and Moderators
Howdy,
I clicked the rememberer me when I log in, and evidently I really do not understand what that means. I had hoped that at least it would remember my user name for the next time that I log in. However, when I log out, I see a message about cookies being removed and one other thing that I... (1 Reply)
Hi all,
I'm new to UNIX world and new to this forum. As I observed there are lot of commands that needs to be remembered in UNIX programming. I'm into DevOps and can anyone please tell me what are all the important commands that are useful for DevOps Engineer.
NOTE: Please correct me if my... (3 Replies)
Discussion started by: maxlink
3 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