What are grep patterns called?
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Explain about sh?
I know ssh, telnet, dns,apache all are worked on TCP/UDP but i want to know any one service which are working on UDP only?
What is the pwd command?
How do you know which shell I am using in linux?
What is the command to see on which port which service is running?
What is df -h command?
What is makefile target?
What file type is a makefile?
How to FTP user access other directory except his own home directory ?
Explain shift command of linux?
How do I run a command in linux?
in redhat Linux wat is the command to check at ahich date and time file was created?