Linux Tips

Author: Christophe Gevrey
Updated: [udate]

Note that the commands are given as samples, it may be possible that the paths change on your installation, in this case use the "locate" function to find the location of the missing item

Finding files by name: find /home/http/html/site/ -iname '*.htm' | grep nav_ Finding a string in files: find /path/to/start -name "*.file_extension" -exec grep "My_String" {} \; -print Stop a process by name: sudo killall processname Create a symbolic link to a directory (Linux shortcut): ln -s /home/http/html/subdir/ subdir_shortcut Adding user cri to group apache sudo /usr/sbin/usermod -G apache cri Retrieve a computer name from its IP address: host 192.168.0.1 Host 1.0.168.192.in-addr.arpa not found: 3(NXDOMAIN)

(in this case the IP is local, therefore not found...)

Display list of installed RPMs:


				rpm -q -a

Install an RPM on Linux:


				rpm -ivh pine-4.60-1.i386.rpm

Restarting Apache:


				sudo /etc/init.d/httpd stop

				sudo /etc/init.d/httpd start

Apache configuration file location:


				/etc/httpd/conf/httpd.conf

Verifying httpd.conf syntax (Apache config file):


				/usr/sbin/apachectl configtest


				/usr/sbin/httpd -t

Monitoring Apache Error Log:


				tail -f /home/http/logs/error_log

Creating and entry in .htpasswd to use in .htaccess:


				htpasswd -cb .htpasswd myuser mypassword

to be continued...