What is mkdir?
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In order to improve your system’s security you decide to implement shadow passwords. What command should you use?
in unix how to change old name to new name
in LINUX,What are two subtle differences in using the more and the pg commands?
Suppose I lost a root password and I need to give it, I treid to change it through single usermode even though I am not get a password, then what is the otherprocedure to give a root password?
1.I want to change runlevel but the Users shall not be disturbed?how? 2.Disk have 5gb disk utilization even though files unable to create, why? 3.what are the internal and external command in linux? 4.sar command o/p? 5.how list the open files? 6.what is kernel compiling? 7.How do u See complete configuration in ur system? 8.how will u make a daily updates with cron daily? 9.which port is associated with ttys0? 10.specific some problems linux admin(if u are linux admin)faced and how did u overcome it?
10 Answers IBM, TCS,
I have Laptop. I want to assign DHCP ip address, but in my Laptop having Wireless and with wire NIC cards, it is possible to assign reserve ip address for both NIC card, but same host name?
What is the Difference between 'su' and 'su-' ?
What is a good processor speed?
How do you sort cpu in top command?
What does df command do in linux?
What is history command in linux?
How do I run a shell script?
Linux Commands 
