Q. I’m new to Linux and I would like to try out different distributions. Is there a way to dual boot 2 or 3 different Linux distributions on a laptop? I’m using Dell 6400 Laptop. A. Yes you can dual boot 2-3 distribution on a Laptop. You don’t need a special program. Linux boot loader [...]
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Q. I’m new to Linux command line. I’ve a command called unzip and a file called package.zip. I can extract file using command: unzip package.zip All files are extracted into current directory (it is making a directory called package). I want all files and subdirectory extracted into /opt directory. How do I extract files in [...]
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Q. I see few kernels while booting my Linux system. My question is on Linux how many kernel you can compile at the same time and how many Kernel you can load in Linux? A. You can compile as many as kernel (or different version of same kernel with different features such as router or [...]
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Q. I need to run a program called oraMon.pl. However this program is run from cron job. It report error to stderr and normal output to stdout. How do I save stdout, stderr and both into 3 separate log files? A. It is not that hard if you know howto redirect stderr, stdout and small [...]
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Q. I was reading some document online and come across statement like — it is a bad idea to run halt / ‘shutdown -h now’ command over ssh/telnet session. What’s wrong with running shutdown on a network? A. shutdown command arranges for the system to be brought down in a safe way. All logged-in users [...]
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Q. How do you set-up SSH with DSA public key authentication? I have Linux laptop called tom and remote Linux server called jerry. How do I setup DSA based authentication so I don’t have to type password? A. DSA public key authentication can only be established on a per system / user basis only i.e. [...]
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