Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
How to restart a frozen Linux System?
Answer:
Try the following two simple methods first:
If still not work, do the following:
How to kill a running process by command?
Answer:
For example, if Firefox hang, in the command prompt, just type in
pkill firefox
How to run multiple commands at once in Linux?
Answer:
You can separate the commands by a semicolon ;
e.g.
cat foo.txt; cat bar.txt
Two commands will be executed one by one.
However, if you want to execute a command if and only if previous command is executed successfully, then you can use && to separate them
e.g.
make && make install
So if make failed, make install will not be executed.
Should I install 32-bit or 64-bit Linux?
Answer:
Quote from AMD, the company who created the AMD64-architecture-that-your-64-bit-Linux-is-using.
Use a 64-bit system and stick to the compat layer if you have the need of running certain 32-bit applications.
Is it clear?
More information, see: http://forums.amd.com/devblog/blogpost.cfm?threadid=93648&catid=317
How to flush DNS cache in Linux
Answer:
If nscd was installed, simply restart it.
/etc/init.d/nscd restart
