Files in Linux

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1.0 Files

There are two basic concepts in Linux - processes and files. The processes do things and files keep all the important data. An efficient filesystem is important for an operating system. When Unix was conceived around 1969-70, several design decisions were taken to simplify the filesystem.… Read more

uptime and w commands in Linux

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The uptime and w commands in Linux and Unix systems give pointed information about the system uptime, load average and about logged in users.


The uptime command is given as,


And the output is like,

07:47:08 up 25 days, 17:54, 1 user, load average: 0.03, 0.09, 0.08

In the above output, 07:47:08 is the timestamp at the time the command was given.… Read more