<div>
grep &quot;123.123.123.123&quot; /var/log/syslog
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<div>
Yes I had tried that but this is the results<br />
sudo less grep &quot;xxx.xxx.xxx&quot;/var/log/sysl<wbr />og<br />
[sudo] password for mmmmm:<br />
grep: No such file or directory<br />
xxx.xxx.xxx/var/log/syslog<wbr />: No such file or directory<br />
<br />
Then it continues on to the whole log file
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Yes I had tried that but this is the results
sudo less grep "xxx.xxx.xxx"/var/log/syslog
[sudo] password for mmmmm:
grep: No such file or directory
xxx.xxx.xxx/var/log/syslog: No such file or directory

Then it continues on to the whole log file

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Try it this way:<br />
<br />
sudo sh -c &quot;grep xxx.xxx.xxx /var/log/syslog | less &quot;
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Try it this way:

sudo sh -c "grep xxx.xxx.xxx /var/log/syslog | less "

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sudo should not be necessary. Syslog files are generally world-readable.<br />
<br />
Leave a space between &quot;123.123.123.123&quot; and the filename.<br />
<br />
And for the &quot;less&quot; thing - <i>gt2847c</i>'s suggestion is correct.
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sudo should not be necessary. Syslog files are generally world-readable.

Leave a space between "123.123.123.123" and the filename.

And for the "less" thing - gt2847c's suggestion is correct.

<div>
<div class="content wysiwyg-content">
Hi Experts<br />
I am trying to track down an IP address on a unix DNS server using /var/log/syslog. However overwhelmed with data. I know very little of unix but I remember the Grep command as the &quot;search&quot; command. What would the command line be to pull the desired IP from this log?<br />
<br />
Thanks in advance<br />
D. arno
</div>
</div>


Hi Experts
I am trying to track down an IP address on a unix DNS server using /var/log/syslog. However overwhelmed with data. I know very little of unix but I remember the Grep command as the "search" command. What would the command line be to pull the desired IP from this log?

Thanks in advance
D. arno

Need command to search syslogs

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

The variety of Linux distributions creates myriad issues relating to configuration and operations when computers are networked, not the least of which is the use of various network management applications, some of which are included with specific distributions, while others are standalone applications.