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How to find files In Linux

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In this article i will explain you to how to find files in Linux.


Find at current location
# find  . -name abc.txt   

Find file name case insensitively
# find / -iname abc.txt   

Find the file in / .
# find / -name *.txt       

Find the file where 'pass' in /etc
# find /etc -name *pass*   


Find the file in /data created by macho
# find / -user macho       

Find the file in /data which is not created by macho
# find / -not -user macho   

Find the file with uid of 500
# find / -user macho -uid 500   

Matches if mode is exactly 755
# find / -perm 755       

Matches if anyone can write
# find / -perm +222       

Matches if everyone can write
# find / -perm -222       

Matches if other can write
# find / -perm -002          

Files with a size of exactly 10M
# find / -size 10M       

Files with a size of above 10M
# find / -size +10M       

Files with a size of less than 10M
# find / -size -10M       

When file was last read (min)
# find / -amin 10       

When file d…

A free tool to analyze AIX and Linux performance

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One of the tools I use to monitor performance on IBM AIX 5.3 and Linux is NMON. Using nmon, you can monitor CPU, memory, network, disk, filesystems, NFS and Top Processes.



Install Nmon

CentOS users need to install nmon from rpmforge/repoforge repository. It is not present in Epel.

CentOs 4 :
i386     rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el4.rf.i386.rpm

x86_64   rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el4.rf.x86_64.rpm

CentOs5 :
i386     rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.i386.rpm

x86_64   rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.x86_64.rpm

CnetOs6 :
i686     rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.i686.rpm

x86_64   rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm


sudo yum install nmon
sudo apt-get install nmon

Usage :

$ nmon
And…

Audit Your Linux Security With Lynis

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Installation :

CentOs/Fedora
yum install lynis

Ubuntu :
apt-get install lynis

Install from source :
Create Directory
mkdir /usr/local/lynis

cd /usr/local/lynis
wget http://cisofy.com/files/lynis-1.3.9.tar.gz
tar -xvf lynis-1.3.9.tar.gz

cd lynis-1.3.9.
./lynis

Usage :
lynis -c
































































































Thanks,
Vishal Vyas

For More : http://www.rootkit.nl/

GoAccess a Real time Web Server Log Analyzer

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Installation :


# yum install ncurses-devel glib2-devel GeoIP*
# cd /opt
# wget http://sourceforge.net/projects/goaccess/files/0.5/goaccess-0.5.tar.gz/download
# tar zxvf goaccess-0.5.tar.gz
# cd goaccess-0.5
# ./configure
#  make
# make install


To generate full statistics we can run GoAccess as:
 # goaccess -f /var/log/httpd/access_log -a














Select a log format and press F10















To generate an HTML report:
#goaccess -f  /var/log/httpd/access_log -a > report.html

To generate a CSV file:
# goaccess -f access.log -o csv > report.csv


Thanks,
Vishal Vyas

For more information and usage please visit http://goaccess.prosoftcorp.com/