Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: regex question
Top Forums UNIX for Dummies Questions & Answers regex question Post 47487 by rocketkids on Wednesday 11th of February 2004 12:26:08 PM
Old 02-11-2004
hi oombera,
thank you very much for your effort.
the scripts are working, but they dont do anything...as i said, im new to programming...

maybe it helps when i try to tell what i want to do:

i get the IPs from the wtmp with my script (which should be looped so that every 5 seconds the wtmp log is searched through), then i have for example 20 different IPs.
lets say one of them is 195.100.0.0.
every time my script gives me that IP (because the user with that IP logged on or off and gets logged in the wtmp) i want a part of a text to be sent to the bash.
its kind of a feedback system...so my bash gets bits of text mapped onto the ips....

i hope it got a lil bit more clear this time...excuse me, i really have got problems to put my ideas into words...lol
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

regex question

I have a simple file test.out that contains data in the form of key1=A|shift1 key2=B|shift2 key3=C|shift3 and so on. I need to get it to print A B C I can do it using lookbehind assertion such as this ( ?<==)() yet I was wondering if there is another way of mutching single... (8 Replies)
Discussion started by: arushunter
8 Replies

2. Shell Programming and Scripting

regex question

Hi I have a question on regex There is a line in a script like my_file="$(echo SunMonTueWed | sed "s//_&g") " My question what does the expression _&g do. Obviously in this example the output is _Sun_Mon_Tue_Wed Another question can i use some trick to get the result like... (3 Replies)
Discussion started by: xiamin
3 Replies

3. Shell Programming and Scripting

regex question

Hi, im sure this is really simple but i cant quite figure it out. how do i test against a word at the beginning of the line but up to the point of a delimiter i.e. ":" for example if i wanted to test against the user in the /etc/passwd file peter:x:101:100:peters account:/var/peter:/bin/sh ... (3 Replies)
Discussion started by: hcclnoodles
3 Replies

4. Shell Programming and Scripting

Question on regex with * and .

I have a basic question regarding * and . while using regex: # echo 3 | grep ^*$ 3 I think I understood why it outputs "3" here (because '*' matches zero or more of the previous character) but I don't understand the output of the following command: # echo 3 | grep ^.$ # I thought I... (7 Replies)
Discussion started by: mirage
7 Replies

5. UNIX for Dummies Questions & Answers

regex question

I have dates in mm/dd/yy format that I wish to convert to yy-mm-dd format. ()/()/() finds them, but when I try to replace with $3-$1-$2 both kate and kwrite treat it as a text literal. (2 Replies)
Discussion started by: porphyry5
2 Replies

6. Shell Programming and Scripting

RegEX question

Hi, I am trying to write a regex for myscript and need some input from experts. here is what I must grep for TICKET{Sapce}{Space}{hyphen} so here is the example data TICKET 34554, CT-12345, TICKET 12345: some text here TICKET 2342, CT-12345, MA-12344: some text here TICKET... (5 Replies)
Discussion started by: rider29
5 Replies

7. Shell Programming and Scripting

regex question

Hi guys, I have a file in the following format: cmpr5551 cmpr6002 cmpr93 anne 5454 bbro 434 cmprsvc cmprsvc7 ffgi55 vefe99 cmprsvc8 cmprsvc9 I need to "grep" only the entries which start with "cmpr" followed by the number. All other entries should be excluded. I was trying to use... (3 Replies)
Discussion started by: aoussenko
3 Replies

8. Shell Programming and Scripting

regex question

Hi guys, I am trying to "grep" or "egrep" the following entry out of the file using regex: MACCDB1 or MACCDB2 The problem is that the file might contain other entries which start with "MACCDB" string. I was trying to use regex to "grep" the exact pattern but it fails to output the correct... (2 Replies)
Discussion started by: aoussenko
2 Replies

9. Shell Programming and Scripting

Regex Question

Hi I am trying to match lines having following string BIND dn="uid= putting something like this is not working : /\sBIND dn="uid=/ Any suggestion. Thanks. John (9 Replies)
Discussion started by: john_prince
9 Replies

10. Shell Programming and Scripting

Regex question

I want to match all occurrence of 01,03,05,07,10,11 at 9th and 10th position of a string . I tried the following but its also matching characters like 33 or 11 on 9th and 10th position . sed "/^\{8\}00/d" A.TXT 000000001000 433483433339 <<< wrong 121121211100 <<< wrong 167710000110... (10 Replies)
Discussion started by: boncuk
10 Replies

LEARN ABOUT BSD

ac

AC(8)							      System Manager's Manual							     AC(8)

NAME

       ac - login accounting

SYNOPSIS

       /usr/sbin/ac [ -w wtmp ] [ -p ] [ -d ] [ people ] ...

DESCRIPTION

       Ac  produces a printout giving connect time for each user who has logged in during the life of the current wtmp file.  A total is also pro-
       duced.  -w is used to specify an alternate wtmp file.  -p prints individual totals; without this  option,  only	totals	are  printed.	-d
       causes  a printout for each midnight to midnight period.  Any people will limit the printout to only the specified login names.	If no wtmp
       file is given, /usr/adm/wtmp is used.

       The accounting file /usr/adm/wtmp is maintained by init and login.  Neither of these programs creates the file, so if it does not exist	no
       connect-time  accounting  is  done.  To start accounting, it should be created with length 0.  On the other hand if the file is left undis-
       turbed it will grow without bound, so periodically any information desired should be collected and the file truncated.

FILES

       /usr/adm/wtmp

SEE ALSO

       init(8), sa(8), login(1), utmp(5).

4th Berkeley Distribution					 November 16, 1996							     AC(8)
All times are GMT -4. The time now is 02:04 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy