Visit Our UNIX and Linux User Community


Search for Ip in last


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Search for Ip in last
# 1  
Old 12-23-2009
Search for Ip in last

I need to grep for for ipaddress in last , the ipaddress could also be with 60.120.123.26

174.20.195.150

Code:
last | awk '{print $3}' | grep [0-9*]

It ain't working
# 2  
Old 12-23-2009
Code:
last | awk '$3 ~ /[0-9.]/ {print $3}'

replace [0-9.] with the regex for ip addr if you want valid ips only

HTH,
PL
# 3  
Old 12-23-2009
Does not work when the server name is like

abc2dev1

---------- Post updated at 12:57 PM ---------- Previous update was at 12:31 PM ----------

Got it
last | awk '$3 ~ /^[0-9.]/ {print $3}'
# 4  
Old 12-23-2009
Is there a need to chk the ip addr regex or is it just to remove the last line thrown by last command.

If the latter is the case then try this

Code:
last | awk '$0 !~ /begins/ {print $3}'


Previous Thread | Next Thread
Test Your Knowledge in Computers #646
Difficulty: Easy
Apple Computer acquired NeXT on February 4, 1997, for $929 million USD.
True or False?

10 More Discussions You Might Find Interesting

1. What is on Your Mind?

YouTube: Search Engine Optimization | How To Fix Soft 404 Errors and A.I. Tales from Google Search

Getting a bit more comfortable making quick YT videos in 4K, here is: Search Engine Optimization | How To Fix Soft 404 Errors and A.I. Tales from Google Search Console https://youtu.be/I6b9T2qcqFo (0 Replies)
Discussion started by: Neo
0 Replies

2. UNIX for Beginners Questions & Answers

How to use a grep search to search for a specific string within multiple directories?

Lets say I have a massive directory which is filled with other directories all filled with different c++ scripts and I want a listing of all the scripts that contain the string: "this string". Is there a way to use a grep search for that? I tried: grep -lr "this string" * but I do not... (3 Replies)
Discussion started by: Circuits
3 Replies

3. What is on Your Mind?

Updated Forum Search Index Min Word Length to 2 Chars and Added Quick Search Bar

Today I changed the forum mysql database to permit 2 letter searches: ft_min_word_len=2 I rebuilt the mysql search indexes as well. Then, I added a "quick search bar" at the top of each page. I have tested this and two letter searches are working; but it's not perfect,... (1 Reply)
Discussion started by: Neo
1 Replies

4. What is on Your Mind?

Search Results (Search, New, and Today's Topics) Animation Switch

Hey, I added an animation switch on the search results page; so by default the thread previews are off, but if you want to look at them, just click on the green button and the thread previews will turn on (and back off). See image and attached animation: ... (1 Reply)
Discussion started by: Neo
1 Replies

5. Shell Programming and Scripting

Search pattern on logfile and search for day/dates and skip duplicate lines if any

Hi, I've written a script to search for an Oracle ORA- error on a log file, print that line and the .trc file associated with it as well as the dateline of when I assumed the error occured. In most it is the first dateline previous to the error. Unfortunately, this is not a fool proof script.... (2 Replies)
Discussion started by: newbie_01
2 Replies

6. Shell Programming and Scripting

Search: find current line, then search back

Hello. I want to find a line that has "new = 0" in it, then search back based on field $4 () in the current line, and find the first line that has field $4 and "last fetch" Grep or Awk preferred. Here is what the data looks like: 2013-12-12 12:10:30,117 TRACE last fetch: Thu Dec 12... (7 Replies)
Discussion started by: JimBurns
7 Replies

7. Shell Programming and Scripting

Perl - start search by using search button or by pressing the enter key

#Build label and text box $main->Label( -text => "Input string below:" )->pack(); $main->Entry( -textvariable => \$text456 )->pack(); $main->Button( -text => "Search", -command => sub { errchk ($text456) ... (4 Replies)
Discussion started by: popeye
4 Replies

8. Shell Programming and Scripting

Perl - use search keywords from array and search a file and print 3rd field when matched

Hi , I have been trying to write a perl script to do this job. But i am not able to achieve the desired result. Below is my code. my $current_value=12345; my @users=("bob","ben","tom","harry"); open DBLIST,"<","/var/tmp/DBinfo"; my @input = <DBLIST>; foreach (@users) { my... (11 Replies)
Discussion started by: chidori
11 Replies

9. UNIX for Advanced & Expert Users

Search files with specfic extention and later search content

Hi, I would appriciate if somebody can help me figure out how to search for all the *.xml file under a specific directory and subdirectroies (/home/username) and later search of content "<start>" inside the xml file returned by search. -Lovin.V (2 Replies)
Discussion started by: lovi_v
2 Replies

10. Shell Programming and Scripting

Perl: Search for string on line then search and replace text

Hi All, I have a file that I need to be able to find a pattern match on a line, search that line for a text pattern, and replace that text. An example of 4 lines in my file is: 1. MatchText_randomNumberOfText moreData ReplaceMe moreData 2. MatchText_randomNumberOfText moreData moreData... (4 Replies)
Discussion started by: Crypto
4 Replies

Featured Tech Videos