Related Articles
Send E-Mail On Redhat / CentOS with SMTP (SMTP Relay)
In this tutorial we will send email with mailx and using external SMTP server for email sending from CentOS/Redhat Install mailx yum -y update yum install -y mailx We can now start sending e-mails using create a symbolic link ln -s /bin/mailx /bin/email Set an External SMTP Server to Relay E-Mails vi /etc/mail.rc edit set […]
Adding a New Disk Drive to a CentOS 6 / 7 System
Finding the New Hard Drive in CentOS # ls /dev/sd* /dev/sda /dev/sda1 /dev/sda2 /dev/sdb Creating Linux Partitions # su – # fdisk /dev/sdb Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0xd1082b01. Changes will remain in memory only, until you decide […]
AWK and Regular Expressions to Filter Text or String in Files
AWK is an interpreted programming language. It is very powerful and specially designed for text processing. AWK – Basic Examples This chapter describes several useful AWK commands and their appropriate examples. Consider a text file marks.txt to be processed with the following content − 1) Amit Physics 80 2) Rahul Maths 90 3) Shyam Biology […]