OR $ grep "1\|2" 1.txt 1 2 $ grep -E "1|2" 1.txt 1 2 grep -E "^1$|2" 1.txt 1 2 grep -e 1 -e 2 1.txt 1 2 egrep "1|2" 1.txt 1 2 AND grep -E '1.*2' 2.txt 1 2 grep '1' 2.txt | grep '2'…

In Red Hat Enterprise Linux 4 and below the file /etc/X11/gdm/gdm.conf could be modified to enable xdmcp. With Red Hat Enterprise Linux 5 and 6, the location to enable xdmcp has ch…

packages: yum install pixman pixman-devel libXfont  

On Red Hat Enterprise Linux 6: yum install tigervnc-server tigervnc On Red Hat Enterprise Linux 5: yum install vnc vnc-server On Red Hat Enterprise Linux 3 and 4: up2date vnc vnc-s…

Kernel Configuration Warning: The LSI Logic drivers in the 2.6.19+ kernel do not work with VMware. Set your SCSI type to BusLogic instead. (Please note the exception for VMWare Wor…

RPM Based Linux Flavors like CentOS need additional information in the Init script in order to work properly with chkconfig : # description: Description of the script # processname…

Found another useful thing on the web. This is the quick guide to rescan and configure newly added LUNS in Linux. To configure the newly added LUNS on RHEL: # ls /sys/class/fc_host…