12-29-2018
Quote:
Originally Posted by
RudiC
Wouldn't a periodical sort -u of the final result file solve those problems in one go at minimal cost? I'd guess searching the entire file for each new IP could become resource hungry.
That depends. In principle: yes, that would suffice - IF the period between runs of
sort -u is sufficiently small to fit thread-O/Ps needs. What exactly "what he needs" is and what therefore "sufficiently small" constitutes is everybodies guess. IF (and again, who knows if this is a moot point or not) there must not be any duplicates in the final file THEN my approach (or something along similar lines) will be necessary. Also, if appending the output file happens without strict regularity the run of the
sort -u might collide with the new entries overwriting them - concurrent access can have that effect. It would need some sort of inter-process communication in this case.
But all that is conjecture. Thread-O/P will have to state his problem more clearly to select the right approach.
I hope this helps.
bakunin
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi Gurus,
I had a question regarding avoiding duplicates.i have a file abc.txt
abc.txt
-------
READER_1_1_1> HIER_28056 XML Reader: Error occurred while parsing:; line number ; column number
READER_1_3_1> Sun Mar 23 23:52:48 2008
READER_1_3_1> HIER_28056 XML Reader: Error occurred while... (7 Replies)
Discussion started by: pssandeep
7 Replies
2. Shell Programming and Scripting
Hi all.
I want to check the free space on a given FS and process the output. Right now, I'm using a temp file to avoid using df twice. This is what I'm doing
#!/usr/bin/ksh
...
df -k $FS_NAME > $TMP_FILE 2>&1
if ]; then
RESULT="CRITICAL - $(cat $TMP_FILE)"
else
cat $TMP_FILE | ...... (3 Replies)
Discussion started by: fox1212
3 Replies
3. HP-UX
Good afternoon.
I am a newbie.
We just had a potentially big problem (negated to having good backups).
Basically, there is an option in SAM, to delete all the data from the system that a user ever created.
Lo and behold, silly me, I choose that option, and all sorts of needed files... (5 Replies)
Discussion started by: instant000
5 Replies
4. Shell Programming and Scripting
Guys
following lines help me in getting numbers from PID column ,to be thrown into first column of a CSV file.
COLUMNS=2047 /usr/bin/ps -eo pid,ppid,uid,user,args | grep -v "PID" > /tmp/masterPID.txt
cat /tmp/masterPID.txt|while read line
do
PID=`echo $line|awk '{print $1}'`
echo "$PID"... (4 Replies)
Discussion started by: ak835
4 Replies
5. Shell Programming and Scripting
Hi Everyone,
# cat a.txt
94,aqqc,62345907,
5,aeec,77,
# cat 1.pl
#!/usr/bin/perl
use strict;
use warnings;
use Date::Manip;
open(my $FA, "/root/a.txt") or die "$!";
while(<$FA>) {
chomp;
my @tmp=split(/\,/, $_);
if (index($tmp, "qq") ne -1) {
... (4 Replies)
Discussion started by: jimmy_y
4 Replies
6. Programming
Hi,
My Code is as below:
nbECRITS = fwrite(strstr(data->buffer, ";") + 1, sizeof(char), (data->buffsize) - LEN_NOM_FIC, fic_sortie);
fclose(fic_sortie);
sprintf(PATH_BALISE, "%s.balise", PATH);
fic_balise_data = fopen(PATH_BALISE, "a+");
if (fic_balise_data == NULL) {... (1 Reply)
Discussion started by: ezee
1 Replies
7. Shell Programming and Scripting
Hi alll
I have a file with following kind input
I want in output duplicates should not be there but there should be numbering mentioned before that like (4 Replies)
Discussion started by: manigrover
4 Replies
8. Shell Programming and Scripting
Hi all
I have a file with following input
It contains 5 columns
gene name drug drug ID disease approved
Now the same gene is repeated many times with different data in column2,3 ,4,5
I want to arrange dat in such a way that there shuld be one entry in the column(no... (2 Replies)
Discussion started by: manigrover
2 Replies
9. Shell Programming and Scripting
Hello,
I am trying to run some code on Matlab over ssh . The code takes around 5-6 hours to complete. so after giving the command to run it , I locked my machine and then went off to sleep at night, only to discover in the morning that I get this message :
...Code running, partial results... (1 Reply)
Discussion started by: ajayram
1 Replies
10. Shell Programming and Scripting
Hello,
I have been working on script in which search and replace the multiple pattern.
1. update_params.sh read the multiple pattern from input file ParamMapping.txt(old_entry|New_entry) and passing this values one by one to change_text.sh
2. change_text.sh read... (0 Replies)
Discussion started by: ketanraut
0 Replies
LEARN ABOUT DEBIAN
fail2ban-regex
FAIL2BAN-REGEX(1) User Commands FAIL2BAN-REGEX(1)
NAME
fail2ban-regex - test Fail2ban "failregex" option
SYNOPSIS
fail2ban-regex [OPTIONS] <LOG> <REGEX> [IGNOREREGEX]
DESCRIPTION
Fail2Ban v0.8.2 reads log file that contains password failure report and bans the corresponding IP addresses using firewall rules.
This tools can test regular expressions for "fail2ban".
OPTIONS
-h, --help
display this help message
-V, --version
print the version
LOG
string a string representing a log line
filename
path to a log file (/var/log/auth.log)
REGEX
string a string representing a 'failregex'
filename
path to a filter file (filter.d/sshd.conf)
IgnoreRegex:
string a string representing an 'ignoreregex'
filename
path to a filter file (filter.d/sshd.conf)
AUTHOR
Written by Cyril Jaquier <cyril.jaquier@fail2ban.org>. Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>.
REPORTING BUGS
Report bugs to <cyril.jaquier@fail2ban.org>
COPYRIGHT
Copyright (C) 2004-2008 Cyril Jaquier
Copyright of modifications held by their respective authors. Licensed under the GNU General Public License v2 (GPL).
SEE ALSO
fail2ban-client(1) fail2ban-server(1)
fail2ban-regex v0.8.2 March 2008 FAIL2BAN-REGEX(1)