Just a quick note - you can run Don's awk script inside the vi/vim editor.
Essentially, you can run any command of the OS on which your vi/vim editor was installed.
"%" ==> set the entire file as the range on which the awk command will run
"!" ==> run the command of the underlying OS.
"awk 'f[$0]++ == 0' ==> the actual OS command; the "input_file" isn't required here
Once you hit Enter, your duplicate data will be removed within the editor window itself. You can then simply save it. This obviates the need for the temp file.
If you're in the editor to make other changes to the file anyway, this is a great idea. But, it doesn't get rid of the need for a temp file; it just has vi create the temp file instead of the user creating it explicitly. In fact, there is a good chance that vi (or vim) will create another temp file or two to process the input and output for awk.
Hi
I need a perl onliner which seaches a line starting with a pattern(last occurence) and display it.
similar to
grep 'pattern' filename | tail -1 in UNIX
Ex: I want to display the line starting with "cool" and which is a last occurence
adadfadafadf
adfadadf
cool dfadfadfadfara... (4 Replies)
Hi,
I have file 1.txt with following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433
**
**
**
In file 2.txt I have the following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433... (4 Replies)
I have a file that will sometimes contain a pattern. The pattern is this:
W/D FRM CHK 00
I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below. (1 Reply)
I have a file that will sometimes contain a pattern. The pattern is this:
FRM CHK 0000
I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below. (4 Replies)
hi all
i want to delete a line upto a particular character. here is example.
cp cms/images/wifi-zone.png
i want to delete the line till . (cp cms/images/wifi-zone.) so the output wud be "png" only
how can i do it?
also please note down that dot (.) can also occur multiple... (12 Replies)
Hi
I have to replace a pattern found in the first uncommented line in a file. The challenge I'm facing is there are several such similar lines but I have to edit only the first uncommented line.
Eg:
#this is example
#/root/xyz:Old_Pattern
/root/xyz:Old_Pattern
/root/xyz:Old_Pattern
... (10 Replies)
here is what i want to achieve.. i have a file with below contents
cat fileName
blah blah blah
.
.DROP this
REJECT that
.
--sport 7800 -j REJECT --reject-with icmp-port-unreachable
--dport 7800 -j REJECT --reject-with icmp-port-unreachable
.
.
.
more blah blah blah
--dport 3306... (14 Replies)
Hi,
I have a simple problem but i guess stupid enough to figure it out. i have thousands rows of data. and i need to find match patterns of two columns and print the number of rows. for example:
inputfile
abd abp 123
abc abc 325
ndc ndc 451
mjk lkj... (3 Replies)
Hello,
Environment:
I am under Ubuntu 18.04 bionic. I have an sql file consisting of 10K lines.
Objective:
What I am trying to attain is to remove everything coming after 2nd tab in each line. While searching for the answer, I found two answers and both gave expected result just for the first... (2 Replies)
Hello.
Here is a file contents :
declare -Ax NEW_FORCE_IGNORE_ARRAY=(="§" ="§" ="§" ="§" ="§" .................. ="§"Here is a pattern
=I want to extract 'NEW_FORCE_IGNORE_ARRAY' which is the whole word before the first occurrence of pattern '='
Is there a better solution than mine :... (3 Replies)
Discussion started by: jcdole
3 Replies
LEARN ABOUT DEBIAN
apsfilter-bug
APSFILTER-BUG(1) BSD General Commands Manual APSFILTER-BUG(1)NAME
apsfilter-bug -- create a half-automatic bug report for apsfilter
SYNOPSIS
apsfilter-bug
OPTIONS
none
DESCRIPTION
With the apsfilter-bug script you can automatically create a bug report for apsfilter(1). A template report file is created which you can
edit with your favourite editor ( emacs(1) by default, or whatever is entered in the environment variable EDITOR ).
You will see a couple of lines starting with '#'; these lines will be removed before the report is sent. So if you want to use the '#' char-
acter at the beginning of a line, just indent it with a space.
A very important piece of the bug report is the debugging log created by aps2file(1), probably with a command like
aps2file -D -o /dev/null [-P...] [-Z...] [input] 2> log.txt
Unless you don't even have a chance to create a debugging log, it is crucial for serious bug hunting.
After you have filled in as much (useful) information as possible, you must save the file under its original name, then exit your editor.
If you invoked apsfilter-bug by accident, or if you need some additional system information to include into the bug report, just exit your
editor without saving the file.
NOTES
In addition to the stuff you've edited, some more information is appended to the bug report automatically:
apsfilter version 7.2.6-stable
ghostscript version (from 'gs --version')
system id (from 'uname -a')
configure options --prefix=/usr --sysconfdir=/etc --mandir=/usr/share/man --with-awk=/usr/bin/awk --with-sendmail=/usr/sbin/sendmail
shell executable /bin/bash
awk executable /usr/bin/awk
sendmail executable /usr/sbin/sendmail
FILES
/usr/bin/aps2file script to create debugging output
SEE ALSO apsfilter(1), aps2file(1)BUGS
See apsfilter software center - http://www.apsfilter.org/ - for new versions, bugfixes and known bugs.
Please use the new tool apsfilter-bug(1) to release bug- or problem reports. It automatically presents you a form in an editor window which
asks you some standard questions. If you save and quit the editor session, then this report is sent automatically via e-mail to the proper
apsfilter mailinglist.
If apsfilter fails to print something or prints it in a way you wouldn't expect and you want to report an apsfilter error then please save
the debugging output of one print session using the new aps2file(1) utility by typing aps2file -D -Z options file > /dev/null 2> file.debug
and including the debugging output in the file file.debug into the edit session of the apsfilter-bug utility, so that it is included into the
mail to the apsfilter mailinglist.
Please note that you need to run /bin/sh (Bourne Shell), bash or a compatible shell, so that the above mentioned output redirection works.
Under C-shell (/bin/csh) or tcsh it would't work. If you don't know, then simply make sure you use the Bournce shell by typing /bin/sh or
bash, then you should have no problems with redirection of stdout and stderr (> /dev/null 2> file.debug).
DOCUMENTATION
See official apsfilter homepage
http://www.apsfilter.org/handbook.html Apsfilter Handbook including the Frequently Asked Questions (FAQ)
USER FORUM
Please send questions to the official apsfilter help channel apsfilter-help@apsfilter.org. The above section BUGS and the file
HOWTO-BUGREPORTS tells you how to report bugs. If you want to know how to troubleshoot your apsfilter installation, please read the manpage
aps2file(1) and apsfilter-bug(1) as well as the Apsfilter Handbook carefully.
HISTORY
The apsfilter-bug manpage has been written by Michael LoBin <phallobst@web.de> and first appeared in apsfilter V 7.1.0.
BSD Dec 26, 2001 BSD